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.Alcan 162 is an aluminum permanent mold casting alloy having low coefficient of thermal expansion, good wearing characteristics and retention of strength at elevated temperatures. It is age hardenable.