The heating elements of an electric furnace are crucial components that generate heat through resistive effects. The main types include resistance heating wires (such as nickel-chromium alloys), silicon carbide rods (Sic), molybdenum disilicide rods (Mosi2), and graphite elements. They are tailored for various industrial heat treatment needs, capable of operating stably in high-temperature environments and efficiently converting electrical energy into heat to meet the heating and temperature control requirements of electric furnaces.