kSIST FprEN 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
• Public Enquiry End Date: 30-Oct-2025
• ICS: 01.120 - Standardization. General rules
• ICS: 49.025.10 - Steels
• Technical Committee: I13 - Imaginarni 13
• Current Stage: 5020 - Formal vote (FV) (Adopted Project)
• Start Date: 11-May-2026
• Due Date: 29-Jun-2026
• Completion Date: 11-May-2026
• Ref Project: EN 4500-005:2026 - Aerospace series - Metallic materials - Rules for drafting and presentation of material standards - Part 005: Specific rules for steels

• Referred By: SIST 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
• Referred By: SIST EN ISO 22097:2023 - Thermal insulation for buildings - Reflective insulation products - Determination of thermal performance (ISO 22097:2023)
• Effective Date: 28-Jan-2026
• Revises: SIST 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

kSIST FprEN 4500-005:2026 is the SIST publication of the draft European Standard prEN 4500-005 for aerospace metallic materials. It sets the specific rules for drafting and presenting material standards for steels in the EN 4500 series. Engineers, quality managers, and buyers use it when they need to write, check, or interpret a steel material standard for aerospace applications.

What does kSIST FprEN 4500-005:2026 specify?

kSIST FprEN 4500-005:2026 specifies the rules for drafting and presenting aerospace metallic material standards, with Part 005 focused on steels. It is a drafting standard, so its job is to tell authors how to structure a steel material standard rather than to define one steel grade.

The document is organized around a short front matter, Clauses 1 to 4, and informative Annexes A to E. Clause 4 is the core of the document because it lays out the title, introduction, scope, references, terms, and the structure of Table 1.

Annex	What it covers
A	Completion of the 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 also makes clear that the annex examples are illustrative and may not correspond to real standardized EN semi-finished products. That matters in practice because users should follow the rules, not copy the example blindly.

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

Build the title and opening text in the prescribed way

Clause 4.2 tells drafters how to build the title of an aerospace steel material standard. The title can include the method of melting, the form, and additional information entries, so the standard can identify the material unambiguously.

Clause 4.2.2 lists the allowed melting terms, including air melted, vacuum induction melted, vacuum refined, vacuum arc remelted, electro-slag remelted, and consumable electrode remelted. In practice, this tells the reader how the steel was made, which is important for selection, traceability, and procurement.

Clause 4.2.3 lists the permitted form terms for sheets, strips, plates, bars, sections, tubes, wires, forging stock, forgings, remelting stock, castings, and rings. Clause 4.2.4 adds optional application statements such as structural applications, pressure applications, fasteners, machining, bearings, welding, carburizing, and nitriding.

Complete Table 1 in the required order

Clause 4.5 turns Table 1 into the main template for a steel standard. The order of the lines matters because it keeps different steel standards consistent and easier to compare.

Clause 4.5.2 sets the order for chemical composition: the common steel elements come first, then other alloying elements, then hydrogen, then any ratio or total of the listed elements. That matters because the same composition should be presented the same way in every standard.

Clause 4.4 and 4.5.7 use EN 10083-1 to determine the equivalent diameter D and the limiting dimensions for steels. For users, this is the rule that defines the size range covered by the material standard.

Clauses 4.5.10 to 4.5.12 define the vocabulary for delivery condition, heat treatment, and use condition. The standard uses terms such as not heat treated, annealed, solution treated, precipitation treated, hardened, tempered, sub-zero treated, cold worked, descaled, machined, and ground, so the supply condition is stated without ambiguity.

Use the property and qualification lines correctly

Clause 4.5 shows that Table 1 can carry many kinds of requirements, including tensile, hardness, shear strength, bending, impact strength, and creep, as well as marking inspection, dimensional inspection, notes, typical use, and product qualification. For a real steel standard, this is where the performance and verification needs are written down.

Some lines are not used for steel, such as line 10 on cladding thickness and lines 27 and 97. That is useful to drafters because it stops them from filling the template with irrelevant entries.

Annex C says the requirements of Table 1 shall be applied and that the documents listed in Table 1 shall be applied. Annex D then shows a worked steel example, including composition, heat treatment, test conditions, microstructure, hardenability, density, elastic modulus, fatigue, inclusion content, and crack propagation.

Understand the qualification rules

Clause 4.5.33 and Annex D show how product qualification is handled. The qualification programme is agreed between manufacturer and purchaser, and the example links product qualification to the presence or absence of qualification requirements in the technical specification. In practice, this is the part people use when they need to prove that a product route is acceptable before supply.

What terms does kSIST FprEN 4500-005:2026 define?

Clause 3 uses the general terms from EN 4259 and EN 4500-001. In this document, the most important working terms are the ones that shape the material standard.

• Material designation - the named steel grade being standardized, such as the example steel in Annex D.
• Method of melting - the melting route used to produce the steel, which is stated in the title and Table 1.
• Delivery condition - the condition in which the material is supplied, including any heat treatment or finishing.
• Use condition - the condition expected for service or further processing.
• Reference heat treatment - the heat treatment chosen as the reference state for the material standard.
• Product qualification - the agreed programme used to show that the product meets the qualification requirements.
• Dimensional standard - the dimensional document that applies to the product form and size.

Who uses kSIST FprEN 4500-005:2026?

kSIST FprEN 4500-005:2026 is used by people who draft aerospace material standards, especially within the EN 4500 series. It is also used by aerospace steel producers, specifiers, purchasers, and quality teams who need a common way to state composition, condition, tests, and qualification.

In practice, it helps when writing a steel standard, reviewing a supplier specification, preparing a qualification programme, or checking whether a product description is complete and consistent.

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

The document states that it will supersede EN 4500-005:2024. The listed significant technical changes are:

• addition of the missing text in the scope;
• addition of line 4.3, “Further intended processing”, and line 5.2, “Dimensional standard”, in the body and in Annex D;
• addition of introductory sentences to Table 1 in Annex C to show that the table is normative and that the listed documents shall be applied;
• editorial changes to clarify whether references to other documents or annexes are normative or informative;
• restructuring and simplification of the template to create a single continuous table.

Which standards are used with kSIST FprEN 4500-005:2026?

The document relies on a small core of normative references and several companion documents used in the series and in the worked examples.

• EN 4259 - general terms for aerospace metallic materials.
• EN 4500-001 - the general drafting rules for aerospace metallic material standards.
• EN 10083-1 - the steel reference used for equivalent diameter and related delivery-condition rules.
• EN 4258 - the general organization of aerospace metallic-material standardization.
• EN 4700-001 / -002 / -003 / -004 - companion technical specifications for plate, sheet and strip, bars and sections, tube, and wire.
• EN 2002-001 - tensile testing at ambient temperature.
• EN 2043 - semi-finished product qualification requirements.
• EN 2103-3, EN 2957, EN 6018, EN ISO 642, EN ISO 3651-1, EN ISO 12737, ISO 9649, ASTM E45, EN 10027-1, EN 10027-2 - supporting methods and designation references used in the annex examples and bibliography.

What does the kSIST FprEN 4500-005:2026 document contain?

The document contains the rules for drafting an aerospace steel material standard, plus a detailed Table 1 template covering designation, composition, melting route, form, production route, dimensions, delivery condition, test samples, test pieces, property requirements, inspections, notes, typical use, and product qualification. It also contains informative annexes that show how to complete the title page, introduction, scope, requirements, Table 1, and bibliography.

Annex D is especially useful because it shows a realistic worked example for a steel grade and the kinds of test and quality lines that a steel standard may need. That makes the document a practical drafting aid for standard writers and a reading guide for anyone checking an aerospace steel specification.

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.

oSIST prEN 4500-005:2025
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
oSIST prEN 4500-005:2025
prEN 4500-005:2025 (E)
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
oSIST prEN 4500-005:2025
prEN 4500-005:2025 (E)
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/
oSIST prEN 4500-005:2025
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;
oSIST prEN 4500-005:2025
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:
oSIST prEN 4500-005:2025
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.
oSIST prEN 4500-005:2025
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.
...