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. C33500 is a brass containing 0.5% lead. It is used where moderate cold working and/or some machining is required. It possesses fair capacity for welding. It is used in a wide variety of hardware items.