EN 4500-005:2026

• Abstract:

  The EN 4500 series specifies the rules for the drafting and presentation of metallic material standards for aerospace applications.; This Part 005 specifies the "Specific rules for steels".

• Status: Not Published
• Publication Date: 06-Oct-2026
• ICS: 49.025.10 - Steels
• Technical Committee: ASD-STAN - Aerospace
• Drafting Committee: ASD-STAN/D 4/S 3 - Steels & Heat Resisting Alloys
• Current Stage: 6055 - CEN Ratification completed (DOR) - Publishing
• Start Date: 26-Jul-2026
• Completion Date: 26-Jul-2026
• Ref Project: kSIST FprEN 4500-005:2026 - Aerospace series - Metallic materials - Rules for drafting and presentation of material standards - Part 005: Specific rules for steels

• Referred By: EN ISO 22097:2023 - Thermal insulation for buildings - Reflective insulation products - Determination of thermal performance (ISO 22097:2023)
• Effective Date: 28-Jan-2026
• Referred By: EN ISO 6781-1:2023 - Performance of buildings - Detection of heat, air and moisture irregularities in buildings by infrared methods - Part 1: General procedures (ISO 6781-1:2023)
• Effective Date: 28-Jan-2026
• Revises: EN 4500-005:2024 - Aerospace series - Metallic materials - Rules for drafting and presentation of material standards - Part 005: Specific rules for steels
• Effective Date: 11-Jun-2025

EN 4500-005:2026 is a CEN standard in the Aerospace series that gives the specific rules for drafting and presenting material standards for steels. It tells standards writers how to build a steel material standard for aerospace applications, including the title, scope, references, terms, Table 1 and the supporting annexes.

What does EN 4500-005:2026 specify?

EN 4500-005:2026 specifies the drafting rules for European standards covering aerospace steel materials. It is part of the EN 4500 series on metallic materials for aerospace applications, and it is written for the preparation of material standards rather than for the product itself.

The document is organized into four main clauses and five informative annexes. Clause 4 contains the rules for drafting, while Annexes A to E give completion examples and model text for the title page, introduction, scope and requirements, Table 1, and bibliography.

Annex	What it covers
A	Completion of title page
B	Completion of the introduction
C	Completion of the scope, normative references, terms and definitions, and requirements
D	Completion of Table 1
E	Completion of the bibliography

Clause 4.1 says the annex examples are only illustrations of the drafting rules and may not correspond to actual standardized EN semi-finished products. Clause 4.1 also notes that technological development may require terms beyond those listed.

What are the key requirements of EN 4500-005:2026?

EN 4500-005:2026 is mainly a template standard, so its key requirements are about what a steel material standard shall contain and how each item shall be written. The most important part is Table 1, because Clause 4.4 and Annex C state that the requirements of Table 1 apply and that the documents listed in Table 1 shall be applied.

How the title and identification are drafted

• Clause 4.2 requires the title to be completed using the prescribed wording structure. In practice, this means the title must identify the steel, the melting method, the form and any additional information in a controlled way.
• Clause 4.2.2 lists the permitted melting terms, such as air melted, vacuum induction melted, vacuum refined, vacuum arc remelted, electro-slag remelted and consumable electrode remelted. This matters because the melting route is often part of product definition and traceability.
• Clause 4.2.3 gives the allowed form qualifiers for sheets, bars, sections, tubes, wires, forgings, castings, rings and other product forms. A purchaser or engineer can use these terms to see exactly which product form the standard covers.
• Clause 4.2.4 lists examples of additional information entries such as structural applications, pressure applications, fasteners, machining, bearings, welding, carburizing or other thermo-chemical treatment, and nitriding. These entries help narrow the intended use.

How Table 1 is built

• Clause 4.5 makes Table 1 the central structure for the steel standard. It covers material designation, chemical composition, melting method, form, production method, further intended processing, dimensions, delivery condition, test conditions, inspection and qualification.
• Clause 4.5.2 fixes the order for chemical elements. The practical effect is that compositions are written in a consistent sequence, which makes comparison between standards easier.
• Clause 4.5.7 requires limiting dimensions for steels to be based on the equivalent diameter D from EN 10083-1. This matters when a product is not a simple uniform shape, because the same size basis must be used for comparison.
• Clause 4.5.10 and Clause 4.5.12 control delivery condition and use condition terms. The standard uses states such as annealed, solution treated, hardened, tempered, sub-zero treated, cold worked, descaled, machined and ground, so the reader knows the condition in which the product is supplied or assessed.
• Clause 4.5.17 to 4.5.26 provide the property lines for tensile, hardness, shear strength, bending, impact strength and creep. In practice, this is where the standard says which properties may be specified and how they are grouped.
• Clause 4.5.28 to 4.5.33 cover marking inspection, dimensional inspection, notes, typical use and product qualification. This helps a drafting committee separate identification, inspection and qualification information from core material properties.

What is excluded or treated as not applicable

• Clause 4.5.16 states that thickness of cladding on each face is not applicable to steel.
• Clause 4.5.25 says line 27 is not used.
• Clause 4.5.30 says line 97 is not used.

These points matter because they keep steel standards from carrying unnecessary fields that belong to other material families.

How examples and qualification are handled

• Annex C states that the documents listed in Table 1 shall be applied. This makes the references in the table part of the technical content, not just background reading.
• Clause 4.5.26 and Clause 4.5.27 point to the reference heat treatment and the completion of lines 30 to 94 in accordance with EN 4500-001, with Annex E supporting the bibliography.
• Clause 4.5.33 and Annex D show how product qualification is written and how the qualification programme is agreed between manufacturer and purchaser. That is important for release, approval and contractual alignment.

What terms does EN 4500-005:2026 define?

• Material designation - the identifier used for the steel in Table 1, such as the example designation shown in the annexes.
• Method of melting - the melting route used to make the steel, written with the controlled terms listed in Clause 4.2.2.
• Delivery condition - the state in which the product is supplied, including conditions such as annealed, solution treated, hardened, tempered or cold worked.
• Heat treatment - the thermal treatment stated for delivery, use or reference conditions, so the standard can link properties to a defined material state.
• Reference heat treatment - the heat treatment used as the benchmark for the specified properties and qualification data.
• Dimensional standard - the dimensional document named in Table 1 to govern the product dimensions.
• Equivalent diameter D - the size basis used for limiting dimensions of steels in accordance with EN 10083-1.
• Product qualification - the approval route for the product standard, tied to a qualification programme agreed between manufacturer and purchaser.

Who uses EN 4500-005:2026?

EN 4500-005:2026 is used by technical committees and standards writers who prepare aerospace steel material standards. It is also used by material engineers, quality managers, purchasers and conformity teams who review how a steel standard is structured and what it requires.

In practice, it helps people who have to draft or check the wording for composition, condition, testing, inspection and qualification. Laboratories and test planners can also use it when they need to understand how test samples, test pieces and test methods are called up in a steel material standard.

What changed in EN 4500-005:2026 from the previous edition?

EN 4500-005:2026 supersedes EN 4500-005:2024. The foreword states these changes compared with the previous edition:

• addition of the missing text in the scope
• addition of lines 4.3 “Further intended processing” and 5.2 “Dimensional standard” in the body of the document and in Annex D
• addition of introductory sentences to Table 1 in Annex C to show that the table is normative and that all listed documents shall be applied
• editorial clarification of the normative or informative status of references to other documents and annexes
• restructuring of the document and simplification of the template to achieve a single continuous table

Which standards are used with EN 4500-005:2026?

EN 4500-005:2026 relies on three normative references in its text:

• EN 4259 - gives the general terms and definitions for aerospace metallic materials.
• EN 4500-001 - provides the general drafting rules for aerospace material standards and is used throughout Clause 4.
• EN 10083-1 - supplies the basis for equivalent diameter and general technical delivery conditions for quenching and tempering steels.

The introduction also places EN 4500-005 within the wider EN 4258 series organization, and the bibliography points to related EN 4500 and EN 4700 parts that support drafting and testing.

What does the EN 4500-005:2026 document contain?

EN 4500-005:2026 contains the drafting template for aerospace steel material standards, including title-page wording, introduction text and the model scope. It then gives the structure of Table 1, which is the core of the document and carries the material, composition, processing, dimensions, tests, inspection and qualification lines.

The annexes provide worked completion examples for a steel case based on 100Cr6 (1.3505). These examples show how the table can be filled for properties such as tensile behavior, hardness, impact strength, hardenability, microstructure, inclusion content, fatigue, density, elastic modulus and crack propagation.

The bibliography also gathers the supporting standards used in drafting and testing, including the aerospace series parts, test methods and external standards such as EN ISO 642, EN ISO 3651-1, EN ISO 12737, ISO 9649 and ASTM E45. In practice, this helps the writer or reviewer trace each line of Table 1 to the method or companion standard that supports it.

SLOVENSKI STANDARD
oSIST prEN 4500-005:2025
01-oktober-2025
Aeronavtika - Kovinski materiali - Pravila za načrtovanje in predstavljanje
standardov za materiale - 005. del: Posebna pravila za jekla
Aerospace series - Metallic materials - Rules for drafting and presentation of material
standards - Part 005: Specific rules for steels
Luft- und Raumfahrt - Metallische Werkstoffe - Regeln für das Erstellen und die
Gestaltung von Werkstoffnormen - Teil 005: Besondere Regeln für Stähle
Série aérospatiale - Matériaux métalliques - Règles pour la rédaction et la présentation
des normes de matériaux - Partie 005 : Règles spécifiques aux aciers
Ta slovenski standard je istoveten z: prEN 4500-005
ICS:
01.120 Standardizacija. Splošna Standardization. General
pravila rules
49.025.10 Jekla Steels
oSIST prEN 4500-005:2025 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

oSIST prEN 4500-005:2025
oSIST prEN 4500-005:2025
DRAFT
EUROPEAN STANDARD
prEN 4500-005
NORME EUROPÉENNE
EUROPÄISCHE NORM
August 2025
ICS 49.025.10 Will supersede EN 4500-005:2024
English Version
Aerospace series - Metallic materials - Rules for drafting
and presentation of material standards - Part 005: Specific
rules for steels
Série aérospatiale - Matériaux métalliques - Règles Luft- und Raumfahrt - Metallische Werkstoffe - Regeln
pour la rédaction et la présentation des normes de für das Erstellen und die Gestaltung von
matériaux - Partie 005 : Règles spécifiques aux aciers Werkstoffnormen - Teil 005: Besondere Regeln für
Stähle
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, Türkiye 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
© 2025 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 4500-005:2025 E
worldwide for CEN national Members.

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prEN 4500-005:2025 (E)
Contents Page
Foreword . 4
Introduction . 5
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Rules for drafting a European standard for aerospace metallic materials. 6
4.1 General. 6
4.2 Title . 6
4.2.1 General. 6
4.2.2 Method of melting . 6
4.2.3 Form entries . 6
4.2.4 Additional information entries . 8
4.3 Introduction . 8
4.4 Scope, normative references, terms and definitions, requirements . 8
4.5 Table 1 . 9
4.5.1 Line 1: Material designation . 9
4.5.2 Line 2: Chemical composition. 9
4.5.3 Line 3: Method of melting . 9
4.5.4 Line 4.1: Form . 9
4.5.5 Line 4.2: Method of production . 9
4.5.6 Line 4.3: Further intended processing . 9
4.5.7 Line 4.4: Limit dimension(s) . 9
4.5.8 Line 5.1: Technical specification . 10
4.5.9 Line 5.2: Dimensional standard . 10
4.5.10 Line 6.1: Delivery condition and Heat treatment . 10
4.5.11 Line 6.2: Delivery condition code . 10
4.5.12 Line 7: Use condition and Heat treatment . 10
4.5.13 Line 8.1: Test sample(s) . 10
4.5.14 Line 8.2: Test piece(s) . 11
4.5.15 Line 8.3: Heat treatment . 11
4.5.16 Line 9: Dimensions concerned . 11
4.5.17 Line 10: Thickness of cladding on each face . 11
4.5.18 Line 11: Direction of test piece . 11
4.5.19 Lines 12 to 16: Tensile (T) . 11
4.5.20 Line 17: Hardness . 11
4.5.21 Line 18: Shear strength . 11
4.5.22 Line 19: Bending . 11
4.5.23 Line 20: Impact strength . 11
4.5.24 Lines 21 to 26: Creep (C) . 11
4.5.25 Line 27 . 12
4.5.26 Line 29: Reference heat treatment . 12
4.5.27 Lines 30 to 94 . 12
4.5.28 Line 95: Marking inspection . 12
4.5.29 Line 96: Dimensional inspection . 12
4.5.30 Line 97 . 12
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4.5.31 Line 98: Notes . 12
4.5.32 Line 99: Typical use . 12
4.5.33 Line 100: Product qualification . 12
4.6 Bibliography . 12
Annex A (informative) Completion of title page . 13
Annex B (informative) Completion of the introduction . 14
Annex C (informative) Completion of the scope, normative references, terms and
definitions, and requirements . 15
Annex D (informative) Completion of Table 1 . 16
Annex E (informative) Completion of the bibliography. 23
Bibliography . 24
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Foreword
This document (prEN 4500-005:2025) has been prepared by the Technical Committee ASD-STAN/D04
“Material”.
This document is currently submitted to the CEN Enquiry
This document will supersede EN 4500-005:2024.
prEN 4500-005:2025 includes the following significant technical changes with respect to
EN 4500-005:2024:
— addition of the missing text in the scope;
— addition of the lines 4.3 "Further intended processing" and 5.2 "Dimensional standard" in the body
of the document and in Annex D;
— addition of introductory sentences to Table 1 in Annex C to highlight the fact that the table is a
normative element and that all the documents that it lists shall be applied;
— overall editorial modifications to give clarity on the normative or informative nature of the
references made to other documents or Annexes;
— restructuring of the document and simplification of the Template to achieve a single continuous
table.
This document has been prepared under a standardization request addressed to CEN by the European
Commission. The Standing Committee of the EFTA States subsequently approves these requests for its
Member States.
oSIST prEN 4500-005:2025
prEN 4500-005:2025 (E)
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.
The EN 4500 series (Aerospace series — Metallic materials — Rules for drafting and presentation of
material standards) is composed by the following documents:
— General rules EN 4500-001;
— Specific rules for aluminium, aluminium alloys and EN 4500-002;
magnesium alloys
— Specific rules for heat-resisting alloys EN 4500-003;
— Specific rules for titanium and titanium alloys EN 4500-004;
— Specific rules for steels EN 4500-005;
— Specific rules for filler metals for welding EN 4500-002 to EN 4500-005;
— Specific rules for filler metals for brazing EN 4500-006.
Basis for the drafting of all European standards is CEN/CENELEC Internal Regulations — Part 3:
Principles and rules for the structure and drafting of CEN and CENELEC documents.
1 Scope
The EN 4500 series specifies the rules for the drafting and presentation of metallic material standards
for aerospace applications.
This Part 005 specifies the “Specific rules for steels”.
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 4259, Aerospace series - Metallic materials - Definition of general terms
EN 4500-001, Aerospace series - Metallic materials - Rules for drafting and presentation of material
standards - Part 001: General rules
EN 10083-1, Steels for quenching and tempering — Part 1: General technical delivery conditions
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 4259 and EN 4500-001 apply.
ISO and IEC maintain terminology 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/
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prEN 4500-005:2025 (E)
4 Rules for drafting a European standard for aerospace metallic materials
4.1 General
Examples given in Annexes are only intended to illustrate the rules for drafting and presentation and
might not correspond to real standardized EN semi-finished products. Technological development can
require the use of terms additional to those listed.
4.2 Title
4.2.1 General
Shall be according to EN 4500-001.
See also Annex A of this document.
The following are examples of descriptions which shall be used.
4.2.2 Method of melting
Complete in accordance with EN 4500-001 using one or more of the following terms:
— air melted;
— vacuum induction melted;
— vacuum refined;
— vacuum arc remelted;
— electro-slag remelted;
— consumable electrode remelted.
4.2.3 Form entries
a) Sheets, strips, plates:
The terms may be qualified with one of the following terms:
1) rolled;
2) cold rolled;
3) hot rolled;
b) Bars:
The term may be qualified with one or more of the following terms:
1) rolled;
2) hot rolled;
3) cold rolled;
4) drawn;
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prEN 4500-005:2025 (E)
5) extruded;
6) forged;
c) Sections:
The term may be qualified with one or more of the following terms:
1) rolled;
2) hot rolled;
3) cold rolled;
4) drawn;
5) extruded;
6) forged;
d) Tubes:
The term may be qualified with one or more of the following terms:
1) rolled;
2) drawn;
3) extruded;
4) seamless;
5) welded;
e) Wires:
The term may be qualified with one or more of the following terms:
1) hot drawn;
2) cold drawn;
3) hot rolled;
4) cold rolled;
f) Forging stock;
g) Forgings;
h) Remelting stock;
i) Castings:
The term may be qualified with one or more of the following terms:
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prEN 4500-005:2025 (E)
1) sand;
2) chill;
3) investment;
4) centrifugal;
5) hot isostatically pressed (hipped);
j) Rings:
The term may be qualified with one or more of the following terms:
1) rolled;
2) forged;
3) welded.
4.2.4 Additional information entries
— For structural applications;
— For pressure applications;
— For the manufacturing of fasteners;
— For machining;
— For forged rings;
— For rolled rings;
— For welding;
— For the manufacturing of bearings;
— For carburizing or other thermo-chemical treatment;
— For nitriding.
4.3 Introduction
Shall be according to EN 4500-001.
See also Annex B of this document.
4.4 Scope, normative references, terms and definitions, requirements
Shall be according to EN 4500-001.
See also Annex C of this document.
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prEN 4500-005:2025 (E)
4.5 Table 1
4.5.1 Line 1: Material designation
Shall be according to EN 4500-001.
See also Annex D of this document.
4.5.2 Line 2: Chemical composition
The chemical composition shall be written in accordance with EN 4500-001 and the order of
presentation of elements shall conform to the following rules:
— C, Si, Mn, P, S, Cr, Mo, Ni;
— Al, As, B, Co, Cu, N, Nb, Pb, Sn, Ti, V, W, Zr;
— all other elements except hydrogen shall be written in alphabetical order of their chemical symbols;
— H;
— ratio and/or total of above elements.
...