What is aluminum square tube and its features

- 2021-09-07-

Aluminum square tube is an Al Mg Si alloy with medium strength, good plasticity and excellent corrosion resistance.
In particular, it has no tendency of stress corrosion cracking. It has excellent weldability, corrosion resistance and cold workability. It is a promising alloy with a wide range of applications. It can be anodized and colored, or painted with enamel, which is suitable for building decoration materials. It contains a small amount of Cu, so its strength is higher than that of 6063, but its quenching sensitivity is also higher than that of 6063. Air quenching cannot be realized after extrusion. It needs to be re solution treated and quenched aging to obtain higher strength.