7018/7020/7075 Aluminum Alloy Forgings for Automotive Automobile Vehicle
The 7018 alloy is a Al-Zn-Mg-Mn based alloy. Its components are 0.35 Si, 0.45 Fe, 0.20 Cu, 0.15~0.50 Mn, 0.7~1.5 Mg, 0.20 Cr, 0.10 Ni, 4.5~5.5 Zn, 0.15, Fe, and other impurities, 0.05 0.05, 0.15, and the rest is a. It is a British alloy, registered in the American Aluminum Association in 1978 and used in the state of T5 or T6, with considerable strength and good weldability. The lowest mechanical properties of Forgings: tensile strength and yield strength of Rm410N/mm - Rp - 360N/mm., elongation of A 10%, Bush HBW. / hardness 115. The automobile industry uses it to forge forgings with both high strength and good weldability.
Specification of aluminum alloy forgings
Alloy: 7018
Available Temper: H112,O,F,T3,T4,T5,T6,T7,T8,T9,T651,T851,T451,T351
Maximum single unit weight: 800kg
Maximum diameter with quenching:2000mm
Maximum diameter without quenching: 2800mm
7020 alloy is a Al-Zn-Mg system alloy, with a small amount of Mn and Cr, which was registered by the European Aeronautics and Space Association in 1972 at the American Aluminum Association. Its chemical composition is 0.35 Si, 0.40 Fe, 0.20 Cu, 0.05~0.50Mn, 1.0~1.4 Mg, 0.10~0.35 Cr, 4.0~5.0 Zn, 0.08~0.20, 4.0~5.0, and other impurities 0.05 0.05, a total of 0.15. In the T5 or T6 state, medium intensity, good solderability, low mechanical properties of Forgings: tensile strength and yield strength of Rm350N/mm - Rp - 280N/mm. It has been used in the automobile industry and the manufacturing of rail vehicles for forging complex shape forgings. 7020, the corrosion resistance of the alloy is medium. The mechanical properties of the welding are almost the same as those of the base material. After welding, it is advisable to do artificial aging treatment. The automotive industry uses this alloy to forge medium load parts and cut and weld.
Specification of 7020 aluminum alloy forgings
Alloy: 7020
Available Temper: H112,O,F,T3,T4,T5,T6,T7,T8,T9,T651,T851,T451,T351
Maximum single unit weight: 800kg
Maximum diameter with quenching:2000mm
Maximum diameter without quenching: 2800mm
The 7075 is a Al-Zn-Mg-Cu alloy, Alcoa Corp R & D, post World War two aircraft have been using this alloy forgings in T6 or T73 state of application, its composition: 0.40 Si, 0.50 Fe, 0.30 Mn, 1.2~2.0 Cu, 2.1~2.9 Mg, 0.18~0.28 Cr, 5.1~6.1 Zn, 0.20 Ti, Cr+Ti maximum in 0.25, each of the 0.05 other impurities, a total of 0.15, the rest is Al. The 7075 alloy is the highest strength in the automotive industry forgings, and its corrosion resistance is better than that of the 2024 alloy in the state of T6 or T73. It is also higher than that of the 2014 alloy, but it is not as good as that of the 6082 alloy. The lowest mechanical properties of the alloy (T5/T73): Rm 530/455 N/mm - tensile strength and yield strength of Rp. 470/385 N/mm - A 8/6, elongation%, the hardness of HBW. Bush / 145/130. The alloy has been widely used in the aviation industry, and the automobile industry uses it to forge die forgings with very high load, but the amount is less.
Specification of 7075 aluminum alloy forgings
Alloy: 7075
Available Temper: H112,O,F,T3,T4,T5,T6,T7,T8,T9,T651,T851,T451,T351
Maximum single unit weight: 800kg
Maximum diameter with quenching:2000mm
Maximum diameter without quenching: 2800mm
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