7075 is an aluminum alloy with zinc as one of its elements. It has good fatigue intensity and good processability but cannot be welded. Compared with other alloys, its ability to resist corrosion is also weak. Common models are: 7075-0, 7075-T6, 7075-T651.

7075 T6 T62 T7351 aluminum alloy sheet plate is currently the most widely used 7 * * * in aviation industry.

The main heat treatment conditions are O, T6, T73, T76.


The static strength of T6 is the highest, the ductility is the lowest and the fatigue is the worst.

It is sensitive to stress corrosion cracking, and toughness decreases with the decrease of temperature.

The T6 state is not applied to cryogenic working parts.


T73 has the lowest state strength but has high fracture toughness and excellent resistance to stress corrosion cracking and denudation.

The performance of T76 is between T6 and T73. Compared with T6 state, it has low strength but good resistance to stress corrosion.

Compared with T73 state, its strength is high, but its stress corrosion resistance is poor.

Aviation fixed devices, trucks, tower buildings, ships, pipelines and other areas of building applications that need strength,

weldability and corrosion resistance. Such as: aircraft parts, gears and shafts, fuse parts, instrument shafts and gears, and missile parts jump into valve parts, turbine, keys, aircraft, aviation and national defense applications or internal part of paintball gun related products.