EN 2070-5:1989

Overview

EN 2070-5:1989 is a key standard in the aerospace sector, published by CEN, that defines the specific requirements for round-section tubes made from aluminium and aluminium alloys used under pressure. These tubes are manufactured using extrusion or a combination of extrusion and drawing processes. The standard is crucial for ensuring reliable performance and safety of pressure systems utilizing aluminium and aluminium alloy tubes in demanding aerospace environments. EN 2070-5:1989 must be used alongside EN 2070-1, which covers general technical specifications for such products.

Key Topics

• Material Scope: Specifies requirements for wrought aluminium and aluminium alloy tubes.
• Tube Geometry: Applies exclusively to tubes of round cross-section intended for use under internal pressure.
• Manufacturing Process: Tubes must be produced by extrusion, or extrusion followed by drawing, ensuring material integrity and consistent mechanical properties.
• Pressure Suitability: Details the essential characteristics for tubes to withstand designated pressure conditions in aerospace applications.
• Compliance: Ensures harmonization of material properties, dimensional tolerances, testing criteria, and documentation in the aerospace sector.

Applications

The EN 2070-5:1989 standard is vital across numerous aerospace and high-pressure engineering applications, particularly where aluminium tube reliability is critical:

• Hydraulic and Pneumatic Systems: For aircraft components requiring lightweight yet durable tubing to handle operating pressures in control and actuation systems.
• Fuel and Fluid Transfer: Used in pipelines transporting fuel, hydraulic oils, and other fluids under pressure throughout aerospace equipment.
• Airframe Construction: Facilitates structural integration of pressure-resistant tubes for system routing and support.
• Ground and Test Equipment: Supports the manufacture of aerospace support apparatus where pressurized fluid transfer is required.
• International Trade and Procurement: Provides a consistent benchmark for quality and performance, simplifying sourcing and compliance for manufacturers and suppliers worldwide.

Related Standards

For comprehensive technical coverage and compliance, refer to the following associated and supporting European standards:

• EN 2070-1: Defines general technical specifications for aluminium and aluminium alloy wrought products, serving as the base document for EN 2070-5.
• EN 2070 Series: Includes additional closely related parts that detail requirements for other forms (e.g., sheets, bars) of aluminium and aluminium alloy products in aerospace applications.
• ICS 49.025.20: Catalogue for the classification of aluminium materials in aerospace applications, providing easier reference for standard users.

Practical Value

Adhering to EN 2070-5:1989 ensures uniformity, high safety, and performance standards in the manufacture and application of aluminium pressure tubes for aerospace use. This standard minimizes the risk of system failure, optimizes weight-to-strength ratios, and supports regulatory and procurement needs across international supply chains, making it essential for engineers, manufacturers, and quality assurance professionals in the aerospace industry.