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.ATMODIE is a high-carbon, high-chromium, air-hardening tool steel. It has a unique combination of hardness, toughness and non-deforming qualities. Its hardenability is high enough to develop full hardness through large sections; this makes it outstanding as the heavy-duty die and cold-forming tool steel, excellent for blanking heavy sheet and plate. ATMODIE is particularly useful for long-run tools and dies requiring close dimensional accuracy in hardening.