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.Carpenter Custom Flo 316HQ is modified from the base alloy type 316 stainless steel by the addition of copper and the lowering of carbon content in order to develop an alloy with corrosion resistance and minimum work hardening upon cold work.