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.UGIMA 4307 (also known as UGIMA 304L) is an austenitic stainless steel produced by special steelmaking techniques that produce a steel with inclusions of malleable oxides, a low melting point, and a controlled composition. The presence of the inclusions lubricates the metal-tool interface during high-speed cutting.