TOPHET A is a 80Ni-20Cr alloy recommended for high temperature service. It is recommended for temperatures up to 2100 F. It is also very widely used in chemical applications. 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, and joining. Filing Code: Ni-39. Producer or source: Wilbur B. Driver Company.

TOPHET Alloy A has long been used in resistance heating elements serviceable to 2150 F(1175 C). Resistance to chemical corrosion and to carburizing atmospheres broaden the alloy's range of applications. This Digest supercedes Filing Code Ni-39 of 2/58. This datasheet provides information on composition, physical properties, and tensile properties. It also includes information on corrosion resistance as well as forming, heat treating, machining, and joining. Filing Code: Ni-389. Producer or source: Carpenter Technology Corporation.

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.

Tophet-D is an iron-nickel-chromium alloy recommended for electric furnace heating elements and electrical resistors operating up to 1600 F. This datasheet provides information on composition, physical properties, hardness, and tensile properties. It also includes information on high temperature performance as well as forming, heat treating, and machining. Filing Code: Fe-30. Producer or source: Wilbur B. Driver Company.

TOPHET H is a heating-element alloy specifically designed for use in duct heaters and clothes dryers where hot strength and long life are of most importance. This datasheet provides information on composition, physical properties, elasticity, and tensile properties. It also includes information on high temperature performance and corrosion resistance as well as forming, heat treating, and joining. Filing Code: Ni-162. Producer or source: Wilbur B. Driver Company.

Tophet-C is a nickel-base alloy recommended for electrical appliances and other devices whose operating temperatures do not exceed 1850 F. This datasheet provides information on composition, physical properties, hardness, and tensile properties. It also includes information on corrosion resistance as well as forming and joining. Filing Code: Ni-106. Producer or source: Wilbur B. Driver Company.

TOPHET Alloy C has excellent heat resistance to 1850 F (1010 C) and is highly suited for domestic appliance heating elements. Because of its ability to withstand high overloads it is used in heavy-duty rheostats and controls. This Digest supercedes Filing Code Ni-106 of 10/65. This datasheet provides information on composition, physical properties, and tensile properties. It also includes information on corrosion resistance as well as forming and joining. Filing Code: Ni-390. Producer or source: Carpenter Technology Corporation.