Nickel-Copper-Columbium Steel is used in the hot-rolled and aged condition and develops yield strengths in the range 75,000 to 100,000 psi, depending on alloy content and section thickness. This datasheet provides information on composition, physical properties, elasticity, and tensile properties as well as fracture toughness. It also includes information on low temperature performance and corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: SA-263. Producer or source: International Nickel Company Inc..