Hot rolled products of structural steels - Part 5: Technical delivery conditions for structural steels with improved atmospheric corrosion resistance

This document specifies technical delivery conditions for flat and long products of hot rolled steels with improved atmospheric corrosion resistance in the grades and qualities given in Tables 2 and 3 (chemical composition) and Tables 4 and 5 (mechanical properties) in the usual delivery conditions as given in 6.3.
The thicknesses in which products of the steel grades and qualities specified in this document can be supplied are given in Table 1.
Table 1 - Product forms for the different steel grades with improved atmospheric corrosion resistance depending on their thickness
[table not reproduced]
The steels specified in this document are not intended to be heat treated except products delivered in the delivery condition +N. Stress relieving is accepted. Products delivered in +N condition can be hot formed and/or normalized after delivery (see Clause 3).

Warmgewalzte Erzeugnisse aus Baustählen - Teil 5: Technische Lieferbedingungen für wetterfeste Baustähle

Dieses Dokumentes legt die technischen Lieferbedingungen für Flach- und Langerzeugnisse aus warmgewalzten wetterfesten Baustählen in den Sorten und Gütegruppen nach den Tabellen 2 und 3 (chemische Zusammensetzung) und den Tabellen 4 und 5 (mechanische Eigenschaften) im üblichen Lieferzustand nach 6.3 fest.
Die Dicken der Erzeugnisse aus den in diesem Dokument erfassten Sorten und Gütegruppen dürfen wie in Tabelle 1 angegeben geliefert werden.
Tabelle 1 -  Erzeugnisformen der wetterfesten Baustähle in Abhängigkeit von der Dicke
(...)
Die in diesem Dokument festgelegten Stähle sind, mit Ausnahme der Erzeugnisse im Lieferzustand +N, nicht für eine Wärmebehandlung vorgesehen. Spannungsarmglühen ist zulässig. Im Zustand +N gelieferte Erzeugnisse dürfen nach der Lieferung warm umgeformt und/oder normalgeglüht werden (siehe Abschnitt 3).

Produits laminés à chaud en aciers de construction - Partie 5 : Conditions techniques de livraison pour les aciers de construction à résistance améliorée à la corrosion atmosphérique

Le présent document spécifie les conditions techniques de livraison des produits plats et longs en aciers laminés à chaud à résistance améliorée à la corrosion atmosphérique, dans les nuances et qualités données dans les Tableaux 2 et 3 (composition chimique) et 4 et 5 (caractéristiques mécaniques), dans les états de livraison courants indiqués en 6.3.
Les épaisseurs dans lesquelles les produits en aciers des nuances et qualités spécifiées dans le présent document peuvent être livrés sont données dans le Tableau 1.
Tableau 1 - Formes de produits pour les différentes nuances d'acier à résistance améliorée à la corrosion atmosphérique en fonction de leur épaisseur
(...)
Les aciers spécifiés dans le présent document ne sont pas destinés à subir un traitement thermique, à l’exception des produits livrés à l'état +N. Le traitement de relaxation des contraintes est admis. Les produits livrés à l'état +N peuvent être formés à chaud et/ou normalisés après livraison (voir Article 3).

Vroče valjani izdelki iz konstrukcijskih jekel - 5. del: Tehnični dobavni pogoji za konstrukcijska jekla z izboljšano odpornostjo proti atmosferski koroziji

5. del tega dokumenta poleg 1. dela določa zahteve za ploske in dolge izdelke iz vroče valjanega jekla z izboljšano atmosfersko korozijsko odpornostjo v razredih ter z lastnostmi iz preglednic 2 in 3 (kemična sestava) ter preglednic 4 in 5 (mehanske lastnosti) v običajnih dobavnih pogojih, podanih v točki 6.3.
Debeline, v katerih so lahko dobavljeni izdelki iz jekla razredov in z lastnostmi, ki so navedeni v tem dokumentu, so podane v preglednici 1.
Poleg namena uporabe iz standarda EN 10025-1:2004 so jekla v tem dokumentu namenjena posebej za uporabo v varjenih, vijačnih in kovičenih sestavnih delih, ki imajo povečano odpornost proti atmosferski koroziji in se uporabljajo pri temperaturah okolice (ob upoštevanju omejitev iz točke 7.4.1).
Jekla iz tega 5. dela niso predvidena za toplotno obdelavo, razen izdelkov, dobavljenih v stanju dobave +N. Kaljenje za zmanjšanje napetosti je dovoljeno (glej tudi OPOMBO v točki 7.3.1.1 standarda EN 10025-1:2004). Izdelke, dobavljene v stanju +N, je mogoče po dostavi vroče oblikovati in/ali normalizirati (glej točko 3).

General Information

Status
Published
Publication Date
13-Aug-2019
Current Stage
6060 - Definitive text made available (DAV) - Publishing
Due Date
14-Aug-2019
Completion Date
14-Aug-2019

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Standards Content (sample)

SLOVENSKI STANDARD
SIST EN 10025-5:2019
01-oktober-2019
Nadomešča:
SIST EN 10025-5:2005

Vroče valjani izdelki iz konstrukcijskih jekel - 5. del: Tehnični dobavni pogoji za

konstrukcijska jekla z izboljšano odpornostjo proti atmosferski koroziji

Hot rolled products of structural steels - Part 5: Technical delivery conditions for structural

steels with improved atmospheric corrosion resistance

Warmgewalzte Erzeugnisse aus Baustählen - Teil 5: Technische Lieferbedingungen für

wetterfeste Baustähle

Produits laminés à chaud en aciers de construction - Partie 5 : Conditions techniques de

livraison pour les aciers de construction à résistance améliorée à la corrosion
atmosphérique
Ta slovenski standard je istoveten z: EN 10025-5:2019
ICS:
77.140.10 Jekla za toplotno obdelavo Heat-treatable steels
77.140.50 Ploščati jekleni izdelki in Flat steel products and semi-
polizdelki products
SIST EN 10025-5:2019 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST EN 10025-5:2019
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SIST EN 10025-5:2019
EN 10025-5
EUROPEAN STANDARD
NORME EUROPÉENNE
August 2019
EUROPÄISCHE NORM
ICS 77.140.10; 77.140.50 Supersedes EN 10025-5:2004
English Version
Hot rolled products of structural steels - Part 5: Technical
delivery conditions for structural steels with improved
atmospheric corrosion resistance

Produits laminés à chaud en aciers de construction - Warmgewalzte Erzeugnisse aus Baustählen - Teil 5:

Partie 5 : Conditions techniques de livraison pour les Technische Lieferbedingungen für wetterfeste

aciers de construction à résistance améliorée à la Baustähle
corrosion atmosphérique
This European Standard was approved by CEN on 16 June 2019.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this

European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references

concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN

member.

This European Standard exists in three official versions (English, French, German). A version in any other language made by

translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management

Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,

Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,

Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and

United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels

© 2019 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 10025-5:2019 E

worldwide for CEN national Members.
---------------------- Page: 3 ----------------------
SIST EN 10025-5:2019
EN 10025-5:2019 (E)
Contents Page

European foreword ....................................................................................................................................................... 4

1 Scope .................................................................................................................................................................... 6

2 Normative references .................................................................................................................................... 7

3 Terms and definitions ................................................................................................................................... 9

4 Classification and designation ................................................................................................................. 10

4.1 Classification .................................................................................................................................................. 10

4.1.1 Main quality classes .................................................................................................................................... 10

4.1.2 Grades and qualities ................................................................................................................................... 10

4.2 Designation..................................................................................................................................................... 10

5 Information to be supplied by the purchaser .................................................................................... 11

5.1 Mandatory information ............................................................................................................................. 11

5.2 Options ............................................................................................................................................................. 11

6 Manufacturing process ............................................................................................................................... 11

6.1 Steel making process .................................................................................................................................. 11

6.2 Deoxidation .................................................................................................................................................... 11

6.3 Delivery conditions ..................................................................................................................................... 11

7 Requirements ................................................................................................................................................ 12

7.1 General ............................................................................................................................................................. 12

7.2 Chemical composition ................................................................................................................................ 12

7.3 Mechanical properties ................................................................................................................................ 12

7.3.1 General ............................................................................................................................................................. 12

7.3.2 Impact properties ........................................................................................................................................ 13

7.3.3 Improved deformation properties perpendicular to the surface .............................................. 13

7.4 Technological properties .......................................................................................................................... 13

7.4.1 Weldability ..................................................................................................................................................... 13

7.4.2 Formability and flame straightening .................................................................................................... 13

7.5 Surface properties ....................................................................................................................................... 14

7.5.1 Strip ................................................................................................................................................................... 14

7.5.2 Plates and wide flats ................................................................................................................................... 14

7.5.3 Sections ............................................................................................................................................................ 14

7.5.4 Bars and rods ................................................................................................................................................. 14

7.6 Internal soundness ...................................................................................................................................... 14

7.7 Dimensions, tolerances on dimensions and shape, mass .............................................................. 15

8 Inspection ....................................................................................................................................................... 15

8.1 Type of inspection and inspection document .................................................................................... 15

8.2 Content of inspection document ............................................................................................................. 15

8.3 Tests to be carried out for specific inspection ................................................................................... 16

9 Frequency of testing and preparation of samples and test pieces ............................................. 16

9.1 Frequency of testing .................................................................................................................................... 16

9.1.1 Chemical analysis ......................................................................................................................................... 16

9.1.2 Mechanical tests ........................................................................................................................................... 16

9.2 Preparation of samples and test pieces ............................................................................................... 16

9.2.1 Selection and preparation of samples for chemical analysis ....................................................... 16

9.2.2 Location of samples and orientation and test pieces for mechanical tests ............................. 17

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SIST EN 10025-5:2019
EN 10025-5:2019 (E)

9.2.3 Preparation of test pieces for mechanical tests................................................................................. 17

9.3 Identification of samples and test pieces ............................................................................................. 18

10 Test methods .................................................................................................................................................. 18

10.1 Chemical analysis ......................................................................................................................................... 18

10.2 Mechanical tests ............................................................................................................................................ 18

10.2.1 Tensile test ...................................................................................................................................................... 18

10.2.2 Impact test ....................................................................................................................................................... 18

10.3 Ultrasonic testing .......................................................................................................................................... 19

10.4 Retests .............................................................................................................................................................. 19

11 Marking, labelling, packaging .................................................................................................................. 19

12 Complaints ...................................................................................................................................................... 19

13 Options ............................................................................................................................................................. 20

Annex A (normative) Location of samples and test pieces ........................................................................... 29

Annex B (informative) Additional information for the use of steel with improved

atmospheric corrosion resistance .......................................................................................................... 32

Annex C (informative) Notes on fabrication ....................................................................................................... 33

C.1 Weldability ...................................................................................................................................................... 33

C.2 Riveting and bolting ..................................................................................................................................... 33

Annex D (informative) List of Options of EN 10025-2 to −6 ......................................................................... 34

Bibliography ................................................................................................................................................................. 36

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SIST EN 10025-5:2019
EN 10025-5:2019 (E)
European foreword

This document (EN 10025-5:2019) has been prepared by Technical Committee CEN/TC 459/SC 3

“Structural steels other than reinforcements”, the secretariat of which is held by DIN.

This European Standard shall be given the status of a national standard, either by publication of an

identical text or by endorsement, at the latest by February 2020 and conflicting national standards shall

be withdrawn at the latest by February 2020.

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. CEN shall not be held responsible for identifying any or all such patent rights.

This document supersedes EN 10025-5:2004.

This document consists of the following parts, under the general title Hot rolled products of structural

steels:
— Part 1: General technical delivery conditions
— Part 2: Technical delivery conditions for non-alloy structural steels

— Part 3: Technical delivery conditions for normalized/normalized rolled weldable fine grain structural

steels

— Part 4: Technical delivery conditions for thermomechanical rolled weldable fine grain structural steels

— Part 5: Technical delivery conditions for structural steels with improved atmospheric corrosion

resistance

— Part 6: Technical delivery conditions for flat products of high yield strength structural steels in the

quenched and tempered condition

For a short transition period there will be a coexistence of EN 10025-1:2004 with EN 10025-2:2019 to -

EN 10025-6:2019, since the new EN 10025-1 has to fulfil the requirements of the CPR and will

therefore be published later. For this short transition period up-to-the publication of the next edition of

part 1 the following is to be taken into account for EN 10025-1:2004:

a) all dated and undated references to EN 10025-1:2004 to EN 10025-6:2004 are unchanged to this

version with following exception: In 9.2.2.1 the references are 8.3.1 and 8.3.2 instead of 8.4.1 and

8.4.2;
b) Clauses 5, 12 and 13 of EN 10025-1:2004 are no longer relevant.
The main changes with respect to the previous edition are listed below:

a) part 5 is now a stand-alone standard for technical delivery conditions including the preparation of

samples and test pieces, the test methods, the marking, labelling and packaging and the drawings;

b) for applications under the CPR this document and part 1 are to be used together;

c) requirements for elements not definded were added to 7.2.1 and 7.2.2;
d) Option 33 were added, Options 9 and 21 were deleted;
e) key to Figure A.1 was updated;
---------------------- Page: 6 ----------------------
SIST EN 10025-5:2019
EN 10025-5:2019 (E)

f) steel grades S355J4, S420J0W, S420J2W, S420J4W, S460J0W, S460J2W and S460J4W were added to

Tables 1 to 5;
g) Annex B concerning the corresponding EURONORMS deleted;
h) references were updated and document editorial revised.

According to the CEN-CENELEC Internal Regulations, the national standards organisations of the

following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,

Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Republic of North Macedonia, France,

Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands,

Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and

the United Kingdom.
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SIST EN 10025-5:2019
EN 10025-5:2019 (E)
1 Scope

This document specifies technical delivery conditions for flat and long products of hot rolled steels with

improved atmospheric corrosion resistance in the grades and qualities given in Tables 2 and 3

(chemical composition) and Tables 4 and 5 (mechanical properties) in the usual delivery conditions as

given in 6.3.

The thicknesses in which products of the steel grades and qualities specified in this document can be

supplied are given in Table 1.

Table 1 — Product forms for the different steel grades with improved atmospheric corrosion

resistance depending on their thickness
Designation Flat products Long products
Nominal thickness Sections Bars Rods
mm Nominal thickness or diameter
Steel name Steel number mm
≤ 12 ≤ 150 ≤ 63 ≤ 150 ≤ 60
S235J0W 1.8958 x x x x
S235J2W 1.8961 x x x x
S355J0WP 1.8945 x
S355J2WP 1.8946 x
S355J0W 1.8959 x x x x
S355J2W 1.8965 x x x x
S355K2W 1.8967 x x x x
S355J4W 1.8787 x x x x
S355J5W 1.8991 x
S420J0W 1.8943 x x
S420J2W 1.8949 x x
S420K2W 1.8997 x x
S420J4W 1.8954 x
S420J5W 1.8992 x
S460J0W 1.8966 x x
S460J2W 1.8980 x x
S460K2W 1.8990 x x
S460J4W 1.8981 x
S460J5W 1.8993 x

The steels specified in this document are not intended to be heat treated except products delivered in

the delivery condition +N. Stress relieving is accepted. Products delivered in +N condition can be hot

formed and/or normalized after delivery (see Clause 3).
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SIST EN 10025-5:2019
EN 10025-5:2019 (E)
2 Normative references

The following documents are referred to in the text in such a way that some or all of their content

constitutes requirements of this document. For dated references, only the edition cited applies. For

undated references, the latest edition of the referenced document (including any amendments) applies.

EN 10017, Steel rod for drawing and/or cold rolling — Dimensions and tolerances
EN 10020:2000, Definition and classification of grades of steel
EN 10021, General technical delivery conditions for steel products

EN 10024, Hot rolled taper flange I sections — Tolerances on shape and dimensions

EN 10025-1, Hot rolled products of structural steels — Part 1: General technical delivery conditions

EN 10027-1, Designation systems for steels — Part 1: Steel names
EN 10027-2, Designation systems for steels — Part 2: Numerical system

EN 10029, Hot-rolled steel plates 3 mm thick or above — Tolerances on dimensions and shape

EN 10034, Structural steel I and H sections — Tolerances on shape and dimensions
EN 10048, Hot rolled narrow steel strip — Tolerances on dimensions and shape

EN 10051, Continuously hot-rolled strip and plate/sheet cut from wide strip of non-alloy and alloy steels

— Tolerances on dimensions and shape

EN 10055, Hot rolled steel equal flange tees with radiused root and toes — Dimensions and tolerances on

shape and dimensions
EN 10056-1, Structural steel equal and unequal leg angles —Part 1: Dimensions

EN 10056-2, Structural steel equal and unequal leg angles — Part 2: Tolerances on shape and dimensions

EN 10058, Hot rolled flat steel bars and steel wide flats for general purposes — Dimensions and tolerances

on shape and dimensions

EN 10059, Hot rolled square steel bars for general purposes — Dimensions and tolerances on shape and

dimensions

EN 10060, Hot rolled round steel bars for general purposes — Dimensions and tolerances on shape and

dimensions

EN 10061, Hot rolled hexagon steel bars for general purposes — Dimensions and tolerances on shape and

dimensions

EN 10067, Hot rolled bulb flats — Dimensions and tolerances on shape, dimensions and mass

EN 10079, Definition of steel products

EN 10160, Ultrasonic testing of steel flat product of thickness equal or greater than 6 mm (reflection

method)
---------------------- Page: 9 ----------------------
SIST EN 10025-5:2019
EN 10025-5:2019 (E)

EN 10163-1, Delivery requirements for surface condition of hot-rolled steel plates, wide flats and sections

— Part 1: General requirements

EN 10163-2, Delivery requirements for surface condition of hot-rolled steel plates, wide flats and sections

— Part 2: Plate and wide flats

EN 10163-3, Delivery requirements for surface condition of hot-rolled steel plates, wide flats and sections

— Part 3: Sections

EN 10164, Steel products with improved deformation properties perpendicular to the surface of the

product — Technical delivery conditions

EN 10168, Steel products — Inspection documents — List of information and description

EN 10204, Metallic products — Types of inspection documents
EN 10279, Hot rolled steel channels — Tolerances on shape, dimensions and mass

EN 10306, Iron and steel — Ultrasonic testing of H beams with parallel flanges and IPE beams

EN 10308, Non destructive testing — Ultrasonic testing of steel bars

EN 10315, Routine method for analysis of high alloy steel by X-ray Fluorescence Spectrometry (XRF) by

using a near by technique

CR 10320, Optical emission analysis of low alloy steels (routine method) — Method for determination of C,

Si, S, P, Mn, Cr, Ni and Cu
CEN/TR 10347, Guidance for forming of structural steels in processing

EN 10363, Continuously hot-rolled patterned steel strip and plate/sheet cut from wide strip — Tolerances

on dimensions and shape
EN 10365, Hot rolled steel channels, I and H sections — Dimensions and masses

EN ISO 148-1, Metallic materials — Charpy pendulum impact test — Part 1: Test method (ISO 148-1)

EN ISO 377, Steel and steel products — Location and preparation of samples and test pieces for

mechanical testing (ISO 377)

EN ISO 2566-1, Steel — Conversion of elongation values — Part 1: Carbon and low alloy steels

(ISO 2566-1)

EN ISO 6892-1:2016, Metallic materials — Tensile testing — Part 1: Method of test at room temperature

(ISO 6892-1:2016)
EN ISO 9443, Surface quality classes for hot-rolled bars and wire rod (ISO 9443)

EN ISO 14284, Steel and iron — Sampling and preparation of samples for the determination of chemical

composition (ISO 14284)

EN ISO 15350, Steel and iron — Determination of total carbon and sulfur content — Infrared absorption

method after combustion in an induction furnace (routine method) (ISO 15350)
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SIST EN 10025-5:2019
EN 10025-5:2019 (E)
3 Terms and definitions

For the purposes of this document, the terms and definitions given in EN 10079 and the following apply.

ISO and IEC maintain terminological databases for use in standardization at the following addresses:

— IEC Electropedia: available at http://www.electropedia.org/
— ISO Online browsing platform: available at http://www.iso.org/obp
3.1
normalized rolled

rolling process in which the final deformation is carried out in a certain temperature range leading to a

material condition equivalent to that obtained after normalizing so that the specified values of the

mechanical properties are retained even after normalizing

Note 1 to entry: In international publications for both the normalizing rolling, as well as the thermomechanical

rolling, the expression “controlled rolling” may be found. However in view of the different applicability of the

products a distinction of the terms is necessary.
3.2
as-rolled
+AR

conventional hot rolling without any normalized rolling or thermomechanical rolling and/or heat

treatment condition like normalizing or quenching
3.3
thermomechanical rolling

rolling process in which the final deformation is carried out in a certain temperature range leading to a

material condition with certain properties which cannot be achieved or repeated by heat treatment

alone

Note 1 to entry: Thermomechanical rolling leading to the delivery condition +M can include processes with an

increasing cooling rate with or without tempering including self-tempering but excluding direct quenching and

quenching and tempering.

Note 2 to entry: In some publications the word TMCP (Thermomechanical Control Process) is also used.

3.4
normalizing
heat treatment consisting of austenitizing followed by air cooling
3.5
steel with improved atmospheric corrosion resistance

steel in which a certain number of alloying elements, such as P, Cu, Cr, Ni, Mo, has been added in order

to increase its resistance to atmospheric corrosion, by forming an auto-protective oxide layer on the

base metal under the influence of weather conditions

Note 1 to entry: Steel with improved atmospheric corrosion resistance is often called weathering steel.

Note 2 to entry: Additional information for the use of steel with improved atmospheric corrosion resistance is

given in Annex B.
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SIST EN 10025-5:2019
EN 10025-5:2019 (E)
4 Classification and designation
4.1 Classification
4.1.1 Main quality classes

The steel grades specified in this document shall be classified as alloy special steels according to

EN 10020.
4.1.2 Grades and qualities
This document specifies four steel grades S235, S355, S420 and S460.

The steel grades may be supplied in different qualities. The qualities differ in specified impact energy

requirements (see Table 5).

Grade S355 is subdivided into the classes W and WP, which differ mainly in their carbon and

phosphorus contents (see Tables 2 and 3) and availability (see Table 1).
4.2 Designation

4.2.1 For the steel grades covered by this document the steel names shall be allocated in accordance

with EN 10027-1; the steel numbers shall be allocated in accordance with EN 10027-2.

4.2.2 The designation shall consist of:
— the number of this document (EN 10025-5);
— the steel name or the steel number; the steel name consisting of:
— symbol S (for structural steel);

— indication of the minimum specified yield strength for thickness ≤ 16 mm expressed in MPa;

— quality designation (see 4.1.2) in respect of specified impact energy values;

— letter W indicating that the steel has an improved atmospheric corrosion resistance;

— if applicable, the letter P for the class with a greater phosphorus content (only in the case of

grade S355);

— the indication “+N”, “+AR” or “+M”, when the products are ordered and delivered in the condition

+N, +AR or +M (see 3.1, 3.2, 3.3, 3.4 and 6.3). The indication “+N”, “+AR” or “+M” shall be added to

the steel name or steel number.

EXAMPLE Structural steel (S) with improved atmospheric corrosion resistance (W), with a specified

minimum yield strength at room temperature of 355 MPa with a minimum impact energy of 27 J at 0 °C (J0),

delivery condition +N:
EN 10025-5 - S355J0W+N
EN 10025-5 - 1.8959+N
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SIST EN 10025-5:2019
EN 10025-5:2019 (E)
5 Information to be supplied by the purchaser
5.1 Mandatory information

The following information shall be supplied by the purchaser at the time of the order:

a) quantity to be delivered;

b) product form and the number of the standard for dimensions and tolerances(see 2.2);

c) nominal dimensions and tolerances on dimensions and shape (see 7.7.1);
d) steel designation (see 4.2.2);

e) additional requirements of inspection and testing and all required options (see 5.2 and Clause 13);

f) type of inspection document according to EN 10204 (see 8.1);
5.2 Options

A number of options are specified in Clause 13. In the event that the purchaser does not indicate his

wish to implement any of these options, the supplier shall supply in accordance with the basic

specification, see 5.1 a) to d) and f).
6 Manufacturing process
6.1 Steel making process

The steel making process is at the discretion of the manufacturer with the exclusion of the open hearth

(Siemens-Martin) process.
See Option 1, Clause 13 (details of manufacturing process).
6.2 Deoxidation
The deoxidation methods are designated as follows:
a) FN Rimming steel not permitted;

b) FF Fully killed steel containing nitrogen binding elements in amounts sufficient to bind

the available nitrogen (for example min. 0,020 % total aluminium). The usual
guideline is a minimum aluminium to nitrogen ratio of 2:1, when no other
nitrogen binding elements are present. Such other elements and their content (%
mass) shall be reported in the inspection document.
The method of deoxidation shall be as given in Table 2.
6.3 Delivery conditions

Unless otherwise agreed upon the delivery condition of products can be +AR, +N or +M at the

manufacturer's discretion.
See Option 19, Clause 13 (delivery condition +AR, +N or +M).

If an inspection document is required (see 8.1) the delivery condition shall be indicated in it with its

specific symbol (+AR, +N or +M). In case the products are ordered i
...

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.RUR]LMLWarmgewalzte Erzeugnisse aus Baustählen - Teil 5: Technische Lieferbedingungen für wetterfeste BaustähleProduits laminés à chaud en aciers de construction - Partie 5 : Conditions techniques de livraison pour les aciers de construction à résistance améliorée à la corrosion atmosphériqueHot rolled products of structural steels - Part 5: Technical delivery conditions for structural steels with improved atmospheric corrosion resistance77.140.50SROL]GHONLFlat steel products and semi-products77.140.10Jekla za toplotno obdelavoHeat-treatable steelsICS:Ta slovenski standard je istoveten z:prEN 10025-5oSIST prEN 10025-5:2018en,fr,de01-september-2018oSIST prEN 10025-5:2018SLOVENSKI

STANDARD
oSIST prEN 10025-5:2018
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
DRAFT prEN 10025-5
June
t r s z ICS
y yä s v rä s râ
y yä s v rä w r Will supersede EN
s r r t wæ wã t r r vEnglish Version
Hot rolled products of structural steels æ Part

wã Technical delivery conditions for structural steels with improved atmospheric corrosion resistance Produits laminés à chaud en aciers de construction æ Partie

w ã Conditions techniques de livraison pour les aciers de construction à résistance améliorée à la corrosion atmosphérique

Warmgewalzte Erzeugnisse aus Baustählen æ Teil

wã Technische Lieferbedingungen für wetterfeste Baustähle This draft European Standard is submitted to CEN members for second enquiryä It has been drawn up by the Technical

If this draft becomes a European Standardá CEN members are bounwhich stipulate the conditions for giving this European Standard the status of a national standard without any alterationä

This draft European Standard was established by CEN in three ofer language made by translation under the responsibility of a CEN member into its own language and notified to the CENæCENELEC Management Centre has the same status as the official versionsä

CEN members are the national standards bodies of Austriaá Belgiumá Bulgariaá Croatiaá Cyprusá Czech Republicá Denmarká Estoniaá Finlandá Former Yugoslav Republic of Macedoniaá Franceá Germanyá Greeceá Hungaryá Icelandá Irelandá Italyá Latviaá Lithuaniaá Luxembourgá Maltaá Netherlandsá Norwayá Polandá Portugalá Romaniaá Serbiaá Slovakiaá Sloveniaá Spainá Swedená Switzerlandá Turkey and United Kingdomä

Recipients of this draft are invited to submitá with their commentsá notification of any relevant patent rights of which they are aware and to provide supporting documentationä

Warning ã This document is not a European Standardä It is distributed for review and commentsä It is subject to change without notice and shall not be referred to as a European Standardä

EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre:
Rue de la Science 23,
B-1040 Brussels

t r s z CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membersä Refä Noä prEN

s r r t wæ wã t r s z EoSIST prEN 10025-5:2018

prEN 10025-5:2018 (E) 2 Contents Page European foreword ....................................................................................................................................................... 4 1 Scope .................................................................................................................................................................... 6 2 Normative references .................................................................................................................................... 6 2.1 General standards ........................................................................................................................................... 7 2.2 Standards on tolerances on dimensions and shape ........................................................................... 7 2.3 Standards on testing ...................................................................................................................................... 8 3 Terms and definitions ................................................................................................................................... 8 4 Classification and designation ................................................................................................................. 10 4.1 Classification .................................................................................................................................................. 10 4.1.1 Main quality classes .................................................................................................................................... 10 4.1.2 Grades and qualities ................................................................................................................................... 10 4.2 Designation..................................................................................................................................................... 10 5 Information to be supplied by the purchaser .................................................................................... 11 5.1 Mandatory information ............................................................................................................................. 11 5.2 Options ............................................................................................................................................................. 11 6 Manufacturing process ............................................................................................................................... 11 6.1 Steel making process .................................................................................................................................. 11 6.2 Deoxidation and grain structure ............................................................................................................ 11 6.3 Delivery conditions ..................................................................................................................................... 11 7 Requirements ................................................................................................................................................ 12 7.1 General ............................................................................................................................................................. 12 7.2 Chemical composition ................................................................................................................................ 12 7.3 Mechanical properties ................................................................................................................................ 12 7.3.1 General ............................................................................................................................................................. 12 7.3.2 Impact properties ........................................................................................................................................ 13 7.3.3 Improved deformation properties perpendicular to the surface .............................................. 13 7.4 Technological properties .......................................................................................................................... 13 7.4.1 Weldability ..................................................................................................................................................... 13 7.4.2 Formability and flame straightening .................................................................................................... 13 7.5 Surface properties ....................................................................................................................................... 14 7.5.1 Strip ................................................................................................................................................................... 14 7.5.2 Plates and wide flats ................................................................................................................................... 14 7.5.3 Sections ............................................................................................................................................................ 14 7.5.4 Bars and rods ................................................................................................................................................. 14 7.6 Internal soundness ...................................................................................................................................... 14 7.7 Dimensions, tolerances on dimensions and shape, mass .............................................................. 14 8 Inspection ....................................................................................................................................................... 15 8.1 General ............................................................................................................................................................. 15 8.2 Type of inspection and inspection document .................................................................................... 15 8.3 Tests to be carried out for specific inspection ................................................................................... 15 9 Frequency of testing and preparation of samples and test pieces ............................................. 16 9.1 Frequency of testing .................................................................................................................................... 16 9.1.1 Chemical analysis ......................................................................................................................................... 16 oSIST prEN 10025-5:2018

prEN 10025-5:2018 (E) 3 9.1.2 Mechanical tests ............................................................................................................................................ 16 9.2 Preparation of samples and test pieces ................................................................................................ 16 9.2.1 Selection and preparation of samples for chemical analysis........................................................ 16 9.2.2 Location of samples and orientation and test pieces for mechanical tests ............................. 16 9.2.3 Preparation of test pieces for mechanical tests................................................................................. 16 9.3 Identification of samples and test pieces ............................................................................................. 17 10 Test methods .................................................................................................................................................. 17 10.1 Chemical analysis ......................................................................................................................................... 17 10.2 Mechanical tests ............................................................................................................................................ 18 10.2.1 Tensile test ...................................................................................................................................................... 18 10.2.2 Impact test ....................................................................................................................................................... 18 10.3 Ultrasonic testing .......................................................................................................................................... 18 10.4 Retests .............................................................................................................................................................. 18 11 Marking, labelling, packaging .................................................................................................................. 19 12 Complaints ...................................................................................................................................................... 19 13 Options ............................................................................................................................................................. 19 Annex A (normative)

Location of samples and test pieces ........................................................................... 28 Annex B (informative)

Additional information for the use of steel with improved atmospheric corrosion resistance .......................................................................................................... 31 Annex C (informative)

Notes on fabrication ....................................................................................................... 32 C.1 Weldability ...................................................................................................................................................... 32 C.2 Riveting and bolting ..................................................................................................................................... 32 Bibliography ................................................................................................................................................................. 33 oSIST prEN 10025-5:2018

prEN 10025-5:2018 (E) 4 European foreword This document (prEN 10025-5:2018) has been prepared by Technical Committee ECISS/TC 103 “Structural steels other than reinforcements”, the secretariat of which is held by DIN. This document is currently submitted to the second CEN Enquiry. This document will supersede EN 10025-5:2004. This European Standard consists of the following parts, under the general title Hot rolled products of structural steels: Part 1: General Part 2: Technical delivery conditions for non-alloy structural steels Part 3: Technical delivery conditions for normalized/normalized rolled weldable fine grain structural steels Part 4: Technical delivery conditions for thermomechanical rolled weldable fine grain structural steels Part 5: Technical delivery conditions for structural steels with improved atmospheric corrosion resistance Part 6: Technical delivery conditions for flat products of high yield strength structural steels in the quenched and tempered condition For a short transition period there will be a coexistence of EN 10025-1:2004 with EN 10025-2:2008 to - EN 10025-6:2018, since the new EN 10025-1 has to fulfil the requirements of the CPR and will therefore be published later. For this short transition period up-to-the publication of the next edition of part 1 the following has to be taken into account for EN 10025-1:2004: a) all dated and undated references to EN 10025-1:2004 to EN 10025-6:2004 are unchanged to this version with following exception: In 9.2.2.1 the reference must be 8.3.1 and 8.3.2 instead of 8.4.1 and 8.4.2; b) Clauses 5, 12 and 13 of EN 10025-1:2004 are no longer relevant. The main changes with respect to the previous edition are listed below: a) part 5 is now a stand-alone standard for technical delivery conditions including the preparation of samples and test pieces, the test methods, the marking, labelling and packaging and the drawings; b) for construction purposes this standard and part 1 must be used together; c) requirements for elements not definded were added to 7.2.1 and 7.2.2; d) Option 33 were added, Options 9 and 21 were deleted; e) key to Figure A.1 was updated; f) steel grades S355J4, S420J0W, S420J2W, S420J4W, S460J0W, S460J2W and S460J4W were added to Tables 1 to 5; oSIST prEN 10025-5:2018

prEN 10025-5:2018 (E) 5 g) Annex B deleted; h) references were updated and document editorial revised.

oSIST prEN 10025-5:2018

prEN 10025-5:2018 (E) 6 1 Scope This document specifies technical delivery conditions for flat and long products of hot rolled steels with improved atmospheric corrosion resistance in the grades and qualities given in Tables 2 and 3 (chemical composition) and Tables 4 and 5 (mechanical properties) in the usual delivery conditions as given in 6.3. The thicknesses in which products of the steel grades and qualities specified in this document may be supplied are given in Table 1. Table 1 — Product forms for the different steel grades with improved atmospheric corrosion resistance depending on their thickness Designation Flat products Long products

Nominal thickness Sections Bars Rods
mm Nominal thickness or diameter Steel name Steel number
s t
s w r
x u
s w r
x r S235J0W S235J2W 1.8958 1.8961
x x x x x x x x S355J0WP S355J2WP 1.8945 1.8946 x x
S355J0W S355J2W S355K2W S355J4W S355J5W 1.8959 1.8965 1.8967 1.8913 1.8991

x x x x x x x x x x x x x x x x x S420J0W S420J2W S420K2W S420J4W S420J5W 1.8943 1.8949 1.8997 1.8954 1.8992

x x x x x x x x
S460J0W S460J2W S460K2W S460J4W S460J5W 1.8966 1.8980 1.8990 1.8981 1.8993
x x x x x x x x

The steels specified in this document are not intended to be heat treated except products delivered in the delivery condition +N. Stress relieving is permitted. Products delivered in +N condition can be hot formed and/or normalized after delivery (see Clause 3). 2 Normative references The following documents are referred to in the text in such a way that some or all of their content constitutes requirements of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. oSIST prEN 10025-5:2018

prEN 10025-5:2018 (E) 7 2.1 General standards EN 1011-2, Welding — Recommendations for welding of metallic materials — Part 2: Arc welding of ferritic steels EN 10020:2000, Definition and classification of grades of steel EN 10021, General technical delivery conditions for steel products EN 10025-1:2004, Hot rolled products of structural steels — Part 1: General technical delivery conditions EN 10027-1, Designation systems for steels — Part 1: Steel names EN 10027-2, Designation systems for steels — Part 2: Numerical system EN 10079, Definition of steel products EN 10163-1, Delivery requirements for surface condition of hot-rolled steel plates, wide flats and sections — Part 1: General requirements EN 10163-2, Delivery requirements for surface condition of hot-rolled steel plates, wide flats and sections — Part 2: Plate and wide flats EN 10163-3, Delivery requirements for surface condition of hot-rolled steel plates, wide flats and sections — Part 3: Sections EN 10164, Steel products with improved deformation properties perpendicular to the surface of the product — Technical delivery conditions EN 10168, Steel products — Inspection documents - List of information and description EN 10204, Metallic products — Types of inspection documents CEN/TR 10347, Guidance for forming of structural steels in processing FprEN ISO 9443:2018, Surface quality classes for hot-rolled bars and wire rod (ISO/FDIS 9443:2018) 2.2 Standards on tolerances on dimensions and shape EN 10017, Steel rod for drawing and/or cold rolling — Dimensions and tolerances EN 10024, Hot rolled taper flange I sections — Tolerances on shape and dimensions EN 10029, Hot-rolled steel plates 3 mm thick or above — Tolerances on dimensions and shape EN 10034, Structural steel I and H sections — Tolerances on shape and dimensions EN 10048, Hot rolled narrow steel strip — Tolerances on dimensions and shape EN 10051, Continuously hot-rolled strip and plate/sheet cut from wide strip of non-alloy and alloy steels — Tolerances on dimensions and shape EN 10055, Hot rolled steel equal flange tees with radiused root and toes — Dimensions and tolerances on shape and dimensions oSIST prEN 10025-5:2018

prEN 10025-5:2018 (E) 8 EN 10056-1, Structural steel equal and unequal leg angles — Part 1: Dimensions EN 10056-2, Structural steel equal and unequal leg angles — Part 2: Tolerances on shape and dimensions EN 10058, Hot rolled flat steel bars for general purposes — Dimensions and tolerances on shape and dimensions EN 10059, Hot rolled square steel bars for general purposes — Dimensions and tolerances on shape and dimensions EN 10060, Hot rolled round steel bars for general purposes — Dimensions and tolerances on shape and dimensions EN 10061, Hot rolled hexagon steel bars for general purposes — Dimensions and tolerances on shape and dimensions EN 10067, Hot rolled bulb flats — Dimensions and tolerances on shape, dimensions and mass EN 10279, Hot rolled steel channels — Tolerances on shape, dimensions and mass EN 10363, Continuously hot-rolled patterned steel strip and plate/sheet cut from wide strip — Tolerances on dimensions and shape EN 10365, Hot rolled steel channels, I and H sections — Dimensions and masses 2.3 Standards on testing EN 10160, Ultrasonic testing of steel flat product of thickness equal or greater than 6 mm (reflection method) EN 10306, Iron and steel — Ultrasonic testing of H beams with parallel flanges and IPE beams EN 10308, Non destructive testing — Ultrasonic testing of steel bars EN ISO 148-1, Metallic materials — Charpy pendulum impact test — Part 1: Test method (ISO 148-1) EN ISO 377, Steel and steel products — Location and preparation of samples and test pieces for mechanical testing (ISO 377) EN ISO 643, Steels — Micrographic determination of the apparent grain size (ISO 643:2012) EN ISO 6892-1:2016, Metallic materials — Tensile testing — Part 1: Method of test at room temperature (ISO 6892-1:2016) EN ISO 14284, Steel and iron — Sampling and preparation of samples for the determination of chemical composition (ISO 14284:1996) 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 10079 and the following apply. ISO and IEC maintain terminological databases for use in standardization at the following addresses: — IEC Electropedia: available at http://www.electropedia.org/ oSIST prEN 10025-5:2018

prEN 10025-5:2018 (E) 9 — ISO Online browsing platform: available at http://www.iso.org/obp 3.1 normalized rolled rolling process in which the final deformation is carried out in a certain temperature range leading to a material condition equivalent to that obtained after normalizing so that the specified values of the mechanical properties are retained even after normalizing Note 1 to entry: The abbreviated form of this delivery condition is +N. Note 2 to entry: In international publications for both the normalizing rolling, as well as the thermomechanical rolling, the expression “controlled rolling” may be found. However in view of the different applicability of the products a distinction of the terms is necessary. 3.2 as-rolled conventional hot rolling without any normalized rolling or thermomechanical rolling and/or heat treatment condition like normalizing or quenching Note 1 to entry: The abbreviated form of this delivery condition is +AR. 3.3 thermomechanical rolling rolling process in which the final deformation is carried out in a certain temperature range leading to a material condition with certain properties which cannot be achieved or repeated by heat treatment alone Note 1 to entry: The abbreviated form of this delivery condition is +M. Note 2 to entry: Thermomechanical rolling leading to the delivery condition +M can include processes with an increasing cooling rate with or without tempering including self-tempering but excluding direct quenching and quenching and tempering. Note 3 to entry: In some publications the word TMCP (Thermomechanical Control Process) is also used. 3.4 normalizing heat treatment consisting of austenitizing followed by air cooling Note 1 to entry: The abbreviated form of this delivery condition is +N. 3.5 steel with improved atmospheric corrosion resistance steel in which a certain number of alloying elements, such as P, Cu, Cr, Ni, Mo, has been added in order to increase its resistance to atmospheric corrosion, by forming an auto-protective oxide layer on the base metal under the influence of weather conditions Note 1 to entry: Steel with improved atmospheric corrosion resistance is often called weathering steel. Note 2 to entry: Additional information for the use of steel with improved atmospheric corrosion resistance is given in Annex B. oSIST prEN 10025-5:2018

prEN 10025-5:2018 (E) 10 4 Classification and designation 4.1 Classification 4.1.1 Main quality classes The steel grades specified in this document shall be classified as alloy special steels according to EN 10020. 4.1.2 Grades and qualities This document specifies four steel grades S235, S355, S420 and S460. The steel grades may be supplied in different qualities. The qualities differ in specified impact energy requirements (see Table 5). Grade S355 is subdivided into the classes W and WP, which differ mainly in their carbon and phosphorus contents (see Tables 2 and 3) and availability (see Table 1). 4.2 Designation 4.2.1 For the steel grades covered by this document the steel names shall be allocated in accordance with EN 10027-1; the steel numbers shall be allocated in accordance with EN 10027-2. 4.2.2 The designation shall consist of: — number of this document (EN 10025-5); — steel name or the steel number; the steel name consisting of: — symbol S (for structural steel); — indication of the minimum specified yield strength for thickness

¶ 16 mm expressed in MPa; — quality designation (see 4.1.2) in respect of specified impact energy values; — letter W indicating that the steel has an improved atmospheric corrosion resistance; — if applicable, the letter P for the class with a greater phosphorus content (only in the case of grade S355); — the indication “+N”, “+AR” or “+M”, when the products are ordered and delivered in the condition +N, +AR or +M (see 3.1, 3.2, 3.3, 3.4 and 6.3). The indication “+N”, “+AR” or “+M” shall be added to the steel name or steel number. EXAMPLE Structural steel (S) with improved atmospheric corrosion resistance (W), with a specified minimum yield strength at room temperature of 355 MPa with a minimum impact energy of 27 J at 0 °C (J0), delivery condition +N: EN 10025-5 - S355J0W+N

or EN 10025-5 - 1.8959+N oSIST prEN 10025-5:2018

prEN 10025-5:2018 (E) 11 5 Information to be supplied by the purchaser 5.1 Mandatory information The following information shall be supplied by the purchaser at the time of the order: a) quantity to be delivered; b) product form and the number of the standard for dimensions and tolerances(see 2.2); c) nominal dimensions and tolerances on dimensions and shape (see 7.7.1); d) steel designation (see 4.2.2); e) additional requirements of inspection and testing and all required options (see 5.2 and Clause 13); f) type of inspection document according to EN 10204 (see 8.1); 5.2 Options A number of options are specified in Clause 13. In the event that the purchaser does not indicate his wish to implement any of these options, the supplier shall supply in accordance with the basic specification, see 5.1 a) to d) and f). 6 Manufacturing process 6.1 Steel making process The steel making process is at the discretion of the manufacturer with the exclusion of the open hearth (Siemens-Martin) process. See Option 1 (details of manufacturing process). 6.2 Deoxidation and grain structure The deoxidation methods are designated as follows: a) FN - Rimming steel not permitted; b) FF - Fully killed steel containing nitrogen binding elements in amounts sufficient to bind the available nitrogen (for example min. 0,020 % total aluminium). The usual guideline is a minimum aluminium to nitrogen ratio of 2:1, when no other nitrogen binding elements are present. Such other elements shall be reported in the inspection document. The method of deoxidation shall be as given in Table 2. 6.3 Delivery conditions Unless otherwise agreed the delivery condition of products can be +AR, +N or +M at the manufacturer's discretion. See Option 19 (delivery condition +AR, +N or +M). If an inspection document is required (see 8.2) the delivery condition shall be indicated in it with its specific symbol (+AR, +N or +M). In case the products are ordered in the delivery condition +AR, +N or +M the specific symbol (+AR, +N or +M) shall be added to the designation (see 4.2.2). NOTE The requirements on the mechanical properties of the steel grades according to this standard are not depending on the delivery condition. oSIST prEN 10025-5:2018

prEN 10025-5:2018 (E) 12 7 Requirements 7.1 General The requirements in 7.2 and 7.3 apply for sampling, preparation of test pieces and testing specified in Clauses 9 and 10. 7.2 Chemical composition 7.2.1 The chemical composition determined by ladle analysis shall comply with the specified values of Table 2. For elements not defined in the table for the chemical composition for ladle analysis, limit values of Table 1 of EN 10020:2000 shall apply as maximum values. 7.2.2 The limits applicable for the product analysis are given in Table 3. The product analysis shall be carried out when specified at the time of the order. See Option 2 (product analysis). For elements not defined in table for the chemical composition for product analysis, limit values of Table 1 of EN 10020:2000 shall apply as maximum values. 7.2.3 The maximum carbon equivalent values based on the ladle analysis given in Table 2 shall apply. For determining the carbon equivalent value the following IIW (International Institute of Welding) formula shall be used: +++=+++6515CrMoVNiCuMnCEVC 7.3 Mechanical properties 7.3.1 General 7.3.1.1 Under the inspection and testing conditions as specified in Clauses 8, 9 and 10 and in the delivery condition as specified in 6.3 the mechanical properties shall comply with the values given in Tables 4 and 5. Stress relieving at more than 580 °C or for over 1 h may lead to a deter

...

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.RUR]LMLWarmgewalzte Erzeugnisse aus Baustählen - Teil 5: Technische Lieferbedingungen für wetterfeste BaustähleProduits laminés à chaud en aciers de construction - Partie 5 : Conditions techniques de livraison pour les aciers de construction à résistance améliorée à la corrosion atmosphériqueHot rolled products of structural steels - Part 5: Technical delivery conditions for structural steels with improved atmospheric corrosion resistance77.140.50SROL]GHONLFlat steel products and semi-products77.140.10Jekla za toplotno obdelavoHeat-treatable steelsICS:Ta slovenski standard je istoveten z:prEN 10025-5oSIST prEN 10025-5:2014en,fr,de01-julij-2014oSIST prEN 10025-5:2014SLOVENSKI

STANDARD
oSIST prEN 10025-5:2014
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
WHITE DRAFT prEN 10025-5
May 2014 ICS 77.140.10; 77.140.50 Will supersede EN 10025-5:2004English Version

Hot rolled products of structural steels - Part 5: Technical delivery conditions for structural steels with improved atmospheric corrosion resistance

Produits laminés à chaud en aciers de construction - Partie 5 : Conditions techniques de livraison pour les aciers de construction à résistance améliorée à la corrosion atmosphérique

Warmgewalzte Erzeugnisse aus Baustählen - Teil 5: Technische Lieferbedingungen für wetterfeste Baustähle This draft European Standard is submitted to ECISS/COCOR before submission to CEN members for formal vote. It has been drawn up by the Technical Committee ECISS/TC 103.

If this draft becomes a European Standard, CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.

This draft European Standard was established by CEN in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom.

Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and shall not be referred to as a European Standard.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre:
Avenue Marnix 17,

B-1000 Brussels © 2014 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. prEN 10025-5:2014 EoSIST prEN 10025-5:2014

prEN 10025-5:2014 (E) 2 Contents Page Foreword ............................................................................................................................................................. 3 1 Scope ...................................................................................................................................................... 4 2 Normative references ........................................................................................................................... 4 2.1 General standards ................................................................................................................................. 4 2.2 Standards on dimensions and tolerances (see 7.7.1) ....................................................................... 5 2.3 Standards on testing ............................................................................................................................ 5 3 Terms and definitions ........................................................................................................................... 6 4 Classification and designation ............................................................................................................ 7 4.1 Classification ......................................................................................................................................... 7 4.2 Designation ............................................................................................................................................ 7 5 Information to be supplied by the purchaser ..................................................................................... 8 5.1 Mandatory information ......................................................................................................................... 8 5.2 Options ................................................................................................................................................... 8 6 Manufacturing process ......................................................................................................................... 8 6.1 Steel making process ........................................................................................................................... 8 6.2 Deoxidation ............................................................................................................................................ 8 6.3 Delivery conditions ............................................................................................................................... 8 7 Requirements ........................................................................................................................................ 9 7.1 General ................................................................................................................................................... 9 7.2 Chemical composition .......................................................................................................................... 9 7.3 Mechanical properties .......................................................................................................................... 9 7.4 Technological properties ................................................................................................................... 10 7.5 Surface properties .............................................................................................................................. 10 7.6 Internal soundness ............................................................................................................................. 11 7.7 Dimensions, tolerances on dimensions and shape, mass ............................................................. 11 8 Inspection ............................................................................................................................................ 11 8.1 General ................................................................................................................................................. 11 8.2 Type of inspection and inspection document.................................................................................. 12 8.3 Frequency of testing ........................................................................................................................... 12 8.4 Tests to be carried out ........................................................................................................................ 12 9 Preparation of samples and test pieces ........................................................................................... 13 9.1 Selection and preparation of samples for chemical analysis ........................................................ 13 9.2 Location and orientation of samples and test pieces for mechanical tests ................................. 13 9.3 Identification of samples and test pieces ......................................................................................... 13 10 Test methods ....................................................................................................................................... 13 10.1 Chemical analysis ............................................................................................................................... 13 10.2 Mechanical tests ................................................................................................................................. 13 10.3 Ultrasonic testing ................................................................................................................................ 14 10.4 Retests ................................................................................................................................................. 14 11 Marking, labelling, packaging ............................................................................................................ 14 12 Complaints ........................................................................................................................................... 14 13 Options (see 5.2) ................................................................................................................................. 14 Annex A (informative)

Additional information for the use of steel with improved atmospheric corrosion resistance ........................................................................................................................... 22 Annex B (informative)

Notes on fabrication ................................................................................................ 23 Bibliography ..................................................................................................................................................... 24

oSIST prEN 10025-5:2014

prEN 10025-5:2014 (E) 3 Foreword This document (prEN 10025-5:2014) has been prepared by Technical Committee ECISS/TC 103 “Structural steels other then reinforcements”, the secretariat of which is held by DIN. This document is currently submitted to the COCOR Vote. This document will supersede EN 10025-5:2004. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Construction Products Regulation (EU) No 305/2011. For relationship with the EU Construction Products Regulation (EU) No. 305/2011, see informative Annex ZA of prEN 10025-1:2014. The titles of the other parts of this document are: Part 1: General; Part 2: Technical delivery conditions for non-alloy structural steels; Part 3: Technical delivery conditions for normalized/normalized rolled weldable fine grain structural steels; Part 4: Technical delivery conditions for thermomechanical rolled weldable fine grain structural steels; Part 6: Technical delivery conditions for flat products of high yield strength structural steels in the quenched and tempered condition.

oSIST prEN 10025-5:2014

prEN 10025-5:2014 (E) 4 1 Scope Part 5 of this document, in addition to part 1, specifies technical delivery conditions for flat and long products of hot rolled steels with improved atmospheric corrosion resistance in the grades and qualities given in Tables 2 and 3 (chemical composition) and Tables 4 and 5 (mechanical properties) in the usual delivery conditions as given in 6.3. The thicknesses in which products of the steel grades and qualities specified in this document may be supplied are given in Table 1. In addition to prEN 10025-1:2014 the steels specified in this document are especially intended for use in welded, bolted and riveted components which shall have enhanced resistance to atmospheric corrosion, for service at ambient temperatures (subject to the restrictions described in 7.4.1). The steels specified in this Part 5 are not intended to be heat treated except products delivered in the delivery condition +N. Stress relief annealing is permitted (see 7.3.1.1, NOTE). Products delivered in +N condition can be hot formed and/or normalized after delivery (see Clause 3). 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. 2.1 General standards EN 1011-2, Welding – Recommendations for welding of metallic materials – Part 2: Arc welding of ferritic steels EN 10020, Definition and classification of grades of steel EN 10021, General technical delivery conditions for steel products prEN 10025-1:2014, Hot rolled products of structural steels - Part 1: General

EN 10027-1, Designation systems for steels - Part 1: Steel names EN 10027-2, Designation systems for steels - Part 2: Numerical system EN 10079:2007, Definition of steel products EN 10163-1, Delivery requirements for surface condition of hot-rolled steel plates, wide flats and sections – Part 1: General requirements EN 10163-2, Delivery requirements for surface condition of hot-rolled steel plates, wide flats and sections – Part 2: Plates and wide flats EN 10163-3, Delivery requirements for surface condition of hot-rolled steel plates, wide flats and sections – Part 3: Sections EN 10164, Steel products with improved deformation properties perpendicular to the surface of the product - Technical delivery conditions EN 10168, Steel products – Inspection documents – List of information and description EN 10204, Metallic products – Types of inspection documents EN 10221, Surface quality classes for hot-rolled round bars and rods - Technical delivery conditions CEN/TR 10347, Guidance for forming of structural steels in processing oSIST prEN 10025-5:2014

prEN 10025-5:2014 (E) 5 2.2 Standards on dimensions and tolerances (see 7.7.1) EN 10017, Non-alloy steel rod for drawing and/or cold rolling – Dimensions and tolerances EN 10024, Hot rolled taper flange I sections - Tolerances on shape and dimensions EN 10029, Hot rolled steel plates 3 mm thick or above - Tolerances on dimensions and shape EN 10034, Structural steel I and H sections - Tolerances on shape and dimensions EN 10048, Hot rolled narrow steel strip - Tolerances on dimensions and shape EN 10051, Continuously hot-rolled uncoated plate, sheet and strip of non-alloy and alloy steels - Tolerances on dimensions and shape EN 10055, Hot-rolled steel equal flange tees with radiused root and toes - Dimensions and tolerances on shape and dimensions EN 10056-1, Structural steel equal and unequal leg angles - Part 1: Dimensions EN 10056-2, Structural steel equal and unequal leg angles - Part 2: Tolerances on shape and dimensions EN 10058, Hot rolled flat steel bars for general purposes - Dimensions and tolerances on shape and dimensions EN 10059, Hot rolled square steel bars for general purposes - Dimensions and tolerances on shape and dimensions EN 10060, Hot rolled round steel bars - Dimensions and tolerances on shape and dimensions EN 10061, Hot rolled hexagon steel bars - Dimensions and tolerances on shape and dimensions EN 10067, Hot rolled bulb flats - Dimensions and tolerances on shape, dimensions and mass EN 10279, Hot rolled steel channels - Tolerances on shape, dimensions and mass 2.3 Standards on testing EN 10160, Ultrasonic testing of steel flat product of thickness equal to or greater than 6 mm (reflection method) EN 10306, Iron and steel - Ultrasonic testing of H beams with parallel flanges and IPE beams EN 10308, Non-destructive testing - Ultrasonic testing of steel bars EN ISO 148-1, Metallic materials – Chapry pendulum impact test – Part 1: Test method (ISO 148-1:2009) EN ISO 643, Steels – Micrographic determination of the apparent grain size (ISO 643:2003) EN ISO 6892-1, Metallic materials – Tensile testing – Part 1: Method of test at room temperature (ISO 6892-1:2009) EN ISO 14284, Steel and iron – Sampling and preparation of samples for the determination of chemical composition (ISO 14283:1996) oSIST prEN 10025-5:2014

prEN 10025-5:2014 (E) 6 3 Terms and definitions For the purposes of this document, the terms and definitions given in prEN 10025-1:2012 and the following apply. 3.1 normalized rolled rolling process in which the final deformation is carried out in a certain temperature range leading to a material condition equivalent to that obtained after normalizing so that the specified values of the mechanical properties are retained even after normalizing Note

1 to entry The abbreviated form of this delivery condition is +N. Note

2 to entry In international publications for both the normalizing rolling, as well as the thermomechanical rolling, the expression "controlled rolling" may be found. However in view of the different applicability of the products a distinction of the terms is necessary 3.2 as-rolled conventional hot rolling without any normalized rolling or thermomechanical rolling and/or heat treatment condition like normalizing or quenching. Note

1 to entry The abbreviated form of this delivery condition is +AR. 3.3 thermomechanical rolling rolling process in which the final deformation is carried out in a certain temperature range leading to a material condition with certain properties which cannot be achieved or repeated by heat treatment alone Note

1 to entry The abbreviated form of this delivery condition is +M. Note

2 to entry Hot forming or post weld heat treatment at a temperature above 580 oC may lower the strength values and should not be performed. Flame straightening can be applied in accordance with CEN/TR 10347. Note

3 to entry Thermomechanical rolling leading to the delivery condition +M can include processes with an increasing cooling rate with or without tempering including self-tempering but excluding direct quenching and quenching and tempering. Note

4 to entry In some publications the word TMCP (Thermomechanical Control Process) is also used. 3.4 normalizing

heat treatment consisting of austenitizing followed by air cooling Note

1 to entry The abbreviated form of this delivery condition is +N. 3.5 steel with improved atmospheric corrosion resistance steel in which a certain number of alloying elements, such as P, Cu, Cr, Ni, Mo, has been added in order to increase its resistance to atmospheric corrosion, by forming an auto-protective oxide layer on the base metal under the influence of weather conditions Note

1 to entry Steel with improved atmospheric corrosion resistance is often called weathering steel. Note

2 to entry Additional information for the use of steel with improved atmospheric corrosion resistance is given in Annex B. oSIST prEN 10025-5:2014

prEN 10025-5:2014 (E) 7 4 Classification and designation 4.1 Classification 4.1.1 Main quality classes The steel grades specified in this document shall be classified as alloy special steels according to EN 10020. 4.1.2 Grades and qualities This document specifies four steel grades S235, S355, S420 and S460, which differ in their mechanical properties. The steel grades may be supplied in different qualities. The qualities differ in specified impact energy requirements (see Table 5). Grade S355 is subdivided into the classes W and WP, which differ mainly in their carbon and phosphorus contents (see Tables 2 and 3) and availability (see Table 1). 4.2 Designation 4.2.1 The designation shall be in accordance with prEN 10025-1. 4.2.2 The designation shall consist of:  number of this document (prEN 10025-5);  steel name or the steel number; the steel name consisting of:  symbol S (for structural steel);  indication of the minimum specified yield strength for thickness ≤ 16 mm expressed in MPa1);  quality designation (see 4.1.2) in respect of specified impact energy values;  letter W indicating that the steel has an improved atmospheric corrosion resistance;  if applicable, the letter P for the class with a greater phosphorus content (only in the case of grade S355);  the indication "+N, +AR or +M", when the products are ordered and delivered in the condition +N, +AR or +M (see 3.1, 3.2, 3.3, 3.4 and 6.3). The indication "+N, +AR or +M" shall be added to the steel name or steel number. EXAMPLE Structural steel (S) with improved atmospheric corrosion resistance (W), with a specified minimum yield strength at room temperature of 355 MPa1) with a minimum impact energy value of 27 J at 0 ºC (J0), delivery condition +N:

Steel prEN 10025-5 - S355J0W+N
Steel prEN 10025-5 - 1.8959+N
1) 1 MPa = 1 N/mm2. oSIST prEN 10025-5:2014

prEN 10025-5:2014 (E) 8 5 Information to be supplied by the purchaser 5.1 Mandatory information The following information shall be supplied by the purchaser at the time of the order: a) quantity to be delivered; b) product form; c) number of the relevant part of this document; d) steel name or the steel number (see 4.2.2); e) nominal dimensions and tolerances on dimensions and shape (see 7.7.1); f) additional requirements of inspection and testing as specified in prEN 10025-5; g) whether products have to be submitted to specific or non-specific inspection and testing and which inspection document is required according to EN 10204 (see 8.2); h) all required options (see 5.2); 5.2 Options A number of options are specified in Clause 13. In the event that the purchaser does not indicate his wish to implement any of these options, the supplier shall supply in accordance with the basic specification. 6 Manufacturing process 6.1 Steel making process The steel making process is at the discretion of the manufacturer with the exclusion of the open hearth (Siemens-Martin) process. See option 1. 6.2 Deoxidation 6.2.1 The method of deoxidation shall be as given in Table 2. 6.2.2 The deoxidation methods are designated as follows: a) FN - Rimming steel not permitted; b) FF - Fully killed steel containing nitrogen binding elements in amounts sufficient to bind the available nitrogen (for example min. 0,020 % total aluminium). The usual guideline is a minimum aluminium to nitrogen ratio of 2:1, when no other nitrogen binding elements are present. Such other elements shall be reported in the inspection document. 6.3 Delivery conditions Unless otherwise agreed the delivery condition of products can be +AR, +N or +M at the manufacturer's discretion. The delivery condition +AR, +N or +M can be ordered.

See option 19a. If an inspection document is required (see 8.2) the delivery condition shall be indicated in it with its specific symbol (+N, +AR or +M). In case the products are ordered in the delivery condition +N, +AR or +M the specific symbol (+N, +AR or +M) shall be added to the designation (see 4.2.2). oSIST prEN 10025-5:2014

prEN 10025-5:2014 (E) 9 7 Requirements 7.1 General The following requirements apply when sampling, preparation of test pieces and testing specified in Clauses 8, 9 and 10 are carried out. 7.2 Chemical composition 7.2.1 The chemical composition determined by ladle analysis shall comply with the specified values of Table 2. For elements not defined in tables for the chemical composition for ladle analysis, limit values of Table 1 of

EN 10020:2000 shall apply as maximum values. 7.2.2 The limits applicable for the product analysis are given in Table 3. The product analysis shall be carried out when specified at the time of the order. See option 2. For elements not defined in tables for the chemical composition for product analysis, limit values of Table 1 of

EN 10020:2000 shall apply as maximum values. 7.2.3 The maximum carbon equivalent values based on the ladle analysis given in Table 2 shall apply. For the carbon equivalent value formula see prEN 10025-1:2014, 4.4. 7.3 Mechanical properties 7.3.1 General 7.3.1.1 Under the inspection and testing conditions as specified in Clauses 8, 9 and 10 and in the delivery condition as specified in 6.3 the mechanical properties shall comply with the values given in Tables 4 and 5. NOTE Stress relieving at more than 580 °C or for over 1 h may lead to a deterioration of the mechanical properties of the steel grade as defined in prEN 10025-5. For normalized and normalized rolled flat products the maximum stress relief temperature should be 560 °C. If the purchaser intends to stress relief the products at higher temperatures or for longer times than mentioned above the minimum values of the mechanical properties after such a treatment should be agreed at the time of the order. 7.3.1.2 For flat and bar products ordered and supplied in the normalized or normalized rolled condition the mechanical properties shall comply with the relevant tables for mechanical properties of prEN 10025-5 in the normalized or normalized rolled condition or after normalizing by heat treatment after delivery or after hot forming if the provisions of CEN/TR 10347 are satisfied. 7.3.1.3 For flat products the nominal thickness applies. For long products of irregular section the nominal thickness of that part from which the samples are taken applies (see Annex A of prEN 10025-1:2014). 7.3.2 Impact properties 7.3.2.1 The verification of the impact energy value shall be carried out in accordance with prEN 10025-1. 7.3.2.2 The impact properties of steel grade S355 class WP are verified only when specified at the time of the order. See option 3. oSIST prEN 10025-5:2014

prEN 10025-5:2014 (E) 10 7.3.2.2 For products of quality J2, J4 and K2 with nominal thickness < 6 mm the ferritic grain size shall be ≥ 6, verified by the method as described in EN ISO 643, if specified at the time of the order. See option 21. When aluminium is used as the grain refining element, the grain size requirement shall be deemed to be fulfilled if on ladle analysis the aluminium content is not less than 0,020 % total aluminium or alternatively, 0,015 % acid soluble aluminium. In this case verification of the grain size is not required, but the aluminium content shall be indicated in the inspection document. 7.3.3 Improved deformation properties perpendicular to the surface If agreed at the time of the order products shall comply with one of the requirements of EN 10164. See option 4. 7.4 Technological properties 7.4.1 Weldability 7.4.1.1 The steels specified in this document do not have unlimited suitability for the various welding processes, since the behaviour of a steel during and after welding depends not only on the material but also on the dimensions and shape and on the manufacturing and service conditions of the components. 7.4.1.2 In Annex B more information on weldability may be found. 7.4.2 Formability and flame straightening NOTE Recommendations regarding hot forming, cold forming and flame straightening are laid down in CEN/TR 10347. 7.4.2.1 Hot forming Only products ordered and supplied in the normalized or normalized rolled condition shall comply with the requirements of Tables 4 and 5 if hot forming is carried out after delivery (see 7.3.1.2). NOTE For thermomechanical rolled steels hot forming or post weld heat treatment at a temperature above 580°C may lower the strength values and should not be performed. Flame straightening can be applied in accordance with CEN/TR 10347 7.4.2.2 Cold formability 7.4.2.2.1 General NOTE Cold forming leads to reduction in the ductility. 7.4.2.2.2 Flangeability If specified at the time of the order plate, sheet, strip, wide flats and flats (width < 150 mm) with a nominal thickness ≤ 20 mm shall be suitable for flanging without cracking with the minimum recommended bend radii given in Table 6. The grades and qualities to which this applies are given in Table 6.

See option 11c." 7.5 Surface properties 7.5.1 Strip The surface condition should not impair an application appropriate to the steel grade if adequate processing of the strip is applied. oSIST prEN 10025-5:2014

prEN 10025-5:2014 (E) 11 7.5.2 Plates and wide flats EN 10163 parts 1 and 2 shall apply for the permissible surface discontinuities and for the repair of surface defects by grinding and/or welding. Class A, subclass 1 of EN 10163-2 shall apply, unless otherwise agreed at the time of the order. See option 15. 7.5.3 Sections EN 10163 parts 1 and 3 shall apply for the permissible surface discontinuities and for the repair of surface defects by grinding and/or welding. Class C, subclass 1 of EN 10163-3 shall apply, unless otherwise agreed at the time of the order. See option 16. 7.5.4 Bars and rods EN 10221 applies for the permissible surface discontinuities and for the repair of surface defects by grinding and/or welding. Class A of EN 10221 shall apply, unless otherwise agreed at the time of the order. See option 17. 7.6 Internal soundness Ultrasonic testing may be agreed at the time of the order and shall comply with 10.3. See option 6 (for flat products). See option 7 (for H beams with parallel flanges and IPE beams). See option 8 (for bars). 7.7 Dimensions, tolerances on dimensions and shape, mass 7.7.1 Dimensions, tolerances on dimensions and shape shall be in accordance with the requirements given in the order by reference to the relevant documents according to 2.2 and according to prEN 10025-1:2014, 2.2 and 4.2. For hot rolled plate tolerances the basic requirements shall be in accordance with EN 10029, including thickness tolerances to class A, unless otherwise agreed at the time of the order. See option 18. For plates cut from continuously hot rolled strip, the thickness tolerances shall be in accordance with EN 10051. 7.7.2 The nominal mass shall be determined from the nominal dimensions using a volumetric mass of 7 850 kg/m³. 8 Inspection 8.1 General The products shall be delivered either with specific or non-specific inspection and testing to indicate compliance wi

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