HIGH STRENGTH CASTING ALUMINUM ALLOY MATERIAL

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A high strength casting aluminum alloy material comprises (in weight %) Cu 2.0- 6.0%, Mn 0.05-1.0%, Ti 0.01-0.5%, Cr0.01-0.2%, Cd 0.01-0.4%, Zr 0.01-0.25%, B 0.005- 0.04%, rare earth 0.05-0.3%, and balance aluminum and trace impurities. The alloy has reduced cost.