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7075 seamless aluminum tube pipe is al - zn - mg - copper system strengthening heat treatment deformation of high strength aluminum alloy, is the elder statesman in superhard aluminium, but also is not big, because there are bigger strength performance, all its processing semi-finished products are available, and used in the manufacture of all kinds of structures, especially aviation spacecraft structure, is the high strength 7075 seamless aluminum tube pipe widely used today, big to the C919 aircraft before the machine's height girder, passenger observation window frame forgings, the fuselage coin bending and long twist beam girder, keel beam web plate, floor, after the fuselage length in forgings, cargo door frame girder, passenger observation window frame, the nose before pressure casing flange head, cabin door frame and so on;As small as a cell phone case.It has a variety of heat treatment states: T6, T73, T76, T77.T6 state materials have high mechanical strength properties of zui, but low fracture toughness, which is sensitive to stress corrosion, and because its toughness decreases with the decrease of temperature, T6 state materials are not suitable for manufacturing low-temperature structural parts and workpieces.T73 material has low strength zui, but has relatively high fracture toughness, good stress cracking resistance and peeling corrosion resistance.The strength of T76 material is higher than that of T73 material, and the resistance to stress corrosion cracking is higher than that of T6 material.The static strength of  7075 seamless aluminum tube pipe




 is higher than that of 2024 and 2124, and its fatigue performance is comparable.The O state and W state materials have good molding properties at room temperature.