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.J & L TYPE 304-N is a nitrogen-bearing, high strength stainless steel which is stronger than Type 304 but retains the other characteristics of the latter. It has many applications in the aerospace, industrial, and instrument fields.