COLUMBIUM D-14 is a readily fabricable, moderate strength columbium base alloy for high temperature service. It is double consumable-electrode vacuum are melted. This datasheet provides information on composition, physical properties, microstructure, elasticity, and tensile properties as well as creep. It also includes information on high temperature performance as well as heat treating, machining, joining, and surface treatment. Filing Code: Cb-2. Producer or source: E. I. Dupont de Nemours & Company Inc..