EN 2475:2018

Aerospace series - Steel 30CrNiMo8 (1.6580) - Air melted - Hardened and tempered - Bar for machining - De ≤ 100 mm - 1 100 MPa ≤ Rm ≤ 1 300 MPa

This document specifies the requirements relating to:
Steel 30CrNiMo8 (1.6580)
Air melted
Hardened and tempered
Bar for machining
De ≤ 100 mm
1 100 MPa ≤ Rm ≤ 1 300 MPa
for aerospace applications.

Luft- und Raumfahrt - Stahl 30CrNiMo8 (1.6580) - Lufterschmolzen - Gehärtet und angelassen - Stangen zur spanenden Bearbeitung - De ≤ 100 mm - 1 100 MPa ≤ Rm ≤ 1 300 MPa

Diese Europäische Norm legt die Anforderungen an
Stahl 30CrNiMo8 (1.6580)
Lufterschmolzen
Gehärtet und angelassen
Stangen zur spanenden Bearbeitung
De ≤ 100 mm
1 100 MPa ≤ Rm ≤ 1 300 MPa
für Anwendungen in der Luft  und Raumfahrt fest.

Série aérospatiale - Acier 30CrNiMo8 (1.6580) - Élaboré à l’air - Durci par trempe et revenu - Barre pour usinage - De ≤ 100 mm - 1 100 MPa ≤ Rm ≤ 1 300 MPa

Aeronavtika - Jeklo 30CrNiMo8 (1.6580) - Taljeno na zraku - Utrjeno in mehko žarjeno - Palice za obdelavo - De ≤ 100 mm - 1100 MPa ≤ Rm ≤ 1300 MPa

Ta dokument določa zahteve, ki se nanašajo na:
Jeklo 30CrNiMo8 (1.6580)
Taljeno na zraku
Utrjeno in mehko žarjeno
Palice za obdelavo
De ≤ 100 mm
1100 MPa ≤ Rm ≤ 1300 MPa
za uporabo v aeronavtiki.

General Information

• Status: Published
• Publication Date: 28-Aug-2018
• Withdrawal Date: 27-Feb-2019
• ICS: 49.025.10 - Steels
• Technical Committee: ASD-STAN - Aerospace
• Drafting Committee: ASD-STAN/D 4/S 3 - Steels & Heat Resisting Alloys
• Current Stage: 9093 - Decision to confirm - Review Enquiry
• Start Date: 21-Jan-2024
• Completion Date: 11-Feb-2026
• Ref Project: SIST EN 2475:2018 - Aerospace series - Steel 30CrNiMo8 (1.6580) - Air melted - Hardened and tempered - Bar for machining - De ≤ 100 mm - 1 100 MPa ≤ Rm ≤ 1 300 MPa

Relations

• Refers: EN 4500-005:2024 - Aerospace series - Metallic materials - Rules for drafting and presentation of material standards - Part 005: Specific rules for steels
• Effective Date: 28-Jan-2026
• Refers: EN 4050-1:2012 - Aerospace series - Test method for metallic materials - Ultrasonic inspection of bars, plates, forging stock and forgings - Part 1: General requirements
• Effective Date: 28-Jan-2026
• Refers: EN 2043:2013 - Aerospace series - Metallic materials - General requirements for semi-finished product qualification (excluding forgings and castings)
• Effective Date: 28-Jan-2026
• Refers: EN 4258:2024 - Aerospace series - Metallic materials - General organization of standardization - Link between types of European Standards and their use
• Effective Date: 28-Jan-2026
• Refers: EN 4700-002:2025 - Aerospace series - Steel and heat-resisting alloys for wrought products - Technical specification - Part 002: Bars and sections
• Effective Date: 28-Jan-2026
• Referred By: EN 7010:2020 - Aerospace series - Configuration - Definition and designation for product standards for externally threaded fasteners
• Effective Date: 28-Jan-2026

Overview

EN 2475:2018 is a European standard developed by CEN for the aerospace series, specifying requirements for steel 30CrNiMo8 (1.6580) in the form of air melted, hardened, and tempered bars intended for machining with a maximum diameter (De) of 100 mm and tensile strength (Rm) between 1,100 MPa and 1,300 MPa. This standard is essential for ensuring the quality, consistency, and mechanical performance of steel bars used in demanding aerospace applications across Europe.

The standard supports manufacturers, suppliers, and quality managers by outlining uniform criteria for:

• Material designation
• Chemical composition and melting methods
• Mechanical properties (hardness, tensile strength)
• Delivery and testing conditions
• Methods for inspection and qualification

Key Topics

EN 2475:2018 addresses several critical areas relevant to the aerospace materials sector:

• Material Specification: Focuses on steel 30CrNiMo8 (1.6580), a commonly used alloy in aerospace due to its balance of strength and toughness.
• Manufacturing Process: Restricts the process to air melted production for high purity and quality.
• Heat Treatment: Bars must be supplied in a hardened and tempered state, ready for subsequent machining and application in aerospace components.
• Dimensional Limits: Applies specifically to bars with a diameter (De) less than or equal to 100 mm, targeting the most commonly used sizes in aircraft manufacturing.
• Mechanical Properties: Specifies a required tensile strength range (1,100 MPa ≤ Rm ≤ 1,300 MPa) to ensure the material meets structural and safety needs.
• Testing & Inspection: Includes references to other aerospace material standards for inspection methods (such as ultrasonic testing), mechanical testing, and acceptance criteria – ensuring bars are free from defects.

Applications

EN 2475:2018 is highly relevant for organizations involved in the aerospace industry supply chain, such as:

• Aircraft manufacturers: For sourcing reliable steel bars for critical components like landing gear, fasteners, and structural assemblies.
• Aerospace parts suppliers: To ensure consistent product quality that meets strict performance requirements for airworthiness.
• Engineering and quality assurance teams: For setting procurement specifications, controlling material quality, and verifying compliance with aerospace standards.
• Material testing laboratories: To perform evaluations and certification of 30CrNiMo8 bars according to the standard’s mechanical and metallurgical requirements.

Utilizing EN 2475:2018 helps reduce risk in aerospace manufacturing by guaranteeing material traceability, repeatable mechanical properties, and compatibility with European aerospace regulations.

Related Standards

EN 2475:2018 is part of a comprehensive set of standards for aerospace metallic materials. Key related standards include:

• EN 2043: General requirements for qualification of semi-finished products (excluding forgings and castings).
• EN 4050-1: Test methods for ultrasonic inspection of bars, plates, forging stock, and forgings.
• EN 4258: Organizes and links the various EN metallic material standards for aerospace use.
• EN 4500-005: Rules for drafting and presentation of aerospace material standards, with specific guidance on steels.
• EN 4700-002: Technical specification for wrought steel and heat resisting alloy bars and sections.

Adhering to EN 2475:2018 and its related standards can streamline certification, ensure interoperability in the aerospace industry, and optimize material selection and processing for performance-critical applications.

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.49.025.10JeklaSteelsICS:Ta slovenski standard je istoveten z:EN 2475:2018SIST EN 2475:2018en,fr,de01-november-2018SIST EN 2475:2018SLOVENSKI
STANDARD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 2475
August
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Hardened and tempered æ Bar for machining æ De ≤
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u r r MPa Élaboré à l 5air æ Durci par trempe et revenu æ Barre pour usinage æ De ≤
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egulations which stipulate the conditions for giving this European Standard the status of a national standard without any alterationä Upætoædate lists and bibliographical references concerning such national standards may be obtained on application to the CENæCENELEC Management Centre or to any CEN memberä
translation under the responsibility of a CEN member into its own language and notified to the CENæCENELEC Management Centre has the same status as the official versionsä
CEN members are the national standards bodies of Austriaá Belgiumá Bulgariaá Croatiaá Cyprusá Czech Republicá Denmarká Estoniaá Finlandá Former Yugoslav Republic of Macedoniaá Franceá Germanyá Greeceá Hungaryá Icelandá Irelandá Italyá Latviaá Lithuaniaá Luxembourgá Maltaá Netherlandsá Norwayá Polandá Portugalá Romaniaá Serbiaá Slovakiaá Sloveniaá Spainá Swedená Switzerlandá Turkey and United Kingdomä
EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre:
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B-1040 Brussels
t r s z CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membersä Refä Noä EN
t v y wã t r s z ESIST EN 2475:2018
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