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.DuraTech 20CV is a versatile tool steel that is highly wear resistant due to a large volume content of hard carbides. It is also corrosion resistant, with a high chromium content.