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.AA 3105 is a non-heat treatable aluminum alloy with excellent weldability, formability and corrosion resistance. It is used in residential siding and rain carrying goods.