SIST EN 2070-4:2001

Overview

SIST EN 2070-4:2001 is a European standard developed by CEN that specifies the technical requirements for aluminium and aluminium alloy wrought products, specifically focusing on tubes used in aerospace structural applications. This standard applies to tubes manufactured through extrusion or a combination of extrusion and drawing processes. It is an essential document for manufacturers, designers, and engineers involved in aerospace structure production that require high-quality aluminium alloy tubes.

This standard must be used in conjunction with EN 2070-1, which covers general technical specifications for aluminium and aluminium alloy wrought products, ensuring comprehensive guidance for quality and performance.

Key Topics

• Material Specifications: Defines the types of aluminium and aluminium alloys applicable for aerospace structural tubes, focusing on strength, durability, and corrosion resistance.
• Manufacturing Processes: Covers tubes obtained by extrusion or extrusion followed by drawing, specifying processes that guarantee the mechanical and dimensional properties essential for aerospace structures.
• Dimensional Tolerances: Establishes strict tolerances for tube dimensions such as diameter, wall thickness, and length, ensuring compatibility with aerospace assembly requirements.
• Quality and Testing: Details inspection criteria, mechanical testing, and metallurgical analysis methods that tubes must undergo to comply with aerospace safety and reliability standards.
• Documentation Requirements: Specifies the necessary documentation including certifications, test reports, and traceability, which support compliance verification in aerospace manufacturing chains.

Applications

SIST EN 2070-4:2001 tubes are primarily intended for use in aerospace structural assemblies, where high performance and reliability of aluminium components are critical. Typical applications include:

• Airframe structural tubing
• Aerospace support structures
• Aerospace hydraulic and pneumatic systems requiring lightweight and strong tubes
• Components in aircraft manufacturing requiring aluminium alloy tubes with precise mechanical properties

Its adoption ensures suppliers and manufacturers meet industry-wide expectations for aluminium tube performance, promoting safety and efficiency in aerospace construction.

Related Standards

• EN 2070-1: General technical specifications for aluminium and aluminium alloy wrought products, to be used alongside part 4 for comprehensive guidance.
• Other aerospace material standards concerning aluminium products and alloys, which provide complementary requirements for different product forms and applications.
• Industry standards related to extrusion and drawing processes of aluminium alloys, supporting quality control in manufacturing.

By adhering to the SIST EN 2070-4:2001 standard, aerospace professionals can ensure the supply of aluminium alloy tubes that meet stringent technical specifications, enabling the fabrication of reliable and efficient aircraft structures.