Hot rolled products of structural steels - Part 2: Technical delivery conditions for non-alloy structural steels

Part 2 of this document, in addition to Part 1, specifies the technical delivery conditions for flat and long products and semi-finished products which are meant for further processing to flat and long products of hot rolled non-alloy quality steels in the grades and qualities given in Tables 2 to 6 (chemical composition) and Tables 7 to 9 (mechanical properties) in the delivery conditions as given in 6.3. Three engineering steels are also specified in this document (see Tables 3 and 5) (chemical composition) and Table 8 (mechanical properties). This document does not apply to structural hollow sections and tubes (see EN 10210-1 and EN 10219-1).
The technical delivery conditions apply to thicknesses > 3 mm and < 150 mm for long products of steel grade S450J0. The technical delivery conditions apply to thicknesses < 250 mm for flat and long products of all other grades and qualities. In addition for flat products of qualities J2 and K2 the technical conditions apply to thicknesses < 400 mm.
Products made of steel grades S185, E295, E335 and E360 cannot be CE marked.
The steels specified in this Part 2 are not intended to be heat treated except products delivered in 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).
NOTE 1   Semi-finished products which are to be converted to rolled finished products conforming to this document should be the subject of special agreement at the time of the enquiry and order. The chemical composition can also be agreed at the time of the order, however the values should be within the limits of Tables 2 and 3.
NOTE 2   For certain grades and product forms suitability for particular applications may be specified at the time of the enquiry and order (see 7.4.2, 7.4.3 and Table 10).

Warmgewalzte Erzeugnisse aus Baustählen - Teil 2: Technische Lieferbedingungen für unlegierte Baustähle

Dieses Dokument legt die technischen Lieferbedingungen für Flach- und Langerzeugnisse sowie für zur Weiterverarbeitung zu Flach- und Langerzeugnissen vorgesehenes Halbzeug aus warmgewalzten unlegierten Qualitätsstählen in den Sorten und Gütegruppen nach den Tabellen 1 bis 5 (chemische Zusammensetzung) und den Tabellen 6 bis 8 (mechanische Eigenschaften) in den in 6.3 angegebenen Lieferzuständen fest. Drei Maschinenbaustähle sind ebenfalls in diesem Dokument enthalten (siehe Tabellen 2 und 4) (chemische Zusammensetzung) und Tabelle 7 (mechanische Eigenschaften). Dieses Dokument gilt nicht für Hohlprofile für das Bauwesen (siehe EN 10210-1 und EN 10219-1) und Rohre.
Die technischen Lieferbedingungen gelten für:
-   Dicken ≥ 3 mm und ≤ 150 mm für Langerzeugnisse aus den Stahlsorten S460JR, S460J0, S460J2, S460K2 und S500J0;
-   Dicken ≤ 400 mm für Flacherzeugnisse aus Gütegruppen JR, J0, J2 und K2;
-   Dicken ≤ 250 mm für Flach- und Langerzeugnisse aus allen übrigen Sorten und Gütegruppen.
Die in diesem Dokument spezifizierten Stähle sind nicht für eine Wärmebehandlung vorgesehen. Ausgenommen davon sind Erzeugnisse, die im Lieferzustand +N geliefert werden. Spannungsarmglühen ist zulässig. Erzeugnisse im Lieferzustand +N können nach der Lieferung warm umgeformt und/oder normalgeglüht werden (siehe Abschnitt 3).
Die Anwendung auf Halbzeug zur Herstellung von Walzstahlfertigerzeugnissen nach diesem Dokument sollte zum Zeitpunkt der Bestellung besonders vereinbart werden. Zum Zeitpunkt der Bestellung können auch besondere Vereinbarungen über die chemische Zusammensetzung im Rahmen der in den Tabellen 1 und 2 festgelegten Grenzwerte getroffen werden.
Bei bestimmten Stahlsorten und Erzeugnisformen darf die Eignung für besondere Verwendung zum Zeitpunkt der Bestellung vereinbart werden (siehe 7.4.2, 7.4.3 und Tabelle 9).

Produits laminés à chaud en aciers de construction - Partie 2 : Conditions techniques de livraison pour les aciers de construction non alliés

Le présent document spécifie les conditions techniques de livraison des produits plats et longs et des demi-produits destinés à être transformés en produits plats et longs en aciers non alliés de qualité laminés à chaud, dans les nuances et qualités données dans les Tableaux 1 à 5 (composition chimique) et les Tableaux 6 à 8 (caractéristiques mécaniques), dans les conditions de livraison habituelles spécifiées en 6.3. Trois aciers de construction mécanique sont également spécifiés dans le présent document (voir Tableaux 2 et 4) (composition chimique) et Tableau 7 (caractéristiques mécaniques)). Le présent document ne s’applique pas aux profils creux de construction (voir EN 10210-1 et EN 10219-1) et aux tubes.
Les conditions techniques de livraison s'appliquent aux :
-   épaisseurs ≥ 3 mm et ≤ 150 mm pour les produits longs des nuances d'acier S460JR, J0, J2, K2 et S500J0 ;
-   épaisseurs ≤ 400 mm pour les produits plats des qualités JR, J0, J2 et K2 ;
-   épaisseurs ≤ 250 mm pour les produits plats et longs de toutes les autres nuances et qualités.
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. La relaxation des contraintes est admise. Les produits livrés à l'état +N peuvent être formés à chaud et/ou normalisés après livraison (voir Article 3).
Le présent document prévoit que les demi-produits, qui doivent être transformés en produits finis laminés conformes au présent document, fassent l'objet d'un accord particulier au moment de la commande. La composition chimique peut également faire l'objet d'un accord au moment de la commande, toutefois il convient que les valeurs soient dans les limites indiquées dans les Tableaux 1 et 2.
Pour certaines nuances et formes de produits, l'aptitude à des applications particulières sont spécifiées au moment de la commande, (voir 7.4.2 et 7.4.3 et Tableau 9).

Vroče valjani izdelki iz konstrukcijskih jekel - 2. del: Tehnični dobavni pogoji za nelegirana konstrukcijska jekla

2. del tega dokumenta poleg 1. dela določa tehnične dobavne pogoje za ploske in dolge izdelke ter polizdelke, ki so namenjeni nadaljnji predelavi v ploske in dolge vroče valjane izdelke iz nelegiranega jekla v razredih ter z lastnostmi, podanimi v preglednicah od 2 do 6 (kemična sestava) in preglednicah od 7 do 9 (mehanske lastnosti) v dobavnih pogojih, ki so podani v točki 6.3. V tem dokumentu so podana tudi tri inženirska jekla (glej preglednici 3 in 5 (kemična sestava) ter preglednico 8 (mehanske lastnosti)). Ta dokument se ne uporablja za votle konstrukcijske profile in cevi (glej standarda EN 10210-1 in EN 10219-1).
Tehnični dobavni pogoji veljajo za debeline > 3 mm in < 150 mm za dolge izdelke iz jekla razreda S450J0. Tehnični dobavni pogoji veljajo za debeline < 250 mm za ploske in dolge izdelke iz jekla ostalih razredov in kakovosti. Poleg tega, da tehnični pogoji veljajo za ploske izdelke kakovosti J2 in K2, veljajo tudi za debeline < 400 mm.
Izdelki iz jekla razredov S185, E295, E335 in E360 ne smejo biti označeni z oznako CE.
Jekla iz tega 2. 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).
OPOMBA 1:   Polizdelki, ki jih je treba pretvoriti v valjane končne izdelke v skladu s tem dokumentom, naj bi bili v času povpraševanja in naročila predmet posebnega dogovora. O kemični sestavi se je prav tako mogoče dogovoriti v času naročila, vendar naj bi bile vrednosti v mejah, določenih v preglednicah 2 in 3.
OPOMBA 2:   Pri nekaterih razredih in oblikah izdelkov se lahko primernost uporabe določi v času povpraševanja in naročila (glej 7.4.2, 7.4.3 in preglednico 10).

General Information

Status
Published
Public Enquiry End Date
05-Sep-2018
Publication Date
02-Sep-2019
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
21-Aug-2019
Due Date
26-Oct-2019
Completion Date
03-Sep-2019

RELATIONS

Buy Standard

Standard
SIST EN 10025-2:2019
English language
41 pages
sale 10% off
Preview
sale 10% off
Preview

e-Library read for
1 day
Draft
oSIST prEN 10025-2:2018
English language
41 pages
sale 10% off
Preview
sale 10% off
Preview

e-Library read for
1 day

Standards Content (sample)

SLOVENSKI STANDARD
SIST EN 10025-2:2019
01-oktober-2019
Nadomešča:
SIST EN 10025-2:2005
SIST EN 10025-2:2005/AC:2005

Vroče valjani izdelki iz konstrukcijskih jekel - 2. del: Tehnični dobavni pogoji za

nelegirana konstrukcijska jekla

Hot rolled products of structural steels - Part 2: Technical delivery conditions for non-alloy

structural steels

Warmgewalzte Erzeugnisse aus Baustählen - Teil 2: Technische Lieferbedingungen für

unlegierte Baustähle

Produits laminés à chaud en aciers de construction - Partie 2 : Conditions techniques de

livraison pour les aciers de construction non alliés
Ta slovenski standard je istoveten z: EN 10025-2:2019
ICS:
77.140.10 Jekla za toplotno obdelavo Heat-treatable steels
77.140.45 Nelegirana jekla Non-alloyed steels
77.140.50 Ploščati jekleni izdelki in Flat steel products and semi-
polizdelki products
SIST EN 10025-2:2019 en,fr,de

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

---------------------- Page: 1 ----------------------
SIST EN 10025-2:2019
---------------------- Page: 2 ----------------------
SIST EN 10025-2:2019
EN 10025-2
EUROPEAN STANDARD
NORME EUROPÉENNE
August 2019
EUROPÄISCHE NORM
ICS 77.140.10; 77.140.45; 77.140.50 Supersedes EN 10025-2:2004
English Version
Hot rolled products of structural steels - Part 2: Technical
delivery conditions for non-alloy structural steels

Produits laminés à chaud en aciers de construction - Warmgewalzte Erzeugnisse aus Baustählen - Teil 2:

Partie 2 : Conditions techniques de livraison pour les Technische Lieferbedingungen für unlegierte

aciers de construction non alliés Baustähle
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 10025-2:2019 E

worldwide for CEN national Members.
---------------------- Page: 3 ----------------------
SIST EN 10025-2:2019
EN 10025-2:2019 (E)
Contents Page

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

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

2 Normative references .................................................................................................................................... 6

3 Terms and definitions ................................................................................................................................... 8

4 Classification and designation ................................................................................................................... 9

4.1 Classification .................................................................................................................................................... 9

4.1.1 Main quality classes ....................................................................................................................................... 9

4.1.2 Grades and qualities ...................................................................................................................................... 9

4.2 Designation ....................................................................................................................................................... 9

5 Information to be supplied by the purchaser ....................................................................................... 9

5.1 Mandatory information ................................................................................................................................ 9

5.2 Options .............................................................................................................................................................. 10

6 Manufacturing process ............................................................................................................................... 10

6.1 Steel making process ................................................................................................................................... 10

6.2 Deoxidation ..................................................................................................................................................... 10

6.3 Delivery conditions ...................................................................................................................................... 10

7 Requirements ................................................................................................................................................. 11

7.1 General ............................................................................................................................................................. 11

7.2 Chemical composition ................................................................................................................................. 11

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

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

7.3.2 Impact properties ......................................................................................................................................... 12

7.3.3 Improved deformation properties perpendicular to the surface ............................................... 12

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

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

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

7.4.3 Hot-dip zinc-coating ..................................................................................................................................... 14

7.4.4 Machinability .................................................................................................................................................. 14

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 ................................................................................................................................................. 15

7.6 Internal soundness ....................................................................................................................................... 15

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 ............................................................................................................. 16

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 ................................................................................................ 17

9.2.1 Selection and preparation of samples for chemical analysis ........................................................ 17

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

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

---------------------- Page: 4 ----------------------
SIST EN 10025-2:2019
EN 10025-2:2019 (E)

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 ...................................................................................................................................................... 19

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

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

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

12 Complaints ...................................................................................................................................................... 20

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

Annex A (normative) Location of samples and test pieces ........................................................................... 36

Annex B (informative) List of Options of EN 10025-2 to −6 ......................................................................... 39

Bibliography ................................................................................................................................................................. 41

---------------------- Page: 5 ----------------------
SIST EN 10025-2:2019
EN 10025-2:2019 (E)
European foreword

This document (EN 10025-2:2019) has been prepared by Technical Committee CEN/TC 459/SC 3

“Structural steels other than reinforcement”, 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 10025-2:2004.

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 2 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 used together;
c) requirements for elements not definded were added to 7.2.1 and 7.2.2;
d) Option 33 was added, Options 9 and 21 were deleted;
e) Si-content in 7.2.5 was changed;
f) 7.4.3 concerning hot-dip zinc coating was modified;
---------------------- Page: 6 ----------------------
SIST EN 10025-2:2019
EN 10025-2:2019 (E)
g) key to Figure A.1 was updated;
h) steel grade S450 was deleted and steel grades S460 and S500 were added;
i) Annex B concerning the corresponding EURONORMS was deleted;
j) references were updated and the document was editorially 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 10025-2:2019
EN 10025-2:2019 (E)
1 Scope

This document specifies the technical delivery conditions for flat and long products as well as semi-

finished products which are meant for further processing to flat and long products of hot rolled non-

alloy quality steels in the grades and qualities given in Tables 1 to 5 (chemical composition) and Tables

6 to 8 (mechanical properties) in the usual delivery conditions as given in 6.3. Three engineering steels

are also specified in this document (see Tables 2 and 4) (chemical composition) and Table 7

(mechanical properties). This document does not apply to structural hollow sections (see EN 10210-1

and EN 10219-1) and tubes.
The technical delivery conditions apply to:

— thicknesses ≥ 3 mm and ≤ 150 mm for long products of steel grade S460JR, J0, J2, K2 and S500J0;

— thicknesses ≤ 400 mm for flat products of qualities JR, J0, J2 and K2;

— thicknesses ≤ 250 mm for flat and long products of all other grades and qualities.

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).

This document foresees that semi-finished products which are to be converted to rolled finished

products conforming to this document are the subject of special agreements at the time of the order.

The chemical compositions are also agreed to at the time of the order; the values are within the limits of

Tables 1 and 2.

For certain grades and product forms suitability for particular applications are specified at the time of

the order (see 7.4.2, 7.4.3 and Table 9).
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 1011-2, Welding — Recommendations for welding of metallic materials — Part 2: Arc welding of

ferritic steels
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
---------------------- Page: 8 ----------------------
SIST EN 10025-2:2019
EN 10025-2:2019 (E)

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)

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
---------------------- Page: 9 ----------------------
SIST EN 10025-2:2019
EN 10025-2:2019 (E)

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)

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 14713-2:2009, Zinc coatings — Guidelines and recommendations for the protection against

corrosion of iron and steel in structures — Part 2: Hot dip galvanizing (ISO 14713-2:2009)

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)
3 Terms and definitions

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

apply.

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

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

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

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

mechanical properties are retained even after normalizing

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

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

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

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

treatment like normalizing or quenching
3.3
thermomechanical rolling

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

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

alone

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

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

quenching and tempering.

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

---------------------- Page: 10 ----------------------
SIST EN 10025-2:2019
EN 10025-2:2019 (E)
3.4
Normalizing
heat treatment consisting of austenitizing followed by air cooling
4 Classification and designation
4.1 Classification
4.1.1 Main quality classes

The steel grades specified in this document shall be classified as non-alloy quality steels according to

EN 10020.
4.1.2 Grades and qualities

This document specifies nine steel grades S185, S235, S275, S355, S460, S500, E295, E335 and E360.

The steel grades S235 and S275 may be supplied in qualities JR, J0 and J2. The steel grades S355 and

S460 may be supplied in qualities JR, J0, J2 and K2. The steel grade S500 may be supplied in quality J0.

The qualities differ in specified impact energy requirements.

For steel grades S185, E295 to E360 no requirements for impact energy are specified.

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 10025-2);
— the steel name or the steel number; the steel name consisting of:
— symbol S (for structural steel) or E (for engineering steel);

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

— if applicable, the quality designation (see 4.1.2) in respect of specified impact energy values;

— if applicable, the additional symbol C for the suitability for the particular application (see

Tables 9, 10, 11 and 12);

— 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 also be added to

the steel name or the steel number.

EXAMPLE Structural steel (S) with a specified minimum yield strength at room temperature of 355 MPa with

a minimum impact energy of 27 J at 0 °C (J0) and suitable for cold flanging (C), delivery condition +N (Option 19,

see Clause 13):
EN 10025-2 - S355J0C+N
EN 10025-2 - 1.0554+N
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:

---------------------- Page: 11 ----------------------
SIST EN 10025-2:2019
EN 10025-2:2019 (E)
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) Optional Method at the manufacturer's discretion;
b) FN Rimming steel not permitted;

c) 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 Tables 1 and 2.
6.3 Delivery conditions

Unless otherwise agreed upon, the delivery condition of long products and hot rolled strip can be +AR,

+N or +M at the manufacturer's discretion; the delivery condition for quarto plates can only be +AR or

+N at the manufacturer's discretion.

See Option 19, Clause 13, (delivery condition +AR, +N or +M for long products and strip, +AR, +N for

quarto plates).

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 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 d

...

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Warmgewalzte Erzeugnisse aus Baustählen - Teil 2: Technische Lieferbedingungen für unlegierte BaustähleProduits laminés à chaud en aciers de construction - Partie 2 : Conditions techniques de livraison pour les aciers de construction non alliésHot rolled products of structural steels - Part 2: Technical delivery conditions for non-alloy structural steels77.140.50SROL]GHONLFlat steel products and semi-products77.140.45Nelegirana jeklaNon-alloyed steels77.140.10Jekla za toplotno obdelavoHeat-treatable steelsICS:Ta slovenski standard je istoveten z:prEN 10025-2oSIST prEN 10025-2:2018en,fr,de01-september-2018oSIST prEN 10025-2:2018SLOVENSKI

STANDARD
oSIST prEN 10025-2:2018
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
DRAFT prEN 10025-2
June
t r s z ICS
y yä s v rä s râ
y yä s v rä v wâ
y yä s v rä w r Will supersede EN
s r r t wæ tã t r r vEnglish Version
Hot rolled products of structural steels æ Part

tã Technical delivery conditions for nonæalloy structural steels Produits laminés à chaud en aciers de construction æ Partie

t ã Conditions techniques de livraison pour les aciers de construction non alliés

Warmgewalzte Erzeugnisse aus Baustählen æ Teil

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

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

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

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

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

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

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

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

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

s r r t wæ tã t r s z EoSIST prEN 10025-2:2018

prEN 10025-2:2018 (E) 2 Contents Page European foreword ....................................................................................................................................................... 4 1 Scope .................................................................................................................................................................... 6 2 Normative references .................................................................................................................................... 6 2.1 General standards ........................................................................................................................................... 6 2.2 Standards on dimensions and tolerances .............................................................................................. 7 2.3 Standards on testing ...................................................................................................................................... 8 3 Terms and definitions ................................................................................................................................... 8 4 Classification and designation .................................................................................................................... 9 4.1 Classification ..................................................................................................................................................... 9 4.1.1 Main quality classes ....................................................................................................................................... 9 4.1.2 Grades and qualities ...................................................................................................................................... 9 4.2 Designation........................................................................................................................................................ 9 5 Information to be supplied by the purchaser .................................................................................... 10 5.1 Mandatory information ............................................................................................................................. 10 5.2 Options ............................................................................................................................................................. 10 6 Manufacturing process ............................................................................................................................... 10 6.1 Steel making process .................................................................................................................................. 10 6.2 Deoxidation and grain structure ............................................................................................................ 10 6.3 Delivery conditions ..................................................................................................................................... 11 7 Requirements ................................................................................................................................................ 11 7.1 General ............................................................................................................................................................. 11 7.2 Chemical composition ................................................................................................................................ 11 7.3 Mechanical properties ................................................................................................................................ 12 7.3.1 General ............................................................................................................................................................. 12 7.3.2 Impact properties ........................................................................................................................................ 12 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 7.4.3 Hot-dip zinc-coating .................................................................................................................................... 14 7.4.4 Machinability ................................................................................................................................................. 14 7.5 Surface properties ....................................................................................................................................... 15 7.5.1 Strip ................................................................................................................................................................... 15 7.5.2 Plates and wide flats ................................................................................................................................... 15 7.5.3 Sections ............................................................................................................................................................ 15 7.5.4 Bars and rods ................................................................................................................................................. 15 7.6 Internal soundness ...................................................................................................................................... 15 7.7 Dimensions, tolerances on dimensions and shape, mass .............................................................. 15 8 Inspection ....................................................................................................................................................... 16 8.1 General ............................................................................................................................................................. 16 8.2 Type of inspection and inspection document .................................................................................... 16 8.3 Tests to be carried out for specific inspection ................................................................................... 16 9 Frequency of testing and preparation of samples and test pieces ............................................. 17 oSIST prEN 10025-2:2018

prEN 10025-2:2018 (E) 3 9.1 Frequency of testing .................................................................................................................................... 17 9.1.1 Chemical analysis ......................................................................................................................................... 17 9.1.2 Mechanical tests ............................................................................................................................................ 17 9.2 Preparation of samples and test pieces ................................................................................................ 17 9.2.1 Selection and preparation of samples for chemical analysis........................................................ 17 9.2.2 Location of samples and orientation of test pieces for mechanical tests ................................. 17 9.2.3 Preparation of test pieces for mechanical tests................................................................................. 18 9.3 Identification of samples and test pieces ............................................................................................. 18 10 Test methods .................................................................................................................................................. 18 10.1 Chemical analysis ......................................................................................................................................... 18 10.2 Mechanical tests ............................................................................................................................................ 19 10.2.1 Tensile test ...................................................................................................................................................... 19 10.2.2 Impact test ....................................................................................................................................................... 19 10.3 Ultrasonic testing .......................................................................................................................................... 19 10.4 Retests .............................................................................................................................................................. 19 11 Marking, labelling, packaging .................................................................................................................. 20 12 Complaints ...................................................................................................................................................... 20 13 Options ............................................................................................................................................................. 20 Annex A (normative)

Location of samples and test pieces ........................................................................... 36 Annex B (informative)

List of Options of EN 10025-2 to

«6 ......................................................................... 39 Bibliography ................................................................................................................................................................. 41 oSIST prEN 10025-2:2018

prEN 10025-2:2018 (E) 4 European foreword This document (prEN 10025-2:2018) has been prepared by Technical Committee ECISS/TC 103 “Structural steels other than reinforcement”, the secretariat of which is held by DIN. This document is currently submitted to the second CEN Enquiry. This document will supersede EN 10025-2:2004. 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 10025-2:2018 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 2 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 was added, Options 9 and 21 were deleted; e) Si-content in 7.2.5 was changed; f) 7.4.3 concerning hot-dip zinc coating was modified; g) key to Figure A.1 was updated; oSIST prEN 10025-2:2018

prEN 10025-2:2018 (E) 5 h) steel grade S450 was deleted and steel grades S460 and S500 were added; i) Annex B was deleted; j) references were updated and the document was editorially revised. oSIST prEN 10025-2:2018

prEN 10025-2:2018 (E) 6 1 Scope This document specifies the technical delivery conditions for flat and long products as well as semi-finished products which are meant for further processing to flat and long products of hot rolled non-alloy quality steels in the grades and qualities given in Tables 1 to 5 (chemical composition) and Tables 6 to 8 (mechanical properties) in the usual delivery conditions as given in 6.3. Three engineering steels are also specified in this document (see Tables 2 and 4) (chemical composition) and Table 7 (mechanical properties). This document does not apply to structural hollow sections (see EN 10210-1 and EN 10219-1) and tubes. The technical delivery conditions apply to: — thicknesses

· 3 mm and

¶ 150 mm for long products of steel grade S460JR, J0, J2, K2 and S500J0; — thicknesses

¶ 400 mm for flat products of qualities JR, J0, J2 and K2; — thicknesses

¶ 250 mm for flat and long products of all other grades and qualities. 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). Semi-finished products which are to be converted to rolled finished products conforming to this document should be the subject of special agreement at the time of the order. The chemical composition can also be agreed at the time of the order, however the values should be within the limits of Tables 1 and 2. For certain grades and product forms suitability for particular applications may be specified at the time of the order (see 7.4.2, 7.4.3 and Table 9). 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. 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 oSIST prEN 10025-2:2018

prEN 10025-2:2018 (E) 7 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 CR 10320, Optical emission analysis of low alloy steels (routine method) — Method for determination of C, Si, S, P, Mn, Cr, Ni and Cu FprEN ISO 9443:2018, Surface quality classes for hot-rolled bars and wire rod (ISO/FDIS 9443:2018) EN ISO 14713-2:2009, Zinc coatings — Guidelines and recommendations for the protection against corrosion of iron and steel in structures — Part 2: Hot dip galvanizing (ISO 14713-2:2009) 2.2 Standards on dimensions and tolerances 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 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 oSIST prEN 10025-2:2018

prEN 10025-2:2018 (E) 8 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) 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) 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 10079 and the following apply. ISO and IEC maintain terminological databases for use in standardization at the following addresses: — IEC Electropedia: available at http://www.electropedia.org/ — ISO Online browsing platform: available at http://www.iso.org/obp 3.1 normalized rolled rolling process in which the final deformation is carried out in a certain temperature range leading to a material condition equivalent to that obtained after normalizing so that the specified values of the mechanical properties are retained even after normalizing Note 1 to entry: 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. oSIST prEN 10025-2:2018

prEN 10025-2:2018 (E) 9 3.2 as-rolled conventional hot rolling without any normalized rolling or thermomechanical rolling and/or heat treatment 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. 4 Classification and designation 4.1 Classification 4.1.1 Main quality classes The steel grades specified in this document shall be classified as non-alloy quality steels according to EN 10020. 4.1.2 Grades and qualities This document specifies nine steel grades S185, S235, S275, S355, S460, S500, E295, E335 and E360. The steel grades S235 and S275 may be supplied in qualities JR, J0 and J2. The steel grades S355 and S460 may be supplied in qualities JR, J0, J2 and K2. The steel grade S500 may be supplied in quality J0. The qualities differ in specified impact energy requirements. For steel grades S185, E295 to E360 no requirements for impact energy are specified. 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 10025-2); — steel name or the steel number; the steel name consisting of: oSIST prEN 10025-2:2018

prEN 10025-2:2018 (E) 10 — symbol S (for structural steel) or E (for engineering steel); — indication of the minimum specified yield strength for thickness

¶ 16 mm expressed in MPa; — if applicable, the quality designation (see 4.1.2) in respect of specified impact energy values; — if applicable, the additional symbol C for the suitability for the particular application (see Tables 9, 10, 11 and 12); — 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 also be added to the steel name or the steel number. EXAMPLE Structural steel (S) with a specified minimum yield strength at room temperature of 355 MPa with a minimum impact energy of 27 J at 0 °C (J0) and suitable for cold flanging (C), delivery condition +N (Option 19): EN 10025-2 - S355J0C+N or EN 10025-2 - 1.0554+N 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: oSIST prEN 10025-2:2018

prEN 10025-2:2018 (E) 11 a) Optional - Method at the manufacturer's discretion; b) FN - Rimming steel not permitted; c) 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 Tables 1 and 2. 6.3 Delivery conditions Unless otherwise agreed the delivery condition of long products and hot rolled strip can be +AR, +N or +M at the manufacturer's discretion, the delivery condition for quarto plates can only be +AR or +N at the manufacturer's discretion. See Option 19 (delivery condition +AR, +N or +M for long products and strip, +AR, +N for quarto plates). 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. 7 Requirements 7.1 General The requirements in 7.2 and 7.3 apply for sampling, preparation of test pieces and testing specified in Clauses 9 and 10. 7.2 Chemical composition 7.2.1 The chemical composition determined by ladle analysis shall comply with the specified values of Tables 1 and 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 upper limits applicable for the product analysis are given in Tables 3 and 4. The product analysis shall be carried out when specified at the time of the order. See Option 2 (product analysis). For elements not defined in 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 for the grades S235, S275, S355, S460 and S500 based on the ladle analysis, given in Table 5 shall apply. For determining the carbon equivalent value the following IIW (International Institute of Welding) formula shall be used: +++=+++6515CrMoVNiCuMnCEVC oSIST prEN 10025-2:2018

prEN 10025-2:2018 (E) 12 7.2.4 For all S235, S275 and S355 qualities, a copper-content between 0,25 % and 0,40 % on ladle analysis and between 0,20 % and 0,45 % on product analysis can be agreed at the time of enquiry and order.

...

Questions, Comments and Discussion

Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.