Performance: corrosion resistance, light weight.
Characteristic: It is a kind of high strength hard aluminium, which can be strengthened by heat treatment. It has moderate plasticity in annealing, hardening and hot state, good spot welding performance, and tends to form intergranular cracks in gas welding and argon arc welding. After quenching and cold work hardening, the cutting performance of aluminium tube is good, but it is not good in annealing state. The corrosion resistance is not high. Anodic oxidation treatment and painting method or aluminium coating on the surface are often used to improve the corrosion resistance. It can also be used as die material.