Nickel 230 is designed for use in active cathodes. The closely controlled composition of this material makes it useful for certain special electron-tube applications. Nickel 230 is essentially free from titanium. 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: Ni-256. Producer or source: Huntington Alloys Inc..