EN 3762:2022

Aerospace series - Heat-resisting alloy X6NiCrTiMnMoV26-15 (1.4944) - Softened and cold worked - Wire for forged fasteners - D ≤ 15 mm - 1 100 MPa ≤ Rm ≤ 1 300 MPa

This document specifies the requirements relating to:
Heat-resisting alloy X6NiCrTiMnMoV26-15 (1.4944)
Softened and cold worked
Wire for forged fasteners
D ≤ 15 mm
1 100 MPa ≤ Rm ≤ 1 300 MPa
for aerospace applications.

Luft- und Raumfahrt - Hochwarmfeste Legierung X6NiCrTiMnMoV26-15 (1.4944) - Weichgeglüht und kaltverfestigt - Draht zum Stauchen für Verbindungselemente - D ≤ 15 mm - 1 100 MPa ≤ Rm ≤ 1 300 MPa

Dieses Dokument legt die Anforderungen an:
Hochwarmfeste Legierung X6NiCrTiMnMoV26-15 (1.4944)
Weichgeglüht und kaltverfestigt
Draht zum Stauchen für Verbindungselemente
D ≤ 15 mm
1 100 MPa ≤ Rm ≤ 1 300 MPa
für Anwendungen in der Luft- und Raumfahrt fest.

Série aérospatiale - Alliage résistant à chaud X6NiCrTiMnMoV26-15 (1.4944) - Adouci et écroui - Fils pour éléments de fixation forgés - D ≤ 15 mm - 1 100 MPa ≤ Rm ≤ 1 300 MPa

Le présent document spécifie les exigences relatives à :
Alliage résistant à chaud X6NiCrTiMnMoV26-15 (1.4944)
Adouci et écroui
Fils pour éléments de fixation forgés
D ≤ 15 mm
1 100 MPa ≤ Rm ≤ 1 300 MPa
pour les applications aérospatiales.

Aeronavtika - Toplotno odporna zlitina X6NiCrTiMnMoV26-15 (1.4944) - Popuščana in hladno obdelana - Žice za kovane vezne elemente - D ≤ 15 mm - 1100 MPa ≤ Rm ≤ 1300 MPa

Ta dokument določa zahteve, ki se navezujejo na:
toplotno odporno zlitino X6NiCrTiMnMoV26-15 (1.4944),
popuščano in hladno obdelano,
žice za kovane vezne elemente,
D ≤ 15 mm,
1100 MPa ≤ Rm ≤ 1300 MPa,
za uporabo v aeronavtiki.

General Information

• Status: Published
• Publication Date: 20-Dec-2022
• ICS: 49.025.05 - Ferrous alloys in general
• Technical Committee: ASD-STAN - Aerospace
• Drafting Committee: ASD-STAN/D 4/S 3 - Steels & Heat Resisting Alloys
• Current Stage: 6060 - Definitive text made available (DAV) - Publishing
• Start Date: 21-Dec-2022
• Completion Date: 21-Dec-2022
• Ref Project: SIST EN 3762:2023 - Aerospace series - Heat-resisting alloy X6NiCrTiMnMoV26-15 (1.4944) - Softened and cold worked - Wire for forged fasteners - D ≤ 15 mm - 1 100 MPa ≤ Rm ≤ 1 300 MPa

Overview

EN 3762:2022 is a CEN aerospace-series standard that specifies requirements for heat-resisting alloy X6NiCrTiMnMoV26-15 (1.4944) in the form of softened and cold worked wire for forged fasteners. The standard covers wire up to D ≤ 15 mm intended for aerospace applications with a specified tensile strength range of 1 100 MPa ≤ Rm ≤ 1 300 MPa. It is part of the EN metallic material standards for aerospace and references EN 4700-004 for technical specification of wire products.

Key topics and requirements

• Material designation: X6NiCrTiMnMoV26-15 (1.4944), a high-temperature, heat-resisting nickel-chromium alloy.
• Form and size: Wire for forging operations, maximum diameter ≤ 15 mm.
• Mechanical strength: Specified ultimate tensile strength 1 100–1 300 MPa; proof stress requirements and elongation are included in the standard (see EN 3762:2022 for full test values).
• Delivery condition: Softened and cold worked; typical softening heat treatment indicated (e.g., 900 °C / t = 1 h / air cooling or faster) and cold work between 15 % and 25 % at temperatures ≤ 870 °C.
• Melting and production methods: Allowed melting methods include air melted or vacuum induction melted with consumable electrode remelt (VIM + ESR style routes referenced).
• Testing and inspection: Acceptance sampling plan and inspection levels are included; visual testing (VT) and dimensional checks are specified. Product qualification program to be agreed between manufacturer and purchaser.
• Reference heat treatments: Precipitation treatment option and reference cycles are shown (e.g., +720 °C / t = 16 h / AC) - consult the standard for exact use cases.
• Normative cross-references: EN 4700-004, EN 4258 and EN 4500-003 guide technical spec, organization and drafting rules for aerospace metallic materials.

Applications and users

• Primary application: Feedstock wire for forging high-strength aerospace fasteners (bolt blanks, rivets and similar forged connection elements) where heat resistance and high tensile strength are required.
• Who uses EN 3762:2022: Aerospace fastener manufacturers, forging shops, material suppliers, procurement specialists, design and materials engineers, quality/inspection teams, and certification bodies involved in aerospace component supply chains.
• Practical value: Ensures consistent chemical composition, mechanical properties and production practice for wires used in critical forged fasteners-helping achieve traceability, repeatable forging behavior and component reliability at elevated temperatures.

Related standards

• EN 4700-004 - Aerospace series - Heat resisting alloys - Wrought products - Technical specification - Part 004: Wire
• EN 4258 - Organization of aerospace metallic material standards
• EN 4500-003 - Rules for drafting aerospace heat-resisting alloy standards

Keywords: EN 3762:2022, X6NiCrTiMnMoV26-15, heat-resisting alloy, wire for forged fasteners, aerospace standard, cold worked wire, tensile strength 1100–1300 MPa.

Standards Content (Sample)

SLOVENSKI STANDARD
01-marec-2023
Aeronavtika - Toplotno odporna zlitina X6NiCrTiMnMoV26-15 (1.4944) - Popuščana
in hladno obdelana - Žice za kovane vezne elemente - D ≤ 15 mm - 1100 MPa ≤ Rm
≤ 1300 MPa
Aerospace series - Heat-resisting alloy X6NiCrTiMnMoV26-15 (1.4944) - Softened and
cold worked - Wire for forged fasteners - D ≤ 15 mm - 1 100 MPa ≤ Rm ≤ 1 300 MPa
Luft- und Raumfahrt - Hochwarmfeste Legierung X6NiCrTiMnMoV26-15 (1.4944) -
Weichgeglüht und kaltverfestigt - Draht zum Stauchen für Verbindungselemente - D ≤ 15
mm - 1 100 MPa ≤ Rm ≤ 1 300 MPa
Série aérospatiale - Alliage résistant à chaud X6NiCrTiMnMoV26-15 (1.4944) - Adouci et
écroui - Fils pour éléments de fixation forgés - D ≤ 15 mm - 1 100 MPa ≤ Rm ≤ 1 300
MPa
Ta slovenski standard je istoveten z: EN 3762:2022
ICS:
49.025.05 Železove zlitine na splošno Ferrous alloys in general
77.140.65 Jeklene žice, jeklene vrvi in Steel wire, wire ropes and
verige link chains
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 3762
EUROPEAN STANDARD
NORME EUROPÉENNE
December 2022
EUROPÄISCHE NORM
ICS 49.025.05
English Version
Aerospace series - Heat-resisting alloy
X6NiCrTiMnMoV26-15 (1.4944) - Softened and cold
worked - Wire for forged fasteners - D ≤ 15 mm - 1 100
MPa ≤ R ≤ 1 300 MPa
m
Série aérospatiale - Alliage résistant à chaud Luft- und Raumfahrt - Hochwarmfeste Legierung
X6NiCrTiMnMoV26-15 (1.4944) - Adouci et écroui - X6NiCrTiMnMoV26-15 (1.4944) - Weichgeglüht und
Fils pour éléments de fixation forgés - D ≤ 15 mm - 1 kaltverfestigt - Draht zum Stauchen für
Verbindungselemente - D ≤ 15 mm - 1 100 MPa ≤ Rm ≤
100 MPa ≤ Rm ≤ 1 300 MPa
1 300 MPa
This European Standard was approved by CEN on 24 July 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,
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United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATIO N

EUROPÄISCHES KOMITEE FÜR NORMUN G

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 3762:2022 E
worldwide for CEN national Members.

EN 3675:2022 (E)
Contents Page
European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Acceptance sampling plan . 5
Bibliography . 9

European foreword
This document (EN 3762:2022) 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 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 month year June 2023, and conflicting national
standards shall be withdrawn
...