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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.

ALLEGHENY METAL 25-20B is an austenitic chromium-nickel stainless steel with the highest oxidation resistance of any of the chromium-nickel steels. It has been developed from AISI 310 by raising the silicon content in order to improve the resistance to oxidation and the resistance to carburization.