ALUMINUM 363 alloy is an aluminum-silicon-copper-zinc casting alloy having good tensile ductility in the as-cast condition. It responds to a solution and age-hardening treatment. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as casting, heat treating, machining, and joining. Filing Code: Al-105. Producer or source: Various aluminum companies.