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.UGINA 4567 and 304Cu are the same grades designated differently for the European and North American markets, respectively. Controlled steelmaking results in machining gains, particularly in deep drilling, over UGIMA 4307 (see Alloy Digest SS-722).