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

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: 23-Sep-2018
• ICS: 49.025.10 - Steels
• Technical Committee: I13 - Imaginarni 13
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 07-Sep-2018
• Due Date: 12-Nov-2018
• Completion Date: 24-Sep-2018
• Ref Project: 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

Overview

SIST EN 2475:2018 is a European standard developed by the Aerospace and Defence Industries Association of Europe (ASD-STAN) and ratified by CEN, specifying stringent requirements for steel grade 30CrNiMo8 (1.6580) tailored for aerospace applications. This standard focuses on air melted, hardened, and tempered steel bars intended primarily for machining purposes, with diameter sizes up to 100 mm and tensile strength ranging between 1100 MPa and 1300 MPa. The specification ensures consistent quality, mechanical properties, and dimensional precision critical for aerospace components requiring high strength and reliability.

Key Topics

• Material Specification: Steel 30CrNiMo8 (1.6580) with carefully controlled chemical composition including carbon, silicon, manganese, chromium, molybdenum, and nickel for superior mechanical performance.
• Manufacturing Process: Air melting method to enhance material purity and reduce inclusions, followed by hardened and tempered heat treatment to achieve target mechanical properties.
• Dimensional Scope: Bars for machining with an external diameter (De) not exceeding 100 mm.
• Mechanical Properties: Tensile strength (Rm) strictly controlled between 1100 MPa and 1300 MPa to meet aerospace structural integrity demands.
• Quality Requirements: Includes detailed provisions for cleanliness, internal and external defect control, ultrasonic inspection per EN 4050-1, dimensional inspection, and marking compliance.
• Testing Protocols: Specified test specimens and methods according to EN 4700-002 and product qualification aligned with EN 2043 for ensuring material consistency and reliability.
• Heat Treatment Codes: Conditions are defined for softened and hardened & tempered delivery states to fit various application needs.

Applications

SIST EN 2475:2018 steel bars are specifically designed for critical aerospace industry applications where high strength-to-weight ratio, fatigue resistance, and machinability are essential. Typical uses include:

• Structural components in aircraft and aerospace vehicles
• Precision machined parts requiring high tensile strength and toughness
• Aerospace fasteners, shafts, gears, and high-load connectors
• Elements in aerospace propulsion and landing gear systems

The standardized properties ensure that manufacturers and engineers can rely on uniform performance under typical aerospace operational stresses and environmental conditions.

Related Standards

SIST EN 2475:2018 is part of a broader aerospace series of metallic material standards, which includes:

• EN 2043 – General requirements for semi-finished product qualification (excluding forgings and castings) ensuring consistent material certification processes.
• EN 4050-1 – Ultrasonic inspection methods for bars, plates, and forgings to guarantee defect-free materials.
• EN 4258 – General framework and organization of aerospace metallic material standardization promoting interoperability of standards.
• EN 4500-005 – Rules for drafting and presenting material standards, ensuring uniformity in documentation and technical specifications.
• EN 4700-002 – Technical specifications for steel bars and sections focusing on product characteristics and testing protocols.

These interconnected standards collectively provide a rigorous approach to quality assurance, material testing, and uniform application within the aerospace supply chain.

---

Keywords: SIST EN 2475:2018, aerospace steel, 30CrNiMo8, air melted steel, hardened and tempered bars, machining steel bars, tensile strength 1100 to 1300 MPa, aerospace material standards, CEN aerospace steel, steel bar specifications, aerospace manufacturing materials.

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
t r s z ICS
v {ä r t wä s r English Version
Hardened and tempered æ Bar for machining æ De ≤
s r r mm æ
s
s r r MPa ≤ Rm ≤
s
u r r MPa Élaboré à l 5air æ Durci par trempe et revenu æ Barre pour usinage æ De ≤
s r r mm æ
s
s r r MPa ≤ Rm ≤
s
u r r MPa Lufterschmolzen æ Gehärtet und angelassen æ Stangen zur spanenden Bearbeitung æ De ≤
s r r mm æ
s
s r r MPa ≤ Rm ≤
s
u r r MPa This European Standard was approved by CEN on
t y May
t r s zä
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:
Rue de la Science 23,
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
...