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.LEADED NICKEL BRONZE 65-20 is a cast copper-nickel zinc-tin alloy to which lead has been added to improve machinability. It is sometimes known as DAIRY BRONZE and has many marine, industrial and ornamental uses.