SIST EN 10025-5:2019
(Main)Hot rolled products of structural steels - Part 5: Technical delivery conditions for structural steels with improved atmospheric corrosion resistance
Hot rolled products of structural steels - Part 5: Technical delivery conditions for structural steels with improved atmospheric corrosion resistance
Part 5 of this document, in addition to part 1, specifies requirements 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 EN 10025-1:2004 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 also the NOTE in 7.3.1.1 of EN 10025-1:2004). 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
Relations
Buy Standard
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.
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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.
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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
2
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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
3
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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;
4
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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.
5
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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).
6
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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)
7
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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)
8
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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
+N
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
+M
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
+N
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.
9
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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
Or
EN 10025-5 - 1.8959+N
10
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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
...
SLOVENSKI STANDARD
oSIST prEN 10025-5:2018
01-september-2018
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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: prEN 10025-5
ICS:
77.140.10 Jekla za toplotno obdelavo Heat-treatable steels
77.140.50 3ORãþDWLMHNOHQLL]GHONLLQ Flat steel products and semi-
SROL]GHONL products
oSIST prEN 10025-5:2018 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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oSIST prEN 10025-5:2018
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oSIST prEN 10025-5:2018
DRAFT
EUROPEAN STANDARD
prEN 10025-5
NORME EUROPÉENNE
EUROPÄISCHE NORM
June 2018
ICS 77.140.10; 77.140.50 Will supersede 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 draft European Standard is submitted to CEN members for second enquiry. 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, Serbia, 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: Rue de la Science 23, B-1040 Brussels
© 2018 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 10025-5:2018 E
worldwide for CEN national Members.
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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
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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
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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;
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g) Annex B deleted;
h) references were updated and document editorial revised.
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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 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 1.8913 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 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.
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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
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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/
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— 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.
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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
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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.
11
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...
SLOVENSKI STANDARD
oSIST prEN 10025-5:2014
01-julij-2014
9URþHYDOMDQLL]GHONLL]NRQVWUXNFLMVNLKMHNHOGHO 7HKQLþQLGREDYQLSRJRML]D
NRQVWUXNFLMVNDMHNOD]L]EROMãDQRRGSRUQRVWMRSURWLDWPRVIHUVNLNRUR]LML
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: prEN 10025-5
ICS:
77.140.10 Jekla za toplotno obdelavo Heat-treatable steels
77.140.50 3ORãþDWLMHNOHQLL]GHONLLQ Flat steel products and semi-
SROL]GHONL products
oSIST prEN 10025-5:2014 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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oSIST prEN 10025-5:2014
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oSIST prEN 10025-5:2014
EUROPEAN STANDARD
WHITE DRAFT
prEN 10025-5
NORME EUROPÉENNE
EUROPÄISCHE NORM
May 2014
ICS 77.140.10; 77.140.50 Will supersede 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 - Partie Warmgewalzte Erzeugnisse aus Baustählen - Teil 5:
5 : Conditions techniques de livraison pour les aciers de Technische Lieferbedingungen für wetterfeste Baustähle
construction à résistance améliorée à la corrosion
atmosphérique
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 Ref. No. prEN 10025-5:2014 E
worldwide for CEN national Members.
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prEN 10025-5:2014 (E)
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
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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.
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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
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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)
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oSIST prEN 10025-5:2014
prEN 10025-5:2014 (E)
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.
o
Note 2 to entry 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.
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.
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prEN 10025-5:2014 (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, 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);
)
1
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
1)
strength at room temperature of 355 MPa with a minimum impact energy value of 27 J at 0 ºC (J0), delivery condition +N:
Steel prEN 10025-5 - S355J0W+N
or
Steel prEN 10025-5 - 1.8959+N
) 2
1
1 MPa = 1 N/mm .
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prEN 10025-5:2014 (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;
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).
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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.
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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.
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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 a
...
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