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 4561 is a very-low-carbon, stabilized with titanium, version of the molybdenum-containing corrosion-resistant austenitic stainless steels. The alloy resists exhaust gases and is used in flues.