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.Ansonia alloy C67500 and C67600 are manganese bronze and manganese leaded bronze that are high strength; the latter being the machinable equivalent.