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.USS EX-TEN is a series of low-carbon constructional steels supplied in seven grades to minimum yield points of 42000 psi, 45000 psi, 50000 psi, 55000 psi, 60000 psi, 65000 psi and 70000 psi. It is intended as an economical grade for applications in which greater strength to gain weight reduction is the primary requirement.