Birmal P.83 is an aluminum-copper-silicon die casting alloy, having excellent castability and improved machinability. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and shear strength as well as fatigue. It also includes information on high temperature performance and corrosion resistance as well as casting, heat treating, and machining. Filing Code: Al-98. Producer or source: Birmingham Aluminum Castings Company Ltd.