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.Duplex stainless steels are designed to be economical and reliable for material applications in the production of oil and gas to resist the environments there of carbon dioxide, hydrogen sulfide and chlorides. This family of alloys is also resistant to chloride-ion stress-corrosion cracking.