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.TANTALOY 63 Metal is a tantalum-base alloy containing typically 2.5% tungsten and 0.15% columbium. It is melted in an electron-beam furance. Its strength is considerably greater than that of unalloyed tantalum. For a wide range of chemicals at elevated temperatures, its corrosion resistance is comparable to or better than that of pure tantalum. Typical appalications are heaters, condensers and multi-tube heat exchangers.