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 21-12 is an austenitic chromium-nickel stainless steel which offers an excellent combination of high-temperature strength and corrosion resistance for exhaust valve applications. It is used widely as the head material in two-piece valves for both diesel and gasoline engines.