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.CARPENTER STAINLESS 18-18 PLUS is an 18 chromium-18 manganese austenitic stainless steel which provides twice the yield strength of AISI Type 304 stainless steel and corrosion resistance similar to AISI Type 316 in some media. It has excellent ductility and toughness and good high-temperature strength. Although Carpenter 18-18 Plus contains no nickel, it is nonmagnetic both in the annealed condition and after severe cold forming.