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.BUNTING Alloy 72 is a cast bushing and bearing bronze with excellent load capacity and anti-friction qualities. It is used in a wide variety of industrial and automotive equipment.