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.LUKENS HARDWARE 400F steel was developed from armor steel production technology to have as low a carbon equivalent as possible, consistent with meeting both surface and through-thickness hardness. Uses include truck body liners, bucket lips and conveyor troughs.