NIKROTHAL ALLOYS 40, 60, 70, and 80 are members of the Nikrothal family, which represent one of two main types of electric-resistance alloys. Nickel-chromium (80Ni-20Cr, for example), developed around the turn of the century, was used as heating-element material in industrial furnaces and electric household appliances. Nikrothal alloys offer advantages in heating-element applications requiring very good mechanical properties in the hot state. This datasheet provides information on composition, physical properties, and tensile properties as well as creep. It also includes information on corrosion resistance. Filing Code: Ni-529. Producer or source: Kanthal Corporation.