EN 10250-1:2022

SLOVENSKI STANDARD
01-maj-2022
Nadomešča:
SIST EN 10250-1:2000
Prosto kovani jekleni izkovki za splošno tehnično uporabo - 1. del: Splošne
zahteve
Open die steel forgings for general engineering purposes - Part 1: General requirements
Freiformschmiedestücke aus Stahl für allgemeine Verwendung - Teil 1: Allgemeine
Anforderungen
Pièces forgées en acier pour usage général - Partie 1: Exigences générales
Ta slovenski standard je istoveten z: EN 10250-1:2022
ICS:
77.140.85 Železni in jekleni kovani Iron and steel forgings
izdelki
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 10250-1
EUROPEAN STANDARD
NORME EUROPÉENNE
March 2022
EUROPÄISCHE NORM
ICS 77.140.85 Supersedes EN 10250-1:1999
English Version
Open die steel forgings for general engineering purposes -
Part 1: General requirements
Pièces forgées en acier pour usage général - Partie 1: Freiformschmiedestücke aus Stahl für allgemeine
Exigences générales Verwendung - Teil 1: Allgemeine Anforderungen
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 10250-1:2022 E
worldwide for CEN national Members.

Contents Page
European foreword . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 6
4 Classification and designation . 6
4.1 Classification . 6
4.2 Designation. 6
5 Information to be provided by the purchaser . 7
5.1 Mandatory information . 7
5.2 Options . 7
6 Manufacture of the steel . 7
6.1 Steelmaking process . 7
6.2 Deoxidation . 7
7 Manufacture of the product . 7
7.1 Hot working . 7
7.2 Forging reduction. 8
7.3 Heat treatment . 8
7.4 Weldability . 8
8 Surface condition and internal soundness . 8
8.1 General . 8
8.2 Removal or surface defects . 8
8.3 Dimensions, shape, tolerances and nominal mass . 9
8.4 Compatibility with non-destructive testing (NDT) . 9
9 Chemical composition . 9
9.1 Cast analysis . 9
9.2 Product analysis (optional requirement) . 9
10 Mechanical properties . 9
11 Sampling and preparation of test pieces . 10
11.1 General . 10
11.2 Methods used for the provision of samples . 10
11.3 Preparation of test pieces . 11
12 Mechanical test methods . 11
12.1 General . 11
12.2 Hardness tests . 11
12.3 Tensile tests . 11
12.4 Impact tests . 11
12.5 Intergranular corrosion test . 11
13 Retests and re-heat treatment . 12
13.1 Retests . 12
13.2 Re-heat treatment . 12
14 Inspection . 12
15 Marking . 13
Annex A (normative) Options . 14
Annex B (informative) Ruling section and equivalent thickness . 16
European foreword
This document (EN 10250-1:2022) has been prepared by Technical Committee CEN/TC 459 “ECISS -
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 10250-1:1999.
In comparison with the previous edition, the following technical modifications have been made:
— updating of normative references;
— alignment of the text with reference standards.
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.
Through its sub-committee SC 11 “Steel castings and forgings” (secretariat: AFNOR).
1 Scope
This document specifies the general technical delivery conditions for open die forgings, forged bars, and
products pre-forged and finished in ring rolling mills, for general engineering purposes.
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.
CEN/TR 10261, Iron and steel - European standards for the determination of chemical composition
EN 10020, Definition and classification of grades of steel
EN 10021:2006, General technical delivery conditions for steel products
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 10168, Steel products - Inspection documents - List of information and description
EN 10204, Metallic products - Types of inspection documents
EN 10228-1, Non-destructive testing of steel forgings - Part 1: Magnetic particle inspection
EN 10228-2, Non-destructive testing of steel forgings - Part 2: Penetrant testing
EN 10228-3, Non-destructive testing of steel forgings - Part 3: Ultrasonic testing of ferritic or martensitic
steel forgings
EN 10228-4, Non-destructive testing of steel forgings - Part 4: Ultrasonic testing of austenitic and austenitic-
ferritic stainless steel forgings
EN 10250-2, Open die steel forgings for general engineering purposes - Part 2: Non-alloy quality and special
steels
EN 10250-3, Open die steel forgings for general engineering purposes - Part 3: Alloy special steels
EN 10250-4, Open die steel forgings for general engineering purposes - Part 4: Stainless steels
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 3651-2, Determination of resistance to intergranular corrosion of stainless steels - Part 2: Ferritic,
austenitic and ferritic-austenitic (duplex) stainless steels - Corrosion test in media containing sulfuric acid
(ISO 3651-2)
EN ISO 4885, Ferrous materials - Heat treatments - Vocabulary (ISO 4885)
EN ISO 6506-1, Metallic materials - Brinell hardness test - Part 1: Test method (ISO 6506-1)
EN ISO 6892-1, Metallic materials - Tensile testing - Part 1: Method of test at room temperature (ISO 6892-
1)
EN ISO
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