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.Toolox is a family of modern quenched and tempered prehardened tool and machine steel, delivered with guaranteed properties. Toolox 44 has a hardness if HRC 45 and is ideal for nitriding.