ALLCAST 60 is a fine-grained aluminum alloy, responding to an age-hardening treatment for high tensile and fatigue strengths. This datasheet provides information on composition, physical properties, hardness, elasticity, and compressive strength as well as fatigue. It also includes information on heat treating, machining, and joining. Filing Code: Al-8. Producer or source: Apex Smelting Company. Originally published July 1953, revised June 1962.