prominent advantages of extruded aluminum tubes in automotive industry application scenarios（一）

1、 Core advantages

Ultimate lightweight

The density of aluminum is only one-third of that of steel (about 2.7g/cm ³), and using extruded aluminum tubes can significantly reduce the weight of structures such as airplanes and rockets.

Weight reduction benefits: For every 1kg weight reduction, the fuel efficiency of the aircraft increases by about 0.1% to 0.2%, and the rocket payload capacity significantly increases.

High strength and high specific strength

Through alloying (such as 7075 and 2024 aluminum alloys) and aging heat treatment, the tensile strength can reach 450-600MPa, and the specific strength (strength/density) far exceeds that of steel.

Typical alloy:

7075-T6 (Al Zn Mg Cu): used for load-bearing structural components, with a tensile strength of up to 570MPa;

2024-T3 (Al Cu Mg): Used for fuselage skin, it combines toughness and fatigue resistance.

Excellent fatigue and corrosion resistance

Aluminum alloy natural oxide film (Al ₂ O3) can resist corrosive environments such as moisture and salt spray, extending its service life.

The extrusion process reduces the number of welds and avoids the welding area becoming a fatigue failure point (such as the welding joints of traditional steel pipes).

Integrated molding of complex cross-sections

The extrusion process can produce aluminum tubes with complex cross-sections such as hollow, multi cavity, and thin-walled, reducing the number of parts and lowering assembly risks.

Case: The aircraft hydraulic pipeline adopts hollow aluminum tubes, integrates cooling channels, and reduces external additional devices.

High and low temperature resistance performance

Aluminum alloy maintains stable performance within the range of -200 ℃ (deep space environment) to 150 ℃ (engine periphery), making it suitable for extreme working conditions of spacecraft.