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 A356 is a sand and permanent mold casting alloy that responds to an age-hardening heat treatment. It is recommended for aircraft and missile components where high strength and corrosion resistance are required.