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.CRUCIBLE 403 is a hardenable steel containing 11.50-13.00% chromium. Its composition and mill processing are controlled carefully to produce a product capable of meeting the severe requirements of steam turbine blading and other high-requirement uses. Crucible 403 is magnetic at all times.