Aerospace series - Steel X5CrNoMoCuNb14-5 (1.4594) - 930 MPa ≤ Rm ≤ 1 080 MPa - Bars

This document specifies the requirements relating to:
Steel X5CrNoMoCuNb14-5 (1.4594)
930 MPa ≤ Rm ≤ 1 080 MPa
Bars
De ≤ 150 mm
for aerospace applications.
ASD-STAN designation: FE-PM66.

Luft- und Raumfahrt - Stahl Acier X5CrNoMoCuNb14-5 (1.4594) - 930 MPa ≤ Rm ≤ 1 080 MPa - Stangen - De ≤ 150 mm

Dieses Dokument legt die Anforderungen an:
Stahl X5CrNoMoCuNb14-5 (1.4594)
930 MPa ≤ Rm ≤ 1 080 MPa
Stangen
De ≤ 150 mm
für Anwendungen in der Luft- und Raumfahrt fest.
ASD-STAN-Bezeichnung: FE-PM66.

Série aérospatiale - Acier X5CrNoMoCuNb14-5 (1.4594) - 930 MPa ≤ Rm ≤ 1 080 MPa - Barres

Le présent document spécifie les exigences relatives à :
Acier X5CrNoMoCuNb14-5 (1.4594)
930 MPa ≤ Rm ≤ 1 080 MPa
Barres
De ≤ 150 mm
pour applications aérospatiales.
Désignation ASD-STAN : FE-PM66.

Aeronavtika - Jeklo X5CrNoMoCuNb14-5 (1.4594) - 930 MPa ≤ Rm ≤ 1080 MPa - Palice

Ta dokument določa zahteve, ki se navezujejo na: jeklo X5CrNoMoCuNb14-5 (1.4594), 930 MPa ≤ Rm ≤ 1080 MPa, palice, De ≤ 150 mm.

General Information

Status
Published
Publication Date
16-Dec-2019
Technical Committee
I13 - Imaginarni 13
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
12-Dec-2019
Due Date
16-Feb-2020
Completion Date
17-Dec-2019

Relations

Effective Date
28-Jan-2026
Effective Date
28-Jan-2026
Effective Date
28-Jan-2026
Effective Date
28-Jan-2026
Effective Date
28-Jan-2026

Overview

SIST EN 2502:2020 is a European standard developed by the Comité Européen de Normalisation (CEN) as part of the aerospace series. It specifies the requirements for steel alloy X5CrNoMoCuNb14-5 (1.4594) with specified tensile strength (930 MPa ≤ Rm ≤ 1 080 MPa) in bar form with diameters up to and including 150 mm. This standard is specifically intended for critical aerospace applications where high strength and corrosion resistance are required. The ASD-STAN designation for this material is FE-PM66.

SIST EN 2502:2020 ensures unified expectations for material quality and mechanical properties across manufacturers and users throughout the European aerospace sector.

Key Topics

  • Material scope: Steel X5CrNoMoCuNb14-5 (1.4594), a precipitation hardening stainless steel renowned for its balance of strength and corrosion resistance.
  • Mechanical properties: Covers minimum and maximum tensile strength (930–1 080 MPa), proof stress, elongation, and hardness values to ensure suitability for aerospace applications.
  • Bar dimensions: Specifies requirements for bars with diameters up to 150 mm (De ≤ 150 mm), supporting a wide range of aerospace components.
  • Heat treatment: Defines standardized heat treatment regimes (solution annealing, primary hardening, and precipitation hardening) to achieve prescribed mechanical properties.
  • Dimensional tolerances: References applicable EN standards (EN 2034–EN 2042) for dimensional accuracy and form (round, hexagonal, square, and rectangular bars).
  • Product qualification: Outlines that final qualification programs must be agreed upon between manufacturer and purchaser, emphasizing traceability and inspection.

Applications

SIST EN 2502:2020 is widely used within aerospace manufacturing and maintenance for components requiring superior mechanical strength and durability in demanding environments. Typical applications include:

  • Aircraft structural elements: Used in highly loaded airframe parts, landing gear components, and engine attachments.
  • Fasteners and fittings: Ideal for producing bolts, nuts, and other connecting elements exposed to high operational loads and corrosive conditions.
  • Landing gears and actuators: Selected for hydraulic actuators, landing gear rods, and similar parts where performance and reliability are critical.
  • Spacecraft and defense equipment: Suitable for specialized parts in space and defense industries requiring stringent material and performance specifications.

In addition to aerospace, the standard’s rigorous material and testing requirements may be referenced by industries such as defense, high-performance automotive, and energy sectors for critical stainless steel components.

Related Standards

The requirements of SIST EN 2502:2020 are closely tied to several foundational and related standards, including:

  • EN 4700-002: Technical specification for steel and heat-resisting alloy wrought products in aerospace applications.
  • EN 4258: Organization of standardization for metallic materials in the aerospace series.
  • EN 2034 – EN 2042: Series of standards specifying dimensions and tolerances for aerospace steel bars (round, hexagonal, rectangular, and square).
  • EN 4500-005: Rules for drafting and presentation of material standards, with specific guidelines for steel.

Practical Value

Adopting SIST EN 2502:2020 ensures:

  • Consistent high-quality materials for aerospace supply chains
  • Regulatory compliance across Europe for critical safety components
  • Streamlined procurement and quality assurance with harmonized technical requirements
  • Simplification of inspection and certification processes between manufacturers and aerospace OEMs

By referencing SIST EN 2502:2020, organizations can demonstrate adherence to recognized best practices for material selection and performance in aerospace engineering and all high-reliability sectors.

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Frequently Asked Questions

SIST EN 2502:2020 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Aerospace series - Steel X5CrNoMoCuNb14-5 (1.4594) - 930 MPa ≤ Rm ≤ 1 080 MPa - Bars". This standard covers: This document specifies the requirements relating to: Steel X5CrNoMoCuNb14-5 (1.4594) 930 MPa ≤ Rm ≤ 1 080 MPa Bars De ≤ 150 mm for aerospace applications. ASD-STAN designation: FE-PM66.

This document specifies the requirements relating to: Steel X5CrNoMoCuNb14-5 (1.4594) 930 MPa ≤ Rm ≤ 1 080 MPa Bars De ≤ 150 mm for aerospace applications. ASD-STAN designation: FE-PM66.

SIST EN 2502:2020 is classified under the following ICS (International Classification for Standards) categories: 49.025.10 - Steels; 77.140.60 - Steel bars and rods. The ICS classification helps identify the subject area and facilitates finding related standards.

SIST EN 2502:2020 has the following relationships with other standards: It is inter standard links to SIST EN 4700-002:2026, SIST EN 2040:2017, SIST EN 2034:2017, SIST EN 2037:2018, SIST EN 2036:2017. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.

SIST EN 2502:2020 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.

Standards Content (Sample)


SLOVENSKI STANDARD
01-februar-2020
Aeronavtika - Jeklo X5CrNoMoCuNb14-5 (1.4594) - 930 MPa ≤ Rm ≤ 1080 MPa -
Palice
Aerospace series - Steel X5CrNoMoCuNb14-5 (1.4594) - 930 MPa ≤ Rm ≤ 1 080 MPa -
Bars
Luft- und Raumfahrt - Stahl Acier X5CrNoMoCuNb14-5 (1.4594) - 930 MPa ≤ Rm ≤ 1
080 MPa - Stangen - De ≤ 150 mm
Série aérospatiale - Acier X5CrNoMoCuNb14-5 (1.4594) - 930 MPa ≤ Rm ≤ 1 080 MPa -
Barres
Ta slovenski standard je istoveten z: EN 2502:2019
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 2502
EUROPEAN STANDARD
NORME EUROPÉENNE
December 2019
EUROPÄISCHE NORM
ICS 49.025.10
English Version
Aerospace series - Steel X5CrNoMoCuNb14-5 (1.4594) -
930 MPa ≤ Rm ≤ 1 080 MPa - Bars
Série aérospatiale - Acier X5CrNoMoCuNb14-5 Luft- und Raumfahrt - Stahl Acier X5CrNoMoCuNb14-5
(1.4594) - 930 MPa ≤ Rm ≤ 1 080 MPa - Barres (1.4594) - 930 MPa ≤ Rm ≤ 1 080 MPa - Stangen - De ≤
150 mm
This European Standard was approved by CEN on 4 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 2502:2019 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 2502:2019) 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 document shall be given the status of a national standard, either by publication of an identical text or by
endorsement, at the latest by June 2020, and conflicting national standards shall be withdrawn at the latest by
June 2020.
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.
According to the CEN-CENELEC Internal Regulations, the national standards organisations of the following
countries are bound to implement this European Standard: 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, Slovak
...

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