EN 3161:2007

Aerospace series - Steel FE-PM3801 (X5CrNiCu17-4) - Air melted, solution treated and precipitation treated, bar a or D ≤ 200 mm, Rm ≥ 930 MPa

This standard specifies the requirements relating to:
Steel FE-PM3801 (X5CrNiCu17-4) - Air melted, solution treated and precipitation treated, bar a or D ≤ 200 mm, Rm  ≥ 930 MPa
for aerospace applications.

Luft- und Raumfahrt - Stahl FE-PM3801 (X5CrNiCu17-4) - Lufterschmolzen - lösungsgeglüht und ausgehärtet - Stangen - a oder D ≤ 200 mm - Rm ≥ 930 MPa

Diese Norm legt die Anforderungen an
Stahl FE PM3801 (X5CrNiCu17 4)
Lufterschmolzen
Lösungsgeglüht und ausgehärtet
Stangen
a oder D  200 mm
Rm ≥ 930 MPa
für Anwendungen in der Luft- und Raumfahrt fest.

Série aérospatiale - Acier FE-PM38301 (X5CrNiCu17-4) - Élaboré à l'air, mis en solution et vieilli, barres a ou D ≤ 200 mm, Rm ≥ 930 MPa

Aeronavtika - Jeklo FE-PM3801 (X5CrNiCu17-4) - Palice a ali D <= 200 mm, Rm >= 930 MPa, taljene, žarjene v topilu in utrjene

General Information

• Status: Published
• Publication Date: 21-Aug-2007
• Withdrawal Date: 28-Feb-2008
• 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: 22-Aug-2007
• Completion Date: 22-Aug-2007
• Ref Project: SIST EN 3161:2007 - Aerospace series - Steel FE-PM3801 (X5CrNiCu17-4) - Air melted, solution treated and precipitation treated, bar a or D <= 200 mm, Rm >= 930 MPa

Relations

• Revised: FprEN 3161 - Aerospace series - Steel X5CrNiCu17-4 (1.4542) - Air melted - Solution treated and precipitation treated - Bars - a or D ≤ 200 mm - Rm ≥ 930 MPa
• Effective Date: 18-Jan-2023

Overview

EN 3161:2007 (CEN) specifies requirements for steel FE-PM3801 (X5CrNiCu17-4) intended for aerospace applications. The standard covers air-melted wrought bars (form: bar a or diameter D ≤ 200 mm) supplied in solution treated or solution plus precipitation treated conditions, with a guaranteed tensile strength Rm ≥ 930 MPa. This material standard is part of the EN aerospace metallic materials series and is prepared in accordance with EN 4500-5 and the general organization described in EN 4258.

Key Topics

• Material designation: FE-PM3801 (X5CrNiCu17-4).
• Melting method: Air melted.
• Form and size: Bars (a or D ≤ 200 mm).
• Delivery conditions:
  • Solution treated (code W)
  • Solution treated and precipitation treated (code U)
• Heat treatment (as specified):
  • Solution treatment: 1 025 °C ≤ θ ≤ 1 055 °C, t ≥ 30 min; cooling AC or OQ+ to θ ≤ 30 °C.
  • Precipitation ageing (when applicable): 610 °C ≤ θ ≤ 630 °C, t ≥ 4 h; cooling AC.
• Chemical composition (maximums / nominal where given):
  • C ≤ 0.07 %, Si ≤ 1.00 %, Mn ≤ 1.00 %, P ≤ 0.040 %, S ≤ 0.030 %
  • Cr ≈ 17.5 %, Ni ≤ 5.0 %, Cu ≤ 5.0 %, Nb+Ta ≤ 0.45 %
• Mechanical properties (typical limits by section size):
  • Proof stress Rp0.2 ≥ 725 MPa (depending on section)
  • Tensile strength Rm ≥ 930 MPa
  • Elongation A% and reduction of area Z% meet minimums (A ≥ 10–14 %; Z ≥ 35–50 % depending on size)
  • Hardness targets noted (e.g., 277 ≤ HB ≤ 352 in some conditions)
• Microstructure and quality:
  • δ-ferrite content ≤ 5 %
  • Grain size G ≥ 4
  • Micro-cleanness: Category 2
  • Internal defects: Class 2

Applications

This standard is intended for critical aerospace components where high static strength, controlled heat treatment, and consistent microstructure are required. Typical uses include high-strength structural bars and machined parts in aerospace and defence industry supply chains that require traceable material specification, tight mechanical property control (Rm ≥ 930 MPa) and documented production/qualification programs.

Related Standards

Relevant normative references and linked EN standards within the aerospace series include:

• EN 2043 - General requirements for semi-finished product qualification (aerospace)
• EN 4258 - Organization of aerospace material standardization
• EN 4700-2 - Technical specification for bar and section (aerospace steels)
• EN 4436 - Test methods for δ-ferrite content
• EN 4500-5 - Rules for drafting and presentation of material standards (steels)

For procurement, qualification and product inspection the purchaser and manufacturer should agree a qualification programme consistent with EN 2043 and EN 4700-2. The standard supports selection of high-strength stainless steel bars with defined heat treatments and inspection levels for aerospace supply chains.

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Aerospace series - Steel FE-PM3801 (X5CrNiCu17-4) - Air melted, solution treated and precipitation treated, bar a or D <= 200 mm, Rm >= 930 MPaAeronavtika
- Jeklo FE-PM3801 (X5CrNiCu17-4) - Palice a ali D <= 200 mm, Rm >= 930 MPa, taljene, žarjene v topilu in utrjeneSérie aérospatiale - Acier FE-PM38301 (X5CrNiCu17-4) - Élaboré a l'air, mis en solution et vieilli, barres a ou D <= 200 mm, Rm >= 930 MPaLuft- und Raumfahrt - Stahl FE-PM3801 (X5CrNiCu17-4) - Luftgeschmolzen, lösungsgeglüht und ausgehärtet, Stangen a oder D <= 200 mm, Rm >= 930 MPaTa slovenski standard je istoveten z:EN 3161:2007SIST EN 3161:2007en49.025.10JeklaSteelsICS:SLOVENSKI
STANDARDSIST EN 3161:200701-november-2007

EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 3161
August 2007 ICS 49.025.10 English Version
Aerospace series - Steel FE-PM3801 (X5CrNiCu17-4) - Air melted, solution treated and precipitation treated, bar a or D ≤ 200 mm, Rm ≥ 930 MPa
Série aérospatiale - Acier FE-PM38301 (X5CrNiCu17-4) - Élaboré à l'air, mis en solution et vieilli, barres a ou D ≤200 mm, Rm ≥ 930 MPa
Luft- und Raumfahrt - Stahl FE-PM3801 (X5CrNiCu17-4) - Luftgeschmolzen, lösungsgeglüht und ausgehärtet, Stangen a oder D ≤ 200 mm, Rm ≥ 930 MPa This European Standard was approved by CEN on 24 February 2007.
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 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 Management Centre has the same status as the official versions.
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