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.Latrobe GSN is a desegatized, oil or air hardening high-carbon, high-chromium type of die steel developed to withstand the most severe abrasive action. It is a general purpose cold forming tool and die steel.