7A04 t6 aluminum alloy bar

7A04 T6 aluminum alloy bar belongs to Al Zn mg Cu ultra-high strength aluminum alloy, also known as superhard aluminum. It is a mature and widely used alloy in superhard aluminum. High strength, good heat treatment strengthening effect, medium plasticity in annealing and new quenching state; Different from duralumin, the corrosion resistance of artificial aging state is better than that of natural aging state, and the natural aging process is slow. It takes 3 months to reach the peak value of aging hardening. Therefore, 7A04 T6 aluminum alloy bar is used in the quenching artificial aging state. Its disadvantages are low stability of structure, low fatigue strength at low frequency and stress corrosion cracking tendency. The alloy has good weldability in spot welding, bad gas welding, good machinability after heat treatment, but poor machinability after annealing.
7A04 T6 aluminum alloy bar is mainly used for manufacturing aircraft structures and other high stress structural parts requiring high strength and corrosion resistance, such as upper and lower wing panels, stringers, etc, It is also widely used in mold processing, mechanical equipment, fixtures, aerospace industry, blow molding (bottle) mold, ultrasonic plastic welding mold, golf head, shoe mold, paper plastic mold, foam molding mold, dewaxing mold, mechanical equipment, for the production of high-end aluminum alloy bicycle frame. In 2014, it will be used as the body material of oppo N3 for the first time.



Density: 2.90g/cm ³。
Shear strength: alloy (bare) and aluminum clad alloy, O state: 152mpa (22ksi); Alloy (bare) T6, t651 state: 331mpa (48ksi); Aluminum clad alloy T6, t651 state: 317mpa (46ksi)
Hardness: O state: 60hb; T6, t651 status: 150HB; The data were obtained from the test results of a ball with a diameter of 10 mm and a load of 500 kg for 30 s.
Poisson's ratio: 0.33.
Modulus of elasticity: tensile: 71.0gpa (10.3gpa) × 106psi), shear: 26.9gpa (3.9gpa) × 106psi), compression 72.4gpa (10.5gpa) × 106psi）
Fatigue strength: T6, t651, T73 state: smooth notchless specimen in R · R · Moore type test cycle 5 × 108 times, 159 MPa (23 Ksi).

Author: Frank

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