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 513.0 is an aluminum-magnesium-zinc permanent-mold casting alloy. It cannot be hardened nor strengthened by any thermal treatment and is characterized by moderate strength and ductility. It is recommended for such applications as chemical-plant equipment, food handling and marine hardware.