The main alloying elements of 7A09 aluminum plate are zinc, magnesium and copper, which belong to super hard aluminum.
1. The 7A09 aluminum plate has good plasticity after solution treatment, and the heat treatment strengthening effect is particularly good. It has high strength below 150°C and has particularly good low temperature strength;
2. In annealed and just quenched conditions, the stress corrosion performance is better than 7a04 aluminum plate;
Structural parts such as aircraft siding, front beam, joints, pillars and landing gear, etc.