SIST EN 2470:2019

Overview

SIST EN 2470:2019 is a European standard developed by CEN specifying the requirements for Steel FE-PA11 wires used in aerospace applications. These wires are softened and cold drawn, designed specifically for riveting purposes with diameters ranging from 1 mm to 10 mm. This standard ensures that manufacturers and users across the aerospace industry have a common reference for quality, material composition, and mechanical properties to guarantee performance and safety.

The document addresses key aspects such as chemical composition, production methods, heat treatments, and dimensional tolerances aligned with aerospace quality demands. It supports consistent manufacturing and inspection processes, critical for reliability in aerospace manufacturing and assembly.

Key Topics

• Material Specification: Defines Steel FE-PA11 as the material, with precise chemical composition limits ensuring high strength, corrosion resistance, and durability.

• Dimensions and Form: Covers wires intended for rivets with diameters between 1 mm and 10 mm, ensuring dimensional uniformity critical for assembly precision.

• Production Process: Details softened and cold drawn wire manufacturing methods to achieve required mechanical properties and surface quality.

• Heat Treatment: Specifies softened heat treatment at approximately 1040 °C ± 95°C to ensure optimal ductility and tension characteristics.

• Mechanical Properties: Establishes minimum requirements for proof stress (Rp0.2), tensile strength (Rm), elongation (A%), and hardness (HB) to ensure performance under operational stresses.

• Test and Inspection: Includes guidance for dimensional and marking inspections; qualification of products requires agreement between manufacturer and purchaser, promoting collaborative quality assurance.

• Standards Integration: Complements EN 4700-004 for technical specifications of wrought steel products used in aerospace, and EN 4258 outlining general standardization organization.

Applications

SIST EN 2470:2019 applies primarily in aerospace manufacturing sectors where rivets are used to join structural components. Typical applications include:

• Assembly of aircraft fuselage and wing structures.
• Components requiring high-strength, dimensionally precise riveted joints.
• Aerospace parts exposed to demanding environmental conditions that require corrosion resistance and mechanical durability.

This standard is essential for suppliers and manufacturers ensuring rivet wires meet the stringent safety, quality, and reliability criteria set by aerospace industries.

Related Standards

• EN 4700-004: Aerospace series covering technical specifications for wrought steel and heat-resisting alloy products, forming the basis for detailed mechanical and chemical requirements.

• EN 4258: Provides the general framework for aerospace metallic material standards, facilitating consistency and traceability across series.

• EN 4500-005: Details rules for drafting and presenting aerospace material standards, ensuring clarity and uniformity.

• International Terminology Databases:

  • IEC Electropedia: For standard terms in electrotechnology related to manufacturing.
  • ISO Online Browsing Platform: Provides standardized terminology useful in material specification.

Practical Benefits

Adhering to SIST EN 2470:2019 ensures:

• Uniform quality and traceability of steel wires for aerospace rivets.
• Compatibility and interchangeability of rivet wires across manufacturers and aerospace users.
• Enhanced safety and performance reliability in critical aerospace applications.
• Alignment with national and European regulations enabling market access and compliance.

By following SIST EN 2470:2019, aerospace manufacturers and suppliers can deliver rivet wires that meet rigorous standards, supporting the safety and integrity of aircraft structures worldwide.