SIST EN 3160:2026

Aerospace series - Steel X5CrNiCu17-4 (1.4542) - Air melted - Solution treated and precipitation treated - Bars - a or D ≤ 200 mm - Rm ≥ 1 310 MPa

This document specifies the requirements relating to:
Steel X5CrNiCu17-4 (1.4542)
Air melted
Solution treated and precipitation treated
Bars
a or D ≤ 200 mm
Rm ≥ 1 310 MPa
for aerospace applications.
W.nr: 1.4542.
ASD-STAN: FE-PM3801.

Luft- und Raumfahrt - Stahl X5CrNiCu17-4 (1.4542) - Lufterschmolzen - Lösungsgeglüht und ausgehärtet - Stangen - a oder D ≤ 200 mm - Rm ≥ 1 310 MPa

Dieses Dokument legt die Anforderungen an:
Stahl X5CrNiCu17 4 (1.4542)
Lufterschmolzen
Lösungsgeglüht und ausscheidungsgehärtet
Stangen
a oder D ≤ 200 mm
Rm ≥ 1 310 MPa
für Anwendungen in der Luft- und Raumfahrt fest.
Werkstoffnummer: 1.4542.
ASD-STAN-Bezeichnung: FE-PM3801.

Série aérospatiale - Acier X5CrNiCu17-4 (1.4542) - Élaboré à l'air - Mis en solution et précipité - Barres - a ou D ≤ 200 mm - Rm ≥ 1 310 MPa

Le présent document spécifie les exigences relatives à :
Acier X5CrNiCu17-4 (1.4542)
Élaboré à l'air
Mis en solution et précipité
Barres
a ou D ≤ 200 mm
Rm ≥ 1 310 MPa
pour les applications aérospatiales.
W.nr : 1.4542.
ASD-STAN : FE-PM3801.

Letalska serija - Jeklo X5CrNiCu17-4 (1.4542) - Taljeno na zraku - Raztopinsko in precipitacijsko obdelano - Palice - a ali D ≤ 200 mm - Rm ≥ 1 310 MPa

Ta dokument določa zahteve za:
Jeklo X5CrNiCu17-4 (1.4542)
Taljeno na zraku
Raztopinsko kaljeno in starano
Palice
a ali D ≤ 200 mm
Rm ≥ 1 310 MPa
za letalske aplikacije.
W.nr: 1.4542.
ASD-STAN: FE-PM3801.

General Information

• Status: Published
• Public Enquiry End Date: 04-Sep-2024
• Publication Date: 15-Jun-2026
• ICS: 49.025.10 - Steels
• ICS: 77.140.60 - Steel bars and rods
• Technical Committee: I13 - Imaginarni 13
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 09-Jun-2026
• Due Date: 14-Aug-2026
• Completion Date: 16-Jun-2026
• Ref Project: EN 3160:2026 - Aerospace series - Steel X5CrNiCu17-4 (1.4542) - Air melted - Solution treated and precipitation treated - Bars - a or D ≤ 200 mm - Rm ≥ 1 310 MPa

Relations

• Referred By: SIST EN 4632-004:2014 - Aerospace series - Weldability and brazeability of materials in aerospace constructions - Part 004: Welding and brazing of homogeneous assemblies of high alloyed steels
• Effective Date: 27-May-2026
• Revised: SIST EN 3160:2007 - Aerospace series - Steel FE-PM3801 (X5CrNiCu17-4) - Air melted, solution treated and precipitation treated, bar a or D <= 200 mm, Rm >= 1 310 MPa
• Effective Date: 19-Jan-2023

Overview

SIST EN 3160:2026 defines the requirements for aerospace bars manufactured from steel X5CrNiCu17-4 (1.4542). This standard specifies bars that are air melted, solution treated, and precipitation treated, with maximum dimensions (a or D) of up to 200 mm and minimum tensile strength (Rm) of 1,310 MPa. Developed by the Slovenski inštitut za standardizacijo (SIST) in line with ASD-STAN and CEN procedures, this standard ensures product uniformity, quality, and compatibility for demanding aerospace applications where strength and reliability are critical.

Key Topics

• Steel Type: X5CrNiCu17-4 (1.4542), also known as 17-4 PH, recognized for its excellent mechanical properties and corrosion resistance.
• Form: Bars with diameter or side (a or D) up to 200 mm.
• Manufacturing Process:
  • Air melted for material consistency.
  • Solution treated and precipitation hardened to optimize strength and microstructure.
• Mechanical Properties:
  • Minimum tensile strength (Rm) of 1,310 MPa.
  • Requirements for elongation, hardness, reduction of area, and additional quality checks.
• Testing and Quality Control:
  • Includes specific methods for verifying mechanical performance, microstructure, and internal/external defects.
  • References standardized inspection such as visual testing (VT) and ultrasonic testing (UT).

Applications

Aerospace Engineering:
Bars covered by SIST EN 3160:2026 are primarily intended for structural and mechanical components within aerospace systems. Their high strength, controlled mechanical properties, and corrosion resistance make them well suited for:

• Aircraft structural frames and fasteners
• Engine mount components
• Fittings and support brackets
• Landing gear parts
• Other critical parts where high mechanical performance and dimensional reliability are mandatory

Benefits for Industry:

• Ensures consistent quality and traceability in aerospace supply chains.
• Facilitates compliance with international aerospace material requirements.
• Supports product qualification and certification processes.

Related Standards

For comprehensive compliance and further technical details, SIST EN 3160:2026 refers to and aligns with several related standards, including:

• EN 2043: General requirements for qualification of metallic materials in aerospace applications.
• EN 4436: Steel testing methods for determining δ-ferrite content.
• EN 4700-002: Technical specifications for wrought steels and heat-resisting alloys in bar and section form.
• EN 4258: Aerospace metallic materials - Standardization organization and links between different types of standards.
• EN 4500-005: Guidelines for drafting and presenting material standards for steels in the aerospace sector.

Practical Value

By applying the requirements of SIST EN 3160:2026, manufacturers, procurement specialists, and engineers in the aerospace sector can:

• Guarantee that steel bars deliver the necessary performance for safety-critical parts.
• Maintain compliance with European and international aerospace standards.
• Achieve interoperability across suppliers and countries within the aerospace industry.
• Ensure that documentation, inspection, and acceptance criteria for aerospace bars are uniform and transparent.

Adoption of SIST EN 3160:2026 is crucial for advancing quality, safety, and innovation in the manufacturing of aircraft components using X5CrNiCu17-4 (1.4542) steel bars.

Standards Content (Sample)

SLOVENSKI STANDARD
01-julij-2026
Aeronavtika - Jeklo X5CrNiCu17-4 (1.4542) - Taljeno - Topilno žarjeno in
izločevalno utrjeno - Palice - a ali D ≤ 200 mm - Rm ≥ 1310 MPa
Aerospace series - Steel X5CrNiCu17-4 (1.4542) - Air melted - Solution treated and
precipitation treated - Bars - a or D ≤ 200 mm - Rm ≥ 1 310 MPa
Luft- und Raumfahrt - Stahl X5CrNiCu17-4 (1.4542) - Lufterschmolzen - Lösungsgeglüht
und ausgehärtet - Stangen - a oder D ≤ 200 mm - Rm ≥ 1 310 MPa
Série aérospatiale - Acier X5CrNiCu17-4 (1.4542) - Élaboré à l'air - Mis en solution et
précipité - Barres - a ou D ≤ 200 mm - Rm ≥ 1 310 MPa
Ta slovenski standard je istoveten z: EN 3160:2026
ICS:
49.025.10 Jekla Steels
77.140.60 Jeklene palice in drogovi Steel bars and rods
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 3160
EUROPEAN STANDARD
NORME EUROPÉENNE
May 2026
EUROPÄISCHE NORM
ICS 49.025.10 Supersedes EN 3160:2007
English Version
Aerospace series - Steel X5CrNiCu17-4 (1.4542) - Air
melted - Solution treated and precipitation treated - Bars -
a or D  200 mm - Rm  1 310 MPa
Série aérospatiale - Acier X5CrNiCu17-4 (1.4542) - Luft- und Raumfahrt - Stahl X5CrNiCu17 4 (1.4542) -
Élaboré à l'air - Mis en solution et précipité - Barres - a Lufterschmolzen - Lösungsgeglüht und
ou D  200 mm - Rm  1 310 MPa ausscheidungsgehärtet - Stangen - a oder D  200 mm -
Rm  1 310 MPa
This European Standard was approved by CEN on 13 April 2026.

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
© 2026 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 3160:2026 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 3160:2026) 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 November 2026, and conflicting national standards shall be
withdrawn at the latest by November 2026.
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 3160:2007.
— update of the material designation;
— correction of the format of Table 1 to comply with the requirements of the EN 4500 series;
— update of Clause 2;
— addition of a bibliography;
— modification of Table 1, line 9, “a or D ≤ 150” with “a or D ≤ 200”.
According to the CEN-CENELEC Internal Regulations, the national st
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