7150 aluminum alloy has good corrosion resistance and alloy strength. It is widely used in the aerospace field of plates, profiles, castings, etc., for the production of high-strength structural parts of aircraft, such as aircraft wing outer wing beams, main landing gear beams, and front Undercarriage action cylinder, vertical tail joint, rocket nozzle structure. The heat-treated 7150 aircraft grade aluminum plate has good performance in terms of strength, spalling corrosion resistance and stress corrosion cracking resistance, fracture toughness, and fatigue strength.
The upper wing upper wall panel of the domestic ARJ21 aircraft is made of 7150 T7751 aircraft grade aluminum plate. At the same time, the 7150 aluminum alloy is also used to make the fuselage frame, bulkhead, wing ribs and wing beams.
The domestic C919 also uses a large number of fourth-generation aluminum alloys in the selection of materials, such as 7050 T7452, 7150 T775511 and so on. The 7150 aluminum alloy is also used in other domestic aircraft, such as the Xinzhou 60 regional passenger aircraft, the Yun-20 heavy military transport aircraft, the large amphibious aircraft AG6000, and various fighter aircraft and other military aircraft.
