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 7M is a low carbon, 7% chromium alloy steel possessing high temperature properties and high resistance to attack by hot petroleum products. It is suggested as a substitute for the 5% chromium type steels for those applications in which a greater resistance is required to corrosion by hot petroleum products and when a greater load-carrying ability is desired.