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.NIROSTA 4318 is an austenitic stainless steel with good formability and with high mechanical properties due to the addition of nitrogen. The lower carbon content improves corrosion resistance when considering intergranular corrosion.