Alloy 6061 is one of the most widely used alloys in the 6000 Series. This data sheet revision adds standard tempers and many of the Alcoa special tempers, as well as properties for extrusions and shapes. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and shear strength. It also includes information on corrosion resistance as well as forming, machining, joining, and surface treatment. Filing Code: AL-281. Producer or source: Alcoa Engineered Products. Originally published May 1987, revised January 2006.