View Sample Alloy Digest Data Sheet (PDF)Since 1952, Alloy Digest has been the leading reference for materials property data on metals and alloys used throughout the world. Featuring graphs, charts and tables, these sheets give facts and figures on composition or characterization, physical and mechanical properties, heat treatment, and machinability.ALUMINUM 6061 is a wrought precipitation-hardenable aluminum alloy having excellent resistance to corrosion and good mechanical properties. (This alloy is covered under its old designation, ALUMINUM 61S, in Alloy Digest for November 1952).