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
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 korozijiHot rolled products of structural steels - Part 5: Technical delivery conditions for structural
steels with improved atmospheric corrosion resistanceWarmgewalzte 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 corrosionatmosphérique
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
---------------------- Page: 2 ----------------------
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 Baustählecorrosion 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
---------------------- Page: 4 ----------------------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 improvedatmospheric 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
---------------------- Page: 5 ----------------------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 conditionFor 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.---------------------- Page: 7 ----------------------
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 thicknessDesignation 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).---------------------- Page: 8 ----------------------
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 tolerancesEN 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 namesEN 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 dimensionsEN 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 shapeEN 10055, Hot rolled steel equal flange tees with radiused root and toes — Dimensions and tolerances on
shape and dimensionsEN 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 dimensionsEN 10059, Hot rolled square steel bars for general purposes — Dimensions and tolerances on shape and
dimensionsEN 10060, Hot rolled round steel bars for general purposes — Dimensions and tolerances on shape and
dimensionsEN 10061, Hot rolled hexagon steel bars for general purposes — Dimensions and tolerances on shape and
dimensionsEN 10067, Hot rolled bulb flats — Dimensions and tolerances on shape, dimensions and mass
EN 10079, Definition of steel productsEN 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 requirementsEN 10163-2, Delivery requirements for surface condition of hot-rolled steel plates, wide flats and sections
— Part 2: Plate and wide flatsEN 10163-3, Delivery requirements for surface condition of hot-rolled steel plates, wide flats and sections
— Part 3: SectionsEN 10164, Steel products with improved deformation properties perpendicular to the surface of the
product — Technical delivery conditionsEN 10168, Steel products — Inspection documents — List of information and description
EN 10204, Metallic products — Types of inspection documentsEN 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 barsEN 10315, Routine method for analysis of high alloy steel by X-ray Fluorescence Spectrometry (XRF) by
using a near by techniqueCR 10320, Optical emission analysis of low alloy steels (routine method) — Method for determination of C,
Si, S, P, Mn, Cr, Ni and CuCEN/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 shapeEN 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)---------------------- Page: 10 ----------------------
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 normalizingNote 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 quenching3.3
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
aloneNote 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.
3.4normalizing
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 conditionsNote 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.---------------------- Page: 11 ----------------------
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
---------------------- Page: 12 ----------------------
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 usualguideline 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...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.