SIST EN 3482:2020

Aerospace series - Steel X8CrNiTi18-10 (1.4878/1.4544) - Annealed - Reference heat treatment: softened - Forging stock - De ≤ 100 mm

This document specifies the requirements relating to:
Steel X8CrNiTi18-10 (1.4878/1.4544)
Annealed
Reference heat treatment: softened
Forging stock
De ≤ 100 mm
for aerospace applications.
ASD-STAN designation: FE-PA13.

Luft- und Raumfahrt - Stahl X8CrNiTi18-10 (1.4878/1.4544) - Geglüht - Referenz-Wärmebehandlung: weichgeglüht - Schmiedevormaterial - De ≤ 100 mm

Dieses Dokument legt die Anforderungen in Bezug auf:
Stahl X8CrNiTi18-10 (1.4878/1.4544)
Geglüht
Referenz-Wärmebehandlung: weichgeglüht
Schmiedevormaterial
De ≤ 100 mm
für Anwendungen in der Luft- und Raumfahrt fest.
ASD-STAN-Bezeichnung: FE-PA13.

Série aérospatiale - Acier X8CrNiTi18-10 (1.4878/1.4544) - Recuit - Traitement thermique de référence : adouci - Produits destinés à la forge - De ≤ 100 mm

Le présent document spécifie les exigences relatives à :
Acier X8CrNiTi18-10 (1.4878/1.4544) Recuit Traitement thermique de référence : adouci Produits destinés à la forge De ≤ 100 mm
pour applications aérospatiales.
Désignation ASD-STAN : FE-PA13.

Aeronavtika - Jeklo X8CrNiTi18-10 (1.4878/1.4544) - Žarjeno - Referenčna toplotna obdelava: popuščano - Material za kovanje - De ≤ 100 mm

Ta dokument določa zahteve, ki se navezujejo na: jeklo X8CrNiTi18-10 (1.4878/1.4544), žarjeno, referenčna toplotna obdelava (popuščano), material za kovanje, De ≤ 100 mm, za uporabo v aeronavtiki. Oznaka ASD-STAN: FE-PA13.

General Information

• Status: Published
• Publication Date: 19-Jan-2020
• ICS: 49.025.10 - Steels
• Technical Committee: I13 - Imaginarni 13
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 06-Dec-2019
• Due Date: 10-Feb-2020
• Completion Date: 20-Jan-2020
• Ref Project: EN 3482:2019 - Aerospace series - Steel X8CrNiTi18-10 (1.4878/1.4544) - Annealed - Reference heat treatment: softened - Forging stock - De ≤ 100 mm

Overview

SIST EN 3482:2020 is a European standard developed by CEN that specifies the requirements for aerospace-grade steel X8CrNiTi18-10 (1.4878/1.4544) in an annealed condition. This steel is supplied as forging stock with a maximum diameter (De) of 100 mm. The standard defines the material's chemical composition, heat treatment reference, mechanical properties, and delivery conditions, supporting the aerospace industry’s demand for high-quality, corrosion-resistant, and weldable stainless steel components.

The standard applies specifically to softened (annealed) X8CrNiTi18-10 steel, ensuring it meets strict aerospace manufacturing criteria. It is harmonized with ASD-STAN designation FE-PA13 and references EN 2157-2 for technical specifications related to forging stock.

Key Topics

• Material Specification
  The primary material covered is austenitic stainless steel X8CrNiTi18-10, characterized by:

  • Chromium content between 17% and 19%
  • Nickel content between 9% and 11%
  • Titanium stabilized with a maximum of 0.6%
  • Carbon limited to a maximum of 0.08% to maintain corrosion resistance

• Heat Treatment

  • Reference heat treatment is a soft annealing process at 1050°C to 1100°C followed by air cooling or oil quenching, ensuring a softened microstructure
  • Delivered in an annealed (softened) state, facilitating forging and further processing

• Mechanical Properties

  • Proof stress (Rp0.2) minimum of 210 MPa
  • Tensile strength range between 500 MPa and 700 MPa
  • Elongation minimum of 40% indicating excellent ductility
  • Hardness limited to 197 HB or 207 HV to ensure material toughness
  • Impact strength ≥ 50 Joules, testing toughness under dynamic loads

• Forging Stock Dimensions

  • Diameter limited to 100 mm or less, suitable for precision forgings in aerospace components

• Testing and Qualification

  • Compliance with EN 2157-2 for technical specifications on steel forging stock
  • Qualification programs to be agreed upon by manufacturer and purchaser for product certification

Applications

SIST EN 3482:2020 applies to aerospace components requiring corrosion-resistant, weldable stainless steel with superior mechanical stability after forging. Typical uses include:

• Structural aerospace parts exposed to diverse and harsh environments
• Engine components where heat treatment and mechanical reliability are critical
• Precision forged parts for airframes and landing gear systems
• High-performance assemblies demanding dimensional stability and material homogeneity
• Components subject to dynamic stresses and requiring reliable impact resistance

This standard ensures manufacturers and aerospace engineers have clear guidance on the chemical, physical, and mechanical properties for producing high-integrity forged steel components compatible with stringent aerospace industry demands.

Related Standards

• EN 2157-2 – Aerospace series steel forging stock technical specifications, referenced for forging stock conditions
• EN 4258 – Aerospace series metallic materials general organization, providing links between EN standards
• EN 4500-005 – Rules for drafting aerospace metallic material standards, informing document structure and content rigor

By adhering to SIST EN 3482:2020, industries involved in aerospace manufacturing benefit from standardized quality, enhancing safety, reliability, and performance while facilitating international trade and regulatory compliance.

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Keywords: SIST EN 3482:2020, aerospace steel, X8CrNiTi18-10, annealed steel, forging stock, aerospace material standard, corrosion-resistant steel, steel heat treatment, aerospace forging, stainless steel for aerospace, steel mechanical properties, ASD-STAN FE-PA13 standard.

Standards Content (Sample)

SLOVENSKI STANDARD
01-februar-2020
Aeronavtika - Jeklo X8CrNiTi18-10 (1.4878/1.4544) - Žarjeno - Referenčna toplotna
obdelava: popuščano - Material za kovanje - De ≤ 100 mm
Aerospace series - Steel X8CrNiTi18-10 (1.4878/1.4544) - Annealed - Reference heat
treatment: softened - Forging stock - De ≤ 100 mm
Luft- und Raumfahrt - Stahl X8CrNiTi18-10 (1.4878/1.4544) - Geglüht - Referenz-
Wärmebehandlung: weichgeglüht - Schmiedevormaterial - De ≤ 100 mm
Série aérospatiale - Acier X8CrNiTi18-10 (1.4878/1.4544) - Recuit - Traitement
thermique de référence : adouci - Produits destinés à la forge - De ≤ 100 mm
Ta slovenski standard je istoveten z: EN 3482:2019
ICS:
49.025.10 Jekla Steels
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 3482
EUROPEAN STANDARD
NORME EUROPÉENNE
November 2019
EUROPÄISCHE NORM
ICS 49.025.10
English Version
Aerospace series - Steel X8CrNiTi18-10 (1.4878/1.4544) -
Annealed - Reference heat treatment: softened - Forging
stock - De ≤ 100 mm
Série aérospatiale - Acier X8CrNiTi18-10 Luft- und Raumfahrt - Stahl X8CrNiTi18-10
(1.4878/1.4544) - Recuit - Traitement thermique de (1.4878/1.4544) - Geglüht - Referenz-
Wärmebehandlung: weichgeglüht -
référence : adouci - Produits destinés à la forge - De ≤
100 mm Schmiedevormaterial - De ≤ 100 mm
This European Standard was approved by CEN on 3 February 2019.

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, Turkey 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
© 2019 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 3482:2019 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 . 5
Bibliography . 8

European foreword
This document (EN 3482:2019) 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 Standard has
received the approval of the National Associations and the Official Se
...