5A05 aluminum plate is an Al Mg series aluminum alloy with strength equivalent to 5A03, and cannot be strengthened by heat treatment; The plasticity is high in the annealed state, and medium in the semi cold work hardening state; The welding performance of 5A05 aluminum plate using hydrogen atom welding, spot welding, gas welding, and argon arc welding is still good; High corrosion resistance, poor machinability in the annealed state, good machinability in semi cold work hardening, and anodizing treatment is required when manufacturing rivets.