2A12Aluminum plate is a high-strength hard aluminum that can be heat-treated for strengthening. It has moderate plasticity in the annealed, quenched, and hot states, good spot-welding properties, and a tendency to form intergranular cracks during gas welding and TIG welding.;Alloys retain good machinability after quenching and cold working hardening, but exhibit poor machinability when in the annealed state.

Chemical Composition

Magnesium Mg:1.2~1.8

Zinc Zn:≤0.30

Manganese Mn:0.30~0.9

Titanium Ti :≤0.15

Nickel Ni:≤0.10

Iron Fe: 0.000~ 0.500

Iron+NickelFe+Ni: 0.000~ 0.50