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.Tri-Steel is a high strength low-alloy steel which is resistant to shock, atmospheric corrosion, abrasion, and fatigue and has good workability and welding properties. It is intended for applications requiring high strength for which a carbon steel is not adequate.