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.This 21 Cr-9Ni-N austenitic stainless steel develops substantially higher tensile strengths than the familiar austenitic stainless alloys. The alloy has good corrosion resistance and good weldability. It is commonly listed as grade XM-11.