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 A320 is an aluminum casting alloy suitable for architectural, ornamental and marine uses. It has good finishing characteristics and excellent corrosion resistance.