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.RA 321 is a titanium-stabilized austenitic stainless steel commonly used for service in the 540 to 870 deg C (1000 to 1600 deg F) temperature range.