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.SICROMO-5S is a low-carbon, 5% chromium alloy steel recommended for applications in which a high degree of surface stability under oxidizing conditions is required for temperatures up to 1500 F. It is used in air prehealer tubes, recuperater and superheater tubes.