TOPHET-30 is a 70 Ni-30 Cr heat resistant alloy having high specific resistance, high elevated temperature strength and good oxidation resistance to 2300 F. It is recommended for heating elements. This datasheet provides information on composition, physical properties, elasticity, and tensile properties. It also includes information on high temperature performance as well as joining. Filing Code: Ni-135. Producer or source: Wilbur B. Driver Company.