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.15-15LC MODIFIED STAINLESS is an austenitic alloy with high manganese and nitrogen, with low permeability, and good corrosion resistance. The alloy should be considered in down-hole applications such as drill collars.