SIST EN 4287:2026

Overview

SIST EN 4287:2026 is the European standard specifying the requirements for Aluminium alloy AL-P7010 forging stock used in aerospace applications. Developed by CEN and approved in November 2025, this standard supersedes EN 4287:2005 and provides updated specifications that ensure high performance and reliability of aluminium forging materials within the aerospace industry. The standard outlines chemical composition, mechanical properties, and production processes essential for manufacturers and suppliers involved in aerospace-grade aluminium alloy forging.

This regulatory document supports high-quality manufacturing practices, promoting safety, consistency, and compatibility across aerospace components made from AL-P7010 aluminium alloy.

Key Topics

• Material Designation: Aluminium alloy AL-P7010
• Scope: Forging stock intended specifically for aerospace applications
• Chemical Composition: Defines precise element limits, including silicon, iron, copper, manganese, magnesium, chromium, nickel, zinc, zirconium, titanium, and other trace elements.
• Form and Dimensions: Specifies acceptable forms such as ingots, billets, rods, bars, sections, and plates with defined maximum dimensions.
• Production Methods: Includes casting, extrusion, and hot rolling for creating forging stock.
• Heat Treatment: Delivers temperature and time conditions for T74 temper to ensure optimal mechanical performance.
• Mechanical Properties:
  • Proof stress (Rp0,2) ≥ 435 MPa
  • Tensile strength (Rm) ≥ 495 MPa
  • Elongation ≥ 9%
• Testing and Inspection:
  • Visual and dimensional inspections per EN 4400-6
  • Sample and tests reference EN 4400-6 for technical specifications
• Qualification: Product qualification process coordinated between manufacturer and purchaser ensuring compliance with aerospace standards.

Applications

The AL-P7010 alloy forging stock compliant with SIST EN 4287:2026 is designed for critical aerospace components requiring superior strength, durability, and resistance characteristics. Typical uses include:

• Aircraft structural parts manufactured through forging processes
• Aerospace hardware and fittings demanding high-performance aluminium alloys
• Components subject to aggressive mechanical and environmental stress conditions
• Replacement or new aerospace designs requiring standardized aluminium raw materials to ensure interchangeability and safety

By adhering to SIST EN 4287:2026, aerospace manufacturers achieve consistent material quality that meets rigorous industry requirements, improving overall aircraft safety, efficiency, and longevity.

Related Standards

SIST EN 4287:2026 is part of the broader aerospace metallic materials standardization framework and references several key documents:

• EN 4400-6: Aerospace series – Aluminium and aluminium-magnesium alloys – Technical specification for aluminium alloy forging stock used in EN 4287.
• EN 4258: General organization of standardization in aerospace metallic materials, providing the framework for documents like EN 4287.
• EN 4500-002: Rules for drafting and presentation of aluminium, aluminium alloys, and magnesium alloys standards in the aerospace sector.

These related standards ensure cohesive and harmonized practices in aerospace material specification, procurement, and quality assurance.

Keywords: SIST EN 4287:2026, Aluminium alloy AL-P7010, aerospace forging stock, aluminium forging standard, aerospace aluminium alloy, AL-P7010 chemical composition, aerospace material requirements, EN 4400-6, aerospace aluminum standards, aerospace component materials