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.VascoMax T-250 is a new ultra-high-strength steel that delivers the high strength (250,000 psi tensile strength) and toughness of VascoMax 250 (Alloy Digest, SA-142, March 1963). Yet VascoMax T-250 contains no cobalt and less molybdenum (both strategic elements) than the older, standard grade. In addition, the new grade provides higher ductility and toughness. As provided to the customer, it can be hot formed easily, machined and ground by standard methods and welded conventionally. Among many potential uses, VascoMax T-250 is recommended for aerospace structures, pressure vessels, shafting, bolts and fasteners.