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. C85400 is a copper-zinc-lead-tin alloy for casting. It is a free-machining alloy characterized by its good machining and polishing characteristics, its pleasing yellow color, and its relatively low cost. It is an alloy with low-to-moderate strength and it is used in a number of light-duty applications such as andirons, furniture hardware, valves and ship trimmings.