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.Special Genco is a hardenable 12% chromium stainless steel developed for applications requiring superior strength to Type 403 stainless steel at elevated temperatures. This grade retains high strength and exhibits excellent ductility over the temperature range from room temperature to 1200 F. Special Genco provides excellent resistance to corrosion and oxidation within this temperature range.