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 380.0 is a silicon-copper aluminum die-casting alloy. It has good castability and fairly good machinability; it is the most widely used aluminum die-casting alloy. It has satisfactory strength and ductility.