SIST EN 3361:2024

Aerospace series - Steel X5CrNiCu15 5 (1.4545) - Consumable electrode remelted - Solution treated and precipitation treated - Sheets and strips - a ≤ 6mm - 1 070 MPa ≤ Rm ≤ 1 220 MPa

This document specifies the requirements relating to:
Steel X5CrNiCu15-5 (1.4545)
Consumable electrode remelted
Solution treated and precipitation treated
Sheets and strips
a ≤ 6 mm
1 070 MPa ≤ Rm ≤ 1 220 MPa
for aerospace applications.

Luft- und Raumfahrt - Stahl X5CrNiCu15-5 (1.454) - Mit selbstverzehrender Elektrode umgeschmolzen - Lösungsgeglüht und ausscheidungsgehärtet - Bleche und Bänder - a ≤ 6 mm - 1 070 MPa ≤ Rm ≤ 1 220 MPa

Dieses Dokument legt die Anforderungen an:
Stahl X5CrNiCu15 5 (1.4545)
Mit selbstverzehrender Elektrode umgeschmolzen
Lösungsgeglüht und ausscheidungsgehärtet
Bleche und Bänder
a ≤ 6 mm
1 070 MPa ≤ Rm ≤ 1 220 MPa
für Anwendungen in der Luft- und Raumfahrt fest.

Série aérospatiale - Acier X5CrNiCu15-5 (1.4545) - Refondu à l'électrode consommable - Mis en solution et vieilli - Tôles et bandes - a ≤ 6 mm - 1 070 MPa ≤ Rm ≤ 1 220 MPa

Le présent document spécifie les exigences relatives à :
Acier X5CrNiCu15-5 (1.4545)
Refondu à l'électrode consommable
Mis en solution et précipité
Tôles et bandes
a ≤ 6 mm
1 070 MPa ≤ Rm ≤ 1 220 MPa
pour les applications aérospatiales.

Aeronavtika - Jeklo X5CrNiCu15-5 (1.4545) - Pretaljeno s talilno elektrodo - Žarjeno v topilu in utrjeno - Pločevina in trakovi a ≤ 6mm - 1070 MPa ≤ Rm ≤ 1220 MPa

Ta dokument določa zahteve, ki se navezujejo na:
jeklo X5CrNiCu15-5 (1.4545),
pretaljeno s taljivo elektrodo,
žarjeno v topilu in utrjeno,
pločevino in trakove,
a ≤ 6 mm,
1070 MPa ≤ Rm ≤ 1220 MPa,
za uporabo v aeronavtiki.

General Information

• Status: Published
• Public Enquiry End Date: 30-Nov-2021
• Publication Date: 29-Aug-2024
• ICS: 49.025.10 - Steels
• ICS: 77.140.50 - Flat steel products and semi-products
• Technical Committee: I13 - Imaginarni 13
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 29-Aug-2024
• Due Date: 03-Nov-2024
• Completion Date: 30-Aug-2024
• Ref Project: EN 3361:2024 - Aerospace series - Steel X5CrNiCu15-5 (1.4545) - Consumable electrode remelted - Solution treated and precipitation treated - Sheets and strips - a ≤ 6mm - 1 070 MPa ≤ Rm ≤ 1 220 MPa

Relations

• Revised: SIST EN 3361:2009 - Aerospace series - Steel FE-PM1802 (X5CrNiCu15-5) - Consumable electrode remelted, solution treated and precipitation treated, sheet and strip a ≤ 6mm, 1 070 MPa ≤ Rm ≤ 1 220 MPa
• Effective Date: 19-Jan-2023

Overview

EN 3361:2024 is a CEN aerospace-series standard that specifies material and quality requirements for steel X5CrNiCu15‑5 (1.4545) in the form of consumable‑electrode remelted, cold‑rolled sheets and strips with thickness a ≤ 6 mm. The standard targets aerospace applications requiring high tensile strength (1 070 MPa ≤ Rm ≤ 1 220 MPa) and controlled microstructure through specified solution and precipitation heat treatments.

Key topics and requirements

• Material and melting method
  • Steel designation: X5CrNiCu15‑5 (1.4545)
  • Melting: consumable electrode remelted
  • Form: sheets and strips, cold rolled
  • Maximum thickness: a ≤ 6 mm
• Chemical composition (selected limits)
  • C ≤ 0.07%, Si ≤ 1.00%, Mn ≤ 1.00%, P ≤ 0.030%, S ≤ 0.015%
  • Cr ≈ 15.0 … 15.5%, Mo ≤ 0.50%, Ni and Cu controlled (Ni up to 5.5%, Cu up to 4.5%), Nb+Ta ≤ 0.45%
• Heat treatments
  • Solution treatment: 1 025–1 055 °C for 30–40 min, air cooling (AC) or oil quench (OQ), cool to ≤ 30 °C
  • Precipitation (age) treatment: 535–565 °C for ≥ 4 h, air cooling
  • Delivery condition codes: W (solution treated) and U (solution + precipitation treated)
• Mechanical and physical characteristics
  • Tensile strength Rm: 1 070–1 220 MPa
  • Proof stress Rp0.2: ≥ 1 000 MPa (where applicable)
  • Minimum elongation and reduction of area specified depending on thickness
  • Hardness limits are prescribed (see standard for exact HB/HV/HRC equivalences)
• Microstructure and quality
  • δ‑ferrite content ≤ 2%
  • Non‑metallic inclusion requirements per EN 2951 (category 4)
  • Visual, dimensional and marking inspections per EN 4700‑001

Applications and who uses it

EN 3361:2024 is intended for:

• Aerospace OEMs, suppliers and subcontractors specifying high‑strength stainless sheet/strip for structural use
• Materials engineers and design teams selecting alloys for demanding aerospace environments
• Quality, inspection and procurement teams verifying supplier conformity and acceptance testing
• Certification and qualification programs for semi‑finished metallic products in aerospace

Typical use cases include high‑strength aerospace sheet and strip components where controlled mechanical properties, microstructure and repeatable heat treatment are essential.

Related standards

• EN 4700‑001 - Technical specification for wrought steel plates, sheets and strips (aerospace)
• EN 2951 - Micrographic determination of non‑metallic inclusions
• EN 2043 - Semi‑finished product qualification (aerospace)
• EN 4258, EN 4500‑005 - Series organization and drafting rules for aerospace metallic material standards

Keywords: EN 3361:2024, X5CrNiCu15‑5, 1.4545, aerospace steel, consumable electrode remelted, solution treated, precipitation treated, sheets and strips, 1 070 MPa ≤ Rm ≤ 1 220 MPa, CEN.

Standards Content (Sample)

SLOVENSKI STANDARD
01-oktober-2024
Aeronavtika - Jeklo X5CrNiCu15-5 (1.4545) - Pretaljeno s talilno elektrodo - Žarjeno
v topilu in utrjeno - Pločevina in trakovi a ≤ 6mm - 1070 MPa ≤ Rm ≤ 1220 MPa
Aerospace series - Steel X5CrNiCu15 5 (1.4545) - Consumable electrode remelted -
Solution treated and precipitation treated - Sheets and strips - a ≤ 6mm - 1 070 MPa ≤
Rm ≤ 1 220 MPa
Luft- und Raumfahrt - Stahl X5CrNiCu15-5 (1.454) - Mit selbstverzehrender Elektrode
umgeschmolzen - Lösungsgeglüht und ausscheidungsgehärtet - Bleche und Bänder - a
≤ 6 mm - 1 070 MPa ≤ Rm ≤ 1 220 MPa
Série aérospatiale - Acier X5CrNiCu15-5 (1.4545) - Refondu à l'électrode consommable
- Mis en solution et vieilli - Tôles et bandes - a ≤ 6 mm - 1 070 MPa ≤ Rm ≤ 1 220 MPa
Ta slovenski standard je istoveten z: EN 3361:2024
ICS:
49.025.10 Jekla Steels
77.140.50 Ploščati jekleni izdelki in Flat steel products and semi-
polizdelki products
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 3361
EUROPEAN STANDARD
NORME EUROPÉENNE
August 2024
EUROPÄISCHE NORM
ICS 49.025.10 Supersedes EN 3361:2007
English Version
Aerospace series - Steel X5CrNiCu15-5 (1.4545) -
Consumable electrode remelted - Solution treated and
precipitation treated - Sheets and strips - a  6mm - 1 070
MPa  Rm  1 220 MPa
Série aérospatiale - Acier X5CrNiCu15-5 (1.4545) - Luft- und Raumfahrt - Stahl X5CrNiCu15-5 (1.454) -
Refondu à l'électrode consommable - Mis en solution et Mit selbstverzehrender Elektrode umgeschmolzen -
précipité - Tôles et bandes - a  6 mm - 1 070 MPa  Lösungsgeglüht und ausscheidungsgehärtet - Bleche
und Bänder - a  6 mm - 1 070 MPa  Rm  1 220 MPa
Rm  1 220 MPa
This European Standard was approved by CEN on 3 June 2024.

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, Türkiye 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
© 2024 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 3361:2024 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 . 6

European foreword
This document (EN 3361:2024) has been prepared by 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 document shall be given the status of a national standard, either by publication of an identical text
or by endorsement, at the latest by February 2025, and conflicting national standards shall be
withdrawn at the latest by February 2025.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN 3361:2007.
The main changes with respect to the previous edition are as follows:
— EN
...