7075 aluminum plate is a cold-treated forging alloy with high strength and hardness, far better than mild steel. 7075 aluminum plate is one of the most powerful commercial alloys, with ordinary corrosion resistance, good mechanical properties and anode reaction.
3A21 aluminum plate is an Al-Mn series alloy. 3A21 aluminum plate is the most widely used anti-rust aluminum. Its strength is not high (only slightly higher than industrial pure aluminum) and cannot be strengthened by heat treatment, so cold working methods are often used to improve its mechanical properties.
6A02 aluminum plate is widely used forged aluminum, medium strength (lower than other forged aluminum), plasticity and poor machinability in annealed state, good plasticity and machinability after quenching and natural aging, corrosion resistance is as good as 2A21, 2A02 , After artificial aging, there is a tendency of intergranular corrosion.