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and machinability.COPPER ALLOY No. 754, formerly called Nickel Silver 65-15, is a brass in which part of the zinc has been replaced by nickel. It is one of the few copper alloys that have a white color.