7A09 aluminum tube belongs to the Al-Zn-Mg-Cu series of super-hard aluminum. This alloy is an ultra-deformed aluminum alloy that has been used in the aircraft industry in the late 1940s and is still widely used in industry. It is characterized by good plasticity after solution treatment, particularly good heat treatment strengthening effect, high strength below 150℃, and particularly good low temperature strength; poor performance; stress corrosion cracking tendency; need to be protected by aluminum or other protection Handle use. Two-stage aging can improve the alloy's ability to resist stress corrosion cracking. The plasticity in the annealed and just quenched state is slightly lower than that of 2A12 aluminum in the same state, and slightly better than that of 7A04 aluminum, and the static fatigue and stress corrosion properties of the plate are better than that of 7A04 aluminum.
7A09 Aluminum tube
Time: 2021-10-18
Next:No More