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.Durehete 950 is a high-strength steel bolting material often used in steam turbine and other power plant applications. It is usually supplied in the heat treated condition.