FprEN 4258

SLOVENSKI STANDARD
oSIST prEN 4258:2021
01-november-2021
Aeronavtika - Kovinski materiali - Splošna organizacija standardizacije - Povezava
med vrstami evropskih standardov in njihovo uporabo
Aerospace series - Metallic materials - General organization of standardization - Link
between types of European Standards and their use
Luft- und Raumfahrt - Metallische Werkstoffe - Allgemeine Gliederung der Normung -
Verknüpfung der Arten von Europäischen Normen und ihre Anwendung
Série aérospatiale - Matériaux métalliques - Organisation générale de la normalisation -
Liens entre les types de Normes Européennes et leur utilisation
Ta slovenski standard je istoveten z: prEN 4258
ICS:
01.120 Standardizacija. Splošna Standardization. General
pravila rules
49.025.05 Železove zlitine na splošno Ferrous alloys in general
oSIST prEN 4258:2021 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

oSIST prEN 4258:2021
oSIST prEN 4258:2021
DRAFT
EUROPEAN STANDARD
prEN 4258
NORME EUROPÉENNE
EUROPÄISCHE NORM
September 2021
ICS 49.025.01 Will supersede EN 4258:1998
English Version
Aerospace series - Metallic materials - General
organization of standardization - Link between types of
European Standards and their use
Série aérospatiale - Matériaux métalliques - Luft- und Raumfahrt - Metallische Werkstoffe -
Organisation générale de la normalisation - Liens entre Allgemeine Gliederung der Normung - Verknüpfung
les types de Normes Européennes et leur utilisation der Arten von Europäischen Normen und ihre
Anwendung
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee ASD-
STAN.
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
© 2021 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 4258:2021 E
worldwide for CEN national Members.

oSIST prEN 4258:2021
prEN 4258:2021 (E)
Contents Page
European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 6
4 Levels of European Standards . 6
4.1 General. 6
4.2 General standard (level 0) . 6
4.3 Basic standards (level 1) . 7
4.4 Standards specifying rules (level 2) . 7
4.5 Semi-finished product definition documents (level 3) . 7
4.5.1 Material standards . 7
4.5.2 Technical specifications . 7
4.5.3 Test method standards . 8
4.5.4 Dimensional standards . 8
4.5.5 Designation standards for semi-finished products . 8
4.5.6 Technical Reports . 8
4.6 Supplementary standards for quality assurance (level 4) . 8
5 Links between European Standards and their use . 8
5.1 Requirements for level 1, 2 and 4 standards . 8
5.2 Requirements for level 3 standards . 9
5.3 Technical Reports . 9
Annex A (normative) New organization for aerospace standards related to metallic
materials . 10
Annex B (normative) Use of the relevant material standard . 12
B.1 Form 1 . 12
B.2 Form 2 . 12
B.3 Form 3 . 12
Annex C (normative) Intermediate procedure. 13
Bibliography . 15

oSIST prEN 4258:2021
prEN 4258:2021 (E)
European foreword
This document (prEN 4258:2021) has been prepared by the Aerospace and Defence Industries
Association of Europe — Standardization (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 is currently submitted to the CEN Enquiry.
This document will supersede EN 4258:1998.
oSIST prEN 4258:2021
prEN 4258:2021 (E)
Introduction
For the purpose of standardization of metallic materials, ASD-STAN had originally based the
organization of this standardization on a system which provided strong interlinks between a material
standard referring to EN 2500 and its supporting standards.
Since these links did not allow the partial use of the supporting standards, the following amendments
have been introduced to ensure that:
• strongly interlinked standards are limited to those strictly necessary to ensure coherency;
• other standards may be either used, or replaced by standards of another origin, at the purchaser's
discretion.
The basic change in these links is that the dimensional standards and designation standard for semi-
finished products, where applicable, have been dissociated from the material standard. Additionally,
product qualification procedures are being introduced.
Pending the updating of the standards, these two organizations exist in parallel:
• the original one described by EN 2500;
• the new one described in this document (see Annex A and Annex B).
To enable progressive updating of the standards, an intermediate procedure is to be followed, as
described in Annex C, pending full introduction of the new organization.
oSIST prEN 4258:2021
prEN 4258:2021 (E)
1 Scope
This document specifies the general organization of metallic material standards for aerospace
applications, their links with other types of European Standards and their use.
It corresponds to level 0 (see 4.2).
From the date of publication of this document, specifications for different welding and brazing products
can be written in only one standard instead of separated material standard. Already existing material
standards for filler metals for welding and for brazing can continue to follow this organization.
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 2032-001, Aerospace series — Metallic materials — Part 001: Conventional designation
EN 2032-2, Aerospace series — Metallic materials — Part 2: Coding of metallurgical condition in delivery
condition
EN 2043, Aerospace series — Metallic materials — General requirements for semi-finished product
qualification (excluding forgings and castings)
EN 2078, Aerospace series — Metallic materials — Manufacturing schedule, inspection schedule,
inspection and test report — Definition, general principles, preparation and approval
EN 4000, Aerospace series — Metallic materials — Rules for the drafting and presentation of dimensional
standards for metallic semi-finished products
EN 4179, Aerospace series — Qualification and approval of personnel for non-destructive testing
EN 4259, Aerospace series — Metallic materials — Definition of general terms
EN 4260, Aerospace series — Metallic materials — Rules for drafting and presentation of technical
specifications
EN 4261, Aerospace series — Metallic materials — Rules for drafting and presentation of test method
standards
EN 4268, Aerospace series — Metallic materials — Heat treatment facilities — General requirements
EN 4500 (all parts), Aerospace series — Metallic materials — Rules for drafting and presentation of
material standards
TR 2410, Metallic materials — Relationship between dimensional standards and material standards

Published as ASD-STAN Standard at the date of publication of this document by AeroSpace and Defence
Industries Association of Europe — Standardization (ASD-STAN), http://www.asd-stan.org/.
Published as ASD-STAN Technical Report at the date of publication of this document by AeroSpace and Defence
Industries Association of Europe — Standardization (ASD-STAN), http://www.asd-stan.org/.
oSIST prEN 4258:2021
prEN 4258:2021 (E)
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
• ISO Online browsing platform: available at https://www.iso.org/obp
• IEC Electropedia: available at https://www.electropedia.org/
3.1
family of metallic materials
group of metallic materials characterized by a base element or a group of base elements in several
different semi-finished product forms
Note 1 to entry: These product forms may consist of the following families:
a) aluminium and aluminium alloys;
b) magnesium alloys;
c) heat resisting alloys (nickel or cobalt or iron base);
d) titanium and titanium alloys;
e) steels;
f) filler metals for brazing.
3.2
semi-finished products
generic term used to indicate that the material as supplied does not necessarily have any relation to the
exact form, dimensions or condition in which that material is used as a final component
Note 1 to entry: This term may refer to one of the following types:
a) wrought products (e.g. bar, sheet, sections) or cast products (e.g. rod, amorphous brazing foil) characterized by
their form within a range of standardized dimensions;
b) products of non-standardized form and dimensions produced by the same metallurgical technique (e.g. forging
stock, remelting stock);
c) blanks manufactured from the products stated above, of non-standardized form and dimension (e.g. forgings,
castings).
4 Levels of European Standards
4.1 General
This document defines five levels of European Standards, numbered from 0 to 4 (see Annex A).
For the intermediate procedure, see Annex C.
4.2 General standard (level 0)
Explanatory standard for the organization of the whole collect
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