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.AK Steel 2205 duplex stainless steel combines the exceptional corrosion performance of a high chromium ferritic alloy to resist SCC with the enhanced corrosion resistance of austenitic stainless steels.