ALCAN A143 is a copper-silicon type of aluminum casting alloy having excellent castability and improved machinability. This datasheet provides information on composition, physical properties, hardness, tensile properties, and compressive and shear strength as well as fatigue. It also includes information on high temperature performance and corrosion resistance as well as heat treating, machining, and joining. Filing Code: Al-91. Producer or source: Aluminum Company of Canada Ltd.