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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.

CARPENTER BARTO is a cold-melt, grain-controlled, electric-furnace chromium-nickel tool steel. It was developed for applications requiring extreme toughness. Barto's extreme toughness is developed at the expense of some wear resistance; however, it will harden to Rockwell C 55/56. Typical applications are clutch parts and expander punches.