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 A201 is the strongest aluminum casting alloy commercially available today. Compared to other aluminum casting alloys, A201 also offers: (1) The highest impact values, (2) The best combination of room and elevated-temperature performance, and (3) The best ballistic properties. Its ballistic properties are comparable to those of the standard wrought aluminum alloys. Among its many application are components for military aircraft and missiles, and impellers for gas turbine engines.