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. C33200 is a free-machining brass containing nominally 1.6% lead. Its machinability rating is 80% of that of Free-Cutting Brass. It has good resistance to corrosion in many environments. Alloy No. C33200 is used widely for general-purpose screw-machine products.