EN 2460:2009

Overview

EN 2460:2009 is a European standard published by CEN that specifies the technical requirements for aerospace-grade steel FE-PM1901 (X12CrNi13). This standard covers bars with diameters up to 70 mm and tensile strength ranging from 600 MPa to 800 MPa. Developed under the Aerospace and Defence Industries Association of Europe (ASD-STAN), EN 2460:2009 ensures the quality and consistency of corrosion-resistant steel materials used in critical aerospace applications.

This standard is part of a broader series of EN metallic material standards dedicated to aerospace components, facilitating harmonized specifications across European supply chains. It addresses chemical composition, mechanical properties, delivery conditions, and relevant testing protocols for steel bars designed for high-performance aerospace environments.

Key Topics

• Material Specification:

  • Steel grade FE-PM1901 (X12CrNi13)
  • Chemical composition limits include carbon (C), silicon (Si), manganese (Mn), phosphorus (P), sulfur (S), chromium (Cr), and nickel (Ni).
  • Air-melted steel following strict aerospace requirements.

• Mechanical Properties:

  • Tensile strength (Rm) between 600 MPa and 800 MPa.
  • Proof stress (Rp0.2) ≥ 420 MPa.
  • Minimum elongation (A) ≥ 16%.
  • Hardness range suitable for structural integrity and corrosion resistance.
  • Impact strength values to ensure toughness under aerospace operational conditions.

• Delivery and Heat Treatment Conditions:

  • Bars delivered in softened or hardened and tempered states.
  • Heat treatment involves temperatures ranging from 980°C to 1,000°C with subsequent tempering above 640°C to optimize strength and ductility.
  • Diameter limitations set to a maximum of 70 mm to meet aerospace dimensional standards.

• Testing and Quality Assurance:

  • Compliance with EN 4700-2 for technical specifications and test procedures.
  • Mandatory marking and dimensional inspection per aerospace quality management systems.
  • Optional testing as per agreements between manufacturer and purchaser.
  • Qualification programs referenced in EN 9133 ensure consistent product performance.

Applications

EN 2460:2009 steel bars are engineered specifically for aerospace uses where reliable mechanical strength and corrosion resistance are paramount. Typical applications include:

• Aircraft structural components requiring high tensile strength and hardness.
• Aerospace fasteners and fittings exposed to demanding mechanical and environmental stress.
• Components in engine and landing gear systems where durability under cyclic loads is critical.
• Use in aerospace manufacturing that demands certified materials compliant with European aerospace industry standards.

The standard’s tight control over chemical and mechanical properties ensures material reliability and safety, integral for aerospace safety requirements.

Related Standards

• EN 4258 - Defines the general organization of aerospace metallic material standardization, providing a framework under which EN 2460 operates.
• EN 4500-5 - Specifies rules for drafting and presenting aerospace steel material standards to maintain uniformity.
• EN 4700-2 - Details technical specifications and testing procedures for bars and sections of aerospace steels, referenced extensively within EN 2460.
• EN 9133 - Relates to quality management system protocols and qualification procedures for aerospace standard parts, supporting EN 2460 compliance.

These associated standards collectively enable manufacturers and purchasers to maintain consistency, traceability, and certification in aerospace steel products.

Keywords: Aerospace steel standard, FE-PM1901 steel, X12CrNi13, tensile strength 600-800 MPa, aerospace steel bars, corrosion-resistant steel, aerospace material standards, EN 2460:2009, aerospace quality management, steel bars for aerospace, aerospace component materials.