EN 4631:2024

SLOVENSKI STANDARD
01-oktober-2024
Aeronavtika - Jeklo X4CrNiMo16-5-1 (1.4418) - Taljeno - Utrjeno in mehko žarjeno -
Palice - De ≤ 200 mm - 900 MPa ≤ Rm ≤ 1 050 MPa
Aerospace series - Steel X4CrNiMo16-5-1 (1.4418) - Air melted - Hardened and
tempered - Bars - De ≤ 200 mm - 900 MPa ≤ Rm ≤ 1 050 MPa
Luft- und Raumfahrt - Stahl X4CrNiMo16-5-1 (1.4418) - Lufterschmolzen - Gehärtet- und
angelassen - Stangen - De ≤ 200 mm - 900 MPa ≤ Rm ≤ 1 050 MPa
Série aérospatiale - Acier X4CrNiMo16 (1.4418) - Élaboré à l'air - Trempé et revenu -
Barres - De ≤ 200 mm - 900 MPa ≤ Rm ≤ 1 050 MPa
Ta slovenski standard je istoveten z: EN 4631:2024
ICS:
49.025.10 Jekla Steels
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 4631
EUROPEAN STANDARD
NORME EUROPÉENNE
August 2024
EUROPÄISCHE NORM
ICS 49.025.10 Supersedes EN 4631:2013
English Version
Aerospace series - Steel X4CrNiMo16-5-1 (1.4418) - Air
melted - Hardened and tempered - Bars - De  200 mm -
900 MPa  Rm  1 050 MPa
Série aérospatiale - Acier X4CrNiMo16-5-1 (1.4418) - Luft- und Raumfahrt - Stahl X4CrNiMo16-5-1 (1.4418)
Élaboré à l'air - Trempé et revenu - Barres - De  200 - Lufterschmolzen - Gehärtet- und angelassen - Stangen
mm - 900 MPa  Rm  1 050 MPa - De  200 mm - 900 MPa  Rm  1 050 MPa
This European Standard was approved by CEN on 26 May 2024.

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, Türkiye 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
© 2024 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 4631:2024 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Requirements . 6
Bibliography . 7

European foreword
This document (EN 4631:2024) has been prepared by ASD-STAN.
After enquiries and votes carried out in accordance with the rules of this Association, this document has
received the approval of the National Associations and the Official Services of the member countries of
ASD-STAN, prior to its presentation to CEN.
This document shall be given the status of a national standard, either by publication of an identical text
or by endorsement, at the latest by February 2025, and conflicting national standards shall be
withdrawn at the latest by February 2025.
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 4631:2013.
The main changes with respect to the previous edition are as follows:
— EN 4631 (P2), 02/2013 — General editorial improvements;
— Clause 2: EN 2950 removed from normative references;
— Table 1, line 11: correction of Direction of test piece (T instead of LT);
— Table 1, line 17: correction of values for Hardness (addition of optional HV criteria);
— Table 1, line 44: addition of the possibility to do an eddy current testing.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this document: 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, Türkiye and the United
Kingdom.
Introduction
This document is part of the series of EN metallic material standards for aerospace applications.
The general organization of this series is described in EN 4258.
This document has been prepared in ac
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