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.Armco Type 430 is one of the most widely used of the ¿nonhardenable¿ ferritic stainless steels. It combines good corrosion resistance and heat and oxidation resistance up to 816 C (1500 F) with good mechanical properties.