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.YS-T 50 to YS-T 140 Steels comprise a series of high-strength, cold-rolled steels designed to meet today's performance and weight-saving objectives. They are an extension of Youngstown's series of hot-rolled high-strength steels (See Alloy Digest, SA-261, March 1971). The YS-T 50 to YS-T 140 steels have minimum yield strengths ranging from 50,000 psi to 140,000 psi.