7a04 aluminum alloy is a cold-processed forged alloy with high strength, much better than mild steel. 7a04 is one of the commercially available high-strength alloys. 7a04 aluminum rod has a compact structure and strong corrosion resistance, making it excellent for aviation and marine plates. General corrosion resistance, good mechanical properties and anodic reaction. Fine grains enable better deep drilling performance and enhanced tool wear resistance. 7a04 aluminum rods are mainly used in the aerospace industry, blow molding (bottle) molds, ultrasonic plastic welding molds, golf heads, shoe molds, paper molds, foam molding molds, dewaxing molds, templates, fixtures, mechanical equipment, mold processing , used to make high-end aluminum alloy bicycle frames.
Super hard aluminum alloy, high strength and good wear resistance
7A04 belongs to the Al-Zn-Mg-Cu series super aluminum alloy, also known as super duralumin. It is a very mature, long-used and widely used alloy among super duralumin. High strength, good heat treatment strengthening effect, medium plasticity in annealed and newly quenched states; unlike hard aluminum, the corrosion resistance in artificial aging state is better than that in natural aging state, and the natural aging process is slow and needs to go through 3 It takes several months to reach the age hardening peak, so 7A04 is used in the quenching artificial aging state. Its disadvantages are low structural stability, low low-frequency fatigue strength, and tendency to stress corrosion cracking. The alloy has good spot weldability and good machinability after gas welding heat treatment, but the machinability after annealing is not good.
Main features and application scope of 7A04 aluminum rod:
7A04 aluminum rod belongs to the Al-Zn-Mg-Cu series ultra-high-strength aluminum alloy, also known as superduralumin. It is the most mature, longest-used and most widely used alloy among superduralumins. High strength, good heat treatment strengthening effect, medium plasticity in annealed and newly quenched states; unlike hard aluminum, the corrosion resistance in artificial aging state is better than that in natural aging state, and the natural aging process is slow and needs to go through 3 It takes several months to reach the peak age hardening, so the 7A04 aluminum rod is used in the quenching artificial aging state. Its disadvantages are low structural stability, low low-frequency fatigue strength, and tendency to stress corrosion cracking. The alloy spot welding has good weldability but poor gas welding. The machinability after heat treatment is good, but the machinability after annealing is not good.
