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. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on high temperature performance and corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: Ta-5. Producer or source: Fansteel Metallurgical Corporation.