Udimet B is a series of four 18%-nickel steels of ultra high strength and good toughness at room and at elevated temperatures. They are easily fabricated and weldable, and are recommended for the aircraft and missile industries for high temperature components. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, machining, joining, and surface treatment. Filing Code: SA-146. Producer or source: Special Metals.