7050 7075
Features: Mainly zinc, but sometimes magnesium and copper are added in small amounts. Among them, superhard aluminum alloy is an alloy containing zinc, lead, magnesium and copper that is close to the hardness of steel.
The extrusion speed is slower than that of 6 series alloys and the welding performance is good.
7005 and 7075 are the highest grades in the 7 series and can be strengthened by heat treatment.
Scope of application: aviation (load-bearing components of aircraft, landing gear), rockets, propellers, and aviation spacecraft.