7075 aluminum is called ultra-high strength aluminum alloy. The yield strength of the alloy is close to the tensile strength, the yield ratio is high, and the specific strength is also high, but the plasticity and high temperature strength are relatively low, and it should be used at room temperature and below 120 ° C. The used load-bearing structural parts, alloys are easy to process, have good corrosion resistance and high toughness. This alloy is widely used in the aviation and aerospace fields and has become one of the important structural materials in this field.
Physical and Mechanical Properties
Tensile Strength: 524Mpa 0.2%
Yield Strength 455Mpa
Elongation: 11%
Elastic Modulus: E/Gpa: 71.
The 7-series aluminum alloy belongs to the Al-Zn-Mg-Cu series super-hard aluminum. This alloy has been used in the aircraft manufacturing industry in the late 1940s and is still used in many applications in the aviation industry. Ultra-high-strength deformed aluminum alloy. It is characterized by good plasticity after solution treatment, particularly good heat treatment strengthening effect, high strength below 150 ° C, and particularly good low temperature strength; poor welding performance; With aluminum cladding or other surface treatment. Dual-stage aging can improve the alloy's resistance to stress corrosion cracking.
7075 Aluminum Alloy Chemical Composition
Si: 0.40, Fe: 0.50, Cu: 1.2-2.0, Mn: 0.30, Mg: 2.1-2.9, Cr: 0.18-0.28
Zn: 5.1-6.1, Ti: 0.20, Al: balance, others: single: 0.05 total: 0.15
7075 aluminum alloy application
The variety status and variety of 7075 are divided into sheet, medium and heavy plate, bar, shape, row, wire, rolled or cold-worked bar, seamless tube, and cold-worked wire. The states include O state, T6 state, T651 state, T6511 state, T73, T74 state, T7351 state, T7651 state, and T76511 state. 7075 Typical uses in aerospace industry, blow molding (bottle) mold, ultrasonic plastic welding mold, golf ball head, shoe mold, paper mold, foam molding mold, wax release mold, fixture, mechanical equipment, sports equipment, police equipment Wait.