EN 3468:2019

Aerospace series - Steel X8CrNiTi18-10 (1.4878/1.4544) - Softened - 500 MPa ≤ Rm ≤ 700 MPa - Forgings - De ≤ 100 mm

This document specifies the requirements relating to:
Steel X8CrNiTi18-10 (1.4878/1.4544)
Softened
500 MPa ≤ Rm ≤ 700 MPa
Forgings
De ≤ 100 mm
for aerospace applications.
ASD-STAN designation: FE-PA13.

Luft- und Raumfahrt - Stahl X8CrNiTi18-10 (1.4878/1.4544) - Abgeschreckt - 500 MPa ≤ Rm ≤ 700 MPa - Schmiedestücke - De ≤ 100 mm

Dieses Dokument legt die Anforderungen an:
Stahl X8CrNiTi18-10 (1.4878/1.4544)
Abgeschreckt
500 MPa ≤ Rm ≤ 700 MPa
Schmiedestücke
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) - Adouci - 500 MPa ≤ Rm ≤ 700 MPa - Pièces forgées ou matricées - De ≤ 100 mm

Le présent document spécifie les exigences relatives à :
Acier X8CrNiTi18-10 (1.4878/1.4544) Adouci 500 MPa ≤ Rm ≤ 700 MPa Pièces forgées ou matricées De ≤ 100 mm
pour applications aérospatiales.
Désignation ASD-STAN : FE-PA13.

Aeronavtika - Jeklo X8CrNiTi18-10 (1.4878/1.4544) - Popuščano - 500 MPa ≤ Rm ≤ 700 MPa - Izkovki - De ≤ 100 mm

Ta dokument določa zahteve, ki se navezujejo na: jeklo X8CrNiTi18-10 (1.4878/1.4544), popuščano, 500 MPa ≤ Rm ≤ 700 MPa, izkovki, De ≤ 100 mm, za uporabo v aeronavtiki. Oznaka ASD-STAN: FE-PA13.

General Information

• Status: Published
• Publication Date: 26-Nov-2019
• Withdrawal Date: 30-May-2020
• ICS: 49.025.10 - Steels
• Technical Committee: ASD-STAN - Aerospace
• Drafting Committee: ASD-STAN/D 4 - Metallic
• Current Stage: 6060 - Definitive text made available (DAV) - Publishing
• Start Date: 27-Nov-2019
• Completion Date: 27-Nov-2019
• Ref Project: SIST EN 3468:2020 - Aerospace series - Steel X8CrNiTi18-10 (1.4878/1.4544) - Softened - 500 MPa ≤ Rm ≤ 700 MPa - Forgings - De ≤ 100 mm

Overview

EN 3468:2019 (ASD‑STAN designation FE‑PA13) is a CEN aerospace series standard that defines the requirements for aerospace forgings made from steel X8CrNiTi18‑10 (1.4878 / 1.4544) in the softened (annealed/solution‑treated) condition. The standard applies to forgings with an external dimension De ≤ 100 mm and specifies chemical composition, heat treatment, mechanical properties and inspection points for parts intended for aerospace applications.

Key topics and technical requirements

• Material designation: Steel X8CrNiTi18‑10 (1.4878 / 1.4544) - a corrosion‑resisting austenitic stainless steel, weldable.
• Chemical composition (typical limits):
  • C ≤ 0.08%, Si ≤ 1.00%, Mn ≤ 2.00%, P ≤ 0.035%, S ≤ 0.025%
  • Cr 17.0–19.0%, Ni 9.0–11.0%, Ti ≤ 0.60%, Fe balance
• Form and size: Forgings (forging stock and forgings) with De ≤ 100 mm.
• Melting method: Air melted.
• Delivery condition / Heat treatment: Softened (reference heat treatment 1 050 °C ≤ θ ≤ 1 100 °C / AQ or WQ).
• Mechanical properties:
  • Proof stress Rp0.2 ≥ 210 MPa
  • Tensile strength Rm between 500 MPa and 700 MPa
  • Elongation A ≥ 40%
  • Hardness HB ≤ 197 (HV ≤ 207; HV specified for De ≤ 5 mm)
  • Impact energy ≥ 50 J (requirements listed)
• Test orientation and sampling: Test direction L or LT per EN 2157‑3; dimensional, marking and other inspections specified.
• Product qualification: Qualification programme to be agreed between manufacturer and purchaser.

Applications and practical value

EN 3468:2019 is targeted at manufacturers, procurement engineers, design engineers and quality managers in the aerospace supply chain who need standardized requirements for small forgings made from X8CrNiTi18‑10 stainless steel. Typical practical uses include:

• Corrosion‑resistant structural or secondary components in aircraft and aerospace systems where a combination of ductility, toughness and moderate strength (500–700 MPa) is required.
• Parts requiring reliable welding and consistent metallurgical quality supplied under a harmonized European specification.

Who should use this standard

• Aerospace forgings manufacturers and foundries producing FE‑PA13 forgings.
• Purchasing and quality assurance teams specifying material acceptance criteria.
• Design and stress engineers selecting material grades for small forged components (De ≤ 100 mm).
• Certification and regulatory bodies referencing aerospace metallic material standards.

Related standards

• EN 2157‑3 - Aerospace series: Steel - Forging stock and forgings - Technical specification (pre‑production and production forgings)
• EN 3482 - Aerospace series: Steel FE‑PA13 - Annealed / softened reference heat treatment
• EN 4258 and EN 4500‑005 - Organization and drafting rules for aerospace metallic material standards

Keywords: EN 3468:2019, X8CrNiTi18‑10, aerospace steel, forgings, softened condition, 500–700 MPa, FE‑PA13, CEN, ASD‑STAN.

Standards Content (Sample)

SLOVENSKI STANDARD
01-februar-2020
Aeronavtika - Jeklo X8CrNiTi18-10 (1.4878/1.4544) - Popuščano - 500 MPa ≤ Rm ≤
700 MPa - Izkovki - De ≤ 100 mm
Aerospace series - Steel X8CrNiTi18-10 (1.4878/1.4544) - Softened - 500 MPa ≤ Rm ≤
700 MPa - Forgings - De ≤ 100 mm
Luft- und Raumfahrt - Stahl X8CrNiTi18-10 (1.4878/1.4544) - Abgeschreckt - 500 MPa ≤
Rm ≤ 700 MPa - Schmiedestücke - De ≤ 100 mm
Série aérospatiale - Acier X8CrNiTi18-10 (1.4878/1.4544) - Adouci - 500 MPa ≤ Rm ≤
700 MPa - Pièces forgées ou matricées - De ≤ 100 mm
Ta slovenski standard je istoveten z: EN 3468:2019
ICS:
49.025.10 Jekla Steels
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 3468
EUROPEAN STANDARD
NORME EUROPÉENNE
November 2019
EUROPÄISCHE NORM
ICS 49.025.10
English Version
Aerospace series - Steel X8CrNiTi18-10 (1.4878/1.4544) -
Softened - 500 MPa ≤ Rm ≤ 700 MPa - Forgings - De ≤ 100
mm
Série aérospatiale - Acier X8CrNiTi18-10 Luft- und Raumfahrt - Stahl X8CrNiTi18-10
(1.4878/1.4544) - Adouci - 500 MPa ≤ Rm ≤ 700 MPa - (1.4878/1.4544) - Abgeschreckt - 500 MPa ≤ Rm ≤ 700
Pièces forgées ou matricées - De ≤ 100 mm MPa - Schmiedestücke - De ≤ 100 mm
This European Standard was approved by CEN on 21 January 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,
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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 3468:2019 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 . 9

European foreword
This document (EN 3468:2019) 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 Services of the member countries of
ASD, 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 May 2020, and conflicting national standards shall be
withdrawn at the latest by May 2020.
Attention is drawn to the possibility that some of the elements
...