SIST EN 10250-2:2022

Open die steel forgings for general engineering purposes - Part 2: Non-alloy quality and special steels

This document specifies the technical delivery requirements for open die forgings, forged bars and products pre-forged and finished in ring rolling mills, manufactured from non-alloy quality and special steels and supplied in the normalized, normalized and tempered, quenched and tempered or annealed condition
The majority of steels listed in this document, with properties in the quenched and tempered condition up to 160 mm thickness, are identical to steels specified in EN 10083-1 and EN 10083-2 and more extensive information on hardenability and technological properties is given in these standards.
General Information on technical delivery conditions is given in EN 10021.

Freiformschmiedestücke aus Stahl für allgemeine Verwendung - Teil 2: Unlegierte Qualitäts- und Edelstähle

Dieser Teil dieser Europäischen Norm legt die allgemeinen technischen Lieferbedingungen für Freiformschmiedestücke, geschmiedete Stäbe und Erzeugnisse, die vorgeschmiedet und in Ringwalzwerken fertig umgeformt werden, fest, Sie sind für allgemeine Verwendung bestimmt.
Die meisten Stähle, die in diesem Dokument mit Eigenschaften im vergüteten Zustand für bis zu 160 mm Dicke aufgeführt sind, sind mit Stählen identisch, die in EN ISO 683-1 und EN ISO 683-2 festgelegt sind. Umfassendere Angaben über die Härtbarkeit und technologische Eigenschaften werden in jenen Normen gemacht.
Allgemeine Angaben über die technischen Lieferbedingungen enthält EN 10021.

Pièces forgées en acier pour usage général - Partie 2: Aciers de qualité non alliés et aciers spéciaux

Le présent document spécifie les exigences techniques de livraison des pièces obtenues par forgeage libre, des barres forgées et des produits pré-forgés et finis par laminage circulaire, fabriqués en acier spécial et en acier de qualité non allié et livrés à l'état normalisé, normalisé et revenu, trempé et revenu ou recuit.
La majorité des aciers cités le présent document, avec des caractéristiques à l'état trempé et revenu jusqu'à une épaisseur de 160 mm, sont identiques aux aciers spécifiés dans l'EN ISO 683-1 et l'EN ISO 683-2 et des informations plus complètes sur la trempabilité et les propriétés technologiques sont données dans ces normes.
Les informations générales sur les conditions techniques de livraison sont données dans l'EN 10021.

Prosto kovani jekleni izkovki za splošno tehnično uporabo - 2. del: Nelegirana kakovostna in plemenita jekla

Ta dokument določa tehnične dobavne zahteve za prosto kovane izkovke, kovane drogove in izdelke, predhodno kovane in dokončane v mlinih z obročastimi valji, ki so izdelani iz nelegiranih kakovostnih in plemenitih jekel ter dobavljeni v normaliziranem, normaliziranem in tempranem, kaljenem in tempranem oziroma žarjenem stanju.
Večina jekel, navedenih v tem dokumentu, z lastnostmi v kaljenem in tempranem stanju do debeline 160 mm, je enaka jeklom iz standardov EN 10083-1 in EN 10083-2, v teh standardih pa so podane obsežnejše informacije o kaljivosti in tehnoloških lastnostih.
Splošne informacije o tehničnih dobavnih pogojih so podane v standardu EN 10021.

General Information

• Status: Published
• Public Enquiry End Date: 27-Jan-2021
• Publication Date: 11-Apr-2022
• ICS: 77.140.20 - Stainless steels
• ICS: 77.140.45 - Non-alloyed steels
• ICS: 77.140.85 - Iron and steel forgings
• Technical Committee: IFEK - Ferrous metals
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 06-Apr-2022
• Due Date: 11-Jun-2022
• Completion Date: 12-Apr-2022
• Mandate: M/005 - Mandate to CEN/ECISS concerning standardization in the iron and steel sector
• Ref Project: EN 10250-2:2022 - Open die steel forgings for general engineering purposes - Part 2: Non-alloy quality and special steels

Relations

• Replaces: SIST EN 10250-2:2000 - Open die steel forgings for general engineering purposes - Part 2: Non-alloy quality and special steels
• Effective Date: 06-Apr-2022
• Replaces: SIST EN 10250-2:2000 - Open die steel forgings for general engineering purposes - Part 2: Non-alloy quality and special steels
• Effective Date: 08-Jun-2022

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN 10250-2:2022
01-maj-2022
Nadomešča:
SIST EN 10250-2:2000
Prosto kovani jekleni izkovki za splošno tehnično uporabo - 2. del: Nelegirana
kakovostna in plemenita jekla
Open die steel forgings for general engineering purposes - Part 2: Non-alloy quality and
special steels
Freiformschmiedestücke aus Stahl für allgemeine Verwendung - Teil 2: Unlegierte
Qualitäts- und Edelstähle
Pièces forgées en acier pour usage général - Partie 2: Aciers de qualité non alliés et
aciers spéciaux
Ta slovenski standard je istoveten z: EN 10250-2:2022
ICS:
77.140.20 Visokokakovostna jekla Stainless steels
77.140.45 Nelegirana jekla Non-alloyed steels
77.140.85 Železni in jekleni kovani Iron and steel forgings
izdelki
SIST EN 10250-2:2022 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 10250-2:2022

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SIST EN 10250-2:2022


EN 10250-2
EUROPEAN STANDARD

NORME EUROPÉENNE

March 2022
EUROPÄISCHE NORM
ICS 77.140.45; 77.140.85 Supersedes EN 10250-2:1999
English Version

Open die steel forgings for general engineering purposes -
Part 2: Non-alloy quality and special steels
Pièces forgées en acier pour usage général - Partie 2: Freiformschmiedestücke aus Stahl für allgemeine
Aciers de qualité non alliés et aciers spéciaux Verwendung - Teil 2: Unlegierte Qualitäts- und
Edelstähle
This European Standard was approved by CEN on 14 February 2022.

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
© 2022 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 10250-2:2022 E
worldwide for CEN national Members.

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SIST EN 10250-2:2022
EN 10250-2:2022 (E)
Contents Page

European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 4
4 Chemical composition . 4
4.1 Cast analysis . 4
4.2 Product analysis . 4
5 Heat treatment . 5
6 Mechanical properties . 5
6.1 Forgings in the normalized, normalized and tempered, and quenched and tempered
condition . 5
6.2 Forgings in the annealed condition (Steels C45, C55 and C60) . 5
Annex A (informative) Heat treatment. 11
Bibliography . 12
2

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SIST EN 10250-2:2022
EN 10250-2:2022 (E)
European foreword
This document (EN 10250-2:2022) has been prepared by Technical Committee CEN/TC 459 “ECISS -
1
European Committee for Iron and Steel Standardization”, the secretariat of which is held by AFNOR.
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 September 2022, and conflicting national standards shall
be withdrawn at the latest by September 2022.
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 10250-2:1999.
In comparison with the previous edition, the following technical modifications have been made:
— updating of normative references;
— deletion of previous Table 2 - Permissible deviations between the product analysis and the limiting
values given in Table 1 for the cast analysis;
— deletion of C 22 steel grade from all the tables.
EN 10250, Open die steel forgings for general engineering purposes, consists of the following parts:
— Part 1: General requirements;
— Part 2: Non-alloy quality and special steels;
— Part 3: Alloy special steels;
— Part 4: Stainless steels.
Any feedback and questions on this document should be directed to the users’ national standards body.
A complete listing of these bodies can be found on the CEN website.
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, 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 the United
Kingdom.

1
Through its sub-committee SC 11 “Steel castings and forgings” (secretariat: AFNOR).
3

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SIST EN 10250-2:2022
EN 10250-2:2022 (E)
1 Scope
This document specifies the technical delivery requirements for open die forgings, forged bars and
products pre-forged and finished in ring rolling mills, manufactured from non-alloy quality and special
steels and supplied in the normalized, normalized and tempered, quenched and tempered or annealed
condition.
The majority of steels listed in this document, with properties in the quenched and tempered condition
up to 160 mm thickness, are identical to steels specified in EN ISO 683-1 and EN ISO 683-2 and more
extensive information on hardenability and technological properties is given in these standards.
General information on technical delivery conditions is given in EN 10021.
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 10250-1:2022, Open die steel forgings for general engineering purposes - Part 1: General requirements
EN ISO 683-1:2018, Heat-treatable steels, alloy steels and free-cutting steels - Part 1: Non-alloy steels for
quenching and tempering (ISO 683-1:2016)
EN ISO 6506-1, Metallic materials - Brinell hardness test - Part 1: Test method (ISO 6506-1)
3 Terms and definitions
No terms and definitions are listed in this document.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— IEC Electropedia: available at https://www.electropedia.org/
— ISO Online browsing platform: available at https://www.iso.org/obp
4 Chemical composition
4.1 Cast analysis
The chemical composition of the steel shall be determined by cast analysis and shall conform to the
analysis given in Table 1 (see EN 10250-1:2022, A.7 and A.8).
Measures should be taken to prevent the addition from the scrap, or other material used in the
manufacture of the steel, of such elements which affect the hardenability, mechanical properties and
applicability of the steel.
4.2 Product analysis
The product analysis shall not deviate from the specified cast analysis (see Table 1) by more than the
values specified in EN ISO 683-1:2018, Table 4 (see EN 10250-1:2022,
...

SLOVENSKI STANDARD
oSIST prEN 10250-2:2021
01-januar-2021
Prosto kovani jekleni izkovki za splošno tehnično uporabo - 2. del: Nelegirana
kakovostna in plemenita jekla
Open die steel forgings for general engineering purposes - Part 2: Non-alloy quality and
special steels
Freiformschmiedestücke aus Stahl für allgemeine Verwendung - Teil 2: Unlegierte
Qualitäts- und Edelstähle
Pièces forgées en acier pour usage général - Partie 2: Aciers de qualité non alliés et
aciers spéciaux
Ta slovenski standard je istoveten z: prEN 10250-2
ICS:
77.140.20 Visokokakovostna jekla Stainless steels
77.140.45 Nelegirana jekla Non-alloyed steels
77.140.85 Železni in jekleni kovani Iron and steel forgings
izdelki
oSIST prEN 10250-2:2021 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN 10250-2:2021

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oSIST prEN 10250-2:2021


DRAFT
EUROPEAN STANDARD
prEN 10250-2
NORME EUROPÉENNE

EUROPÄISCHE NORM

November 2020
ICS 77.140.45; 77.140.85 Will supersede EN 10250-2:1999
English Version

Open die steel forgings for general engineering purposes -
Part 2: Non-alloy quality and special steels
Pièces forgées en acier pour usage général - Partie 2: Freiformschmiedestücke aus Stahl für allgemeine
Aciers de qualité non alliés et aciers spéciaux Verwendung - Teil 2: Unlegierte Qualitäts- und
Edelstähle
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 459/SC 11.

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

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

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

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

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


EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2020 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 10250-2:2020 E
worldwide for CEN national Members.

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oSIST prEN 10250-2:2021
prEN 10250-2:2020 (E)
Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 4
4 Chemical composition . 4
4.1 Cast analysis . 4
4.2 Product analysis . 4
5 Heat treatment . 4
6 Mechanical properties . 5
6.1 Forgings in the normalized, normalized and tempered, and quenched and tempered
condition . 5
6.2 Forgings in the annealed condition (Steels C45, C55 and C60) . 5
Annex A (informative) Heat treatment [4] . 9
Bibliography . 10

2

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oSIST prEN 10250-2:2021
prEN 10250-2:2020 (E)
European foreword
This document (prEN 10250-2:2020) has been prepared by Technical Committee CEN/TC 459 “Steel
castings and forgings”, the secretariat of which is held by AFNOR.
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 10250-2:1999.
In comparison with the previous edition, the following technical modifications have been made:
— updating of normative references;
— deletion of previous Table 2 - Permissible deviations between the product analysis and the limiting
values given in Table 1 for the cast analysis;
— deletion of C 22 steel grade from all the tables.
EN 10250, Open die steel forgings for general engineering purposes, consists of the following parts:
— Part 1: General requirements;
— Part 2: Non-alloy quality and special steels;
— Part 3: Alloy special steels;
— Part 4: Stainless steels.
3

---------------------- Page: 5 ----------------------
oSIST prEN 10250-2:2021
prEN 10250-2:2020 (E)
1 Scope
This document specifies the technical delivery requirements for open die forgings, forged bars and
products pre-forged and finished in ring rolling mills, manufactured from non-alloy quality and special
steels and supplied in the normalized, normalized and tempered, quenched and tempered or annealed
condition
The majority of steels listed in this document, with properties in the quenched and tempered condition
up to 160 mm thickness, are identical to steels specified in EN ISO 683-1 and EN ISO 683-2 and more
extensive information on hardenability and technological properties is given in these standards.
General information on technical delivery conditions is given in EN 10021.
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.
prEN 10250-1:2020, Open die steel forgings for general engineering purposes - Part 1: General
requirements
EN ISO 683-1:2018, Heat-treatable steels, alloy steels and free-cutting steels - Part 1: Non-alloy steels for
quenching and tempering (ISO 683-1:2016)
EN ISO 6506-1, Metallic materials - Brinell hardness test - Part 1: Test method (ISO 6506-1)
3 Terms and definitions
No terms and definitions are listed in this document.
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 https://www.iso.org/obp
4 Chemical composition
4.1 Cast analysis
The chemical composition of the steel shall be determined by cast analysis and shall conform to the
analysis given in Table 1 (see A.7 and A.8 of prEN 10250-1:2020).
Measures should be taken to prevent the addition from the scrap, or other material used in the
manufacture of the
...