Premium Ceramic Bobbin Electric Heater for Furnace - Leader Brand, China Origin

The heating core of the electric heating radiant tube is ingeniously constructed with U-shaped axially aligned end-welded resistance wires, supported by robust ceramic frames, ensuring exceptional heat dissipation due to the lack of shielding between the core and its protective sleeve. Rated for a working temperature of 1000°C, it features resistance wires made from Cr20Ni80 or 0Cr21AI6Nb, with a surface temperature potential of 1200°C. Crafted for durability, the radiant tube can withstand temperatures up to 1000°C utilizing high alumina ceramic supports. Its outer protection, a seamless, cold-drawn, thin-walled steel pipe composed of 1Cr25Ni20Si2 or 1Cr25Ni35Si2, offers remarkable resistance to oxidation, high-temperature creep, and carburization. Designed with a high safety margin, the tube handles a rated temperature of 1200°C with resistance wires of 0Cr27AI7Mo2, capable of reaching 1400°C at the surface. For short durations, this advanced electric radiation tube attains temperatures up to 1250°C, supported by steel jade porcelain frames. Its Fe Ni CrAI Re alloy outer sleeve exhibits superb oxidation resistance, operating continuously at 1300°C in oxidizing conditions, and enduring short-term oxidation up to 1360°C, ideal for high-temperature, low oxygen, and SC-rich environments.