Our innovative electric heating radiant tube features a meticulously crafted heating core, composed of U-shaped, axially arranged resistance wires seamlessly welded and supported by advanced ceramic frames. With an open design, lacking any shielding between the core and the protective sleeve, this system ensures optimal heat dissipation. The radiant tube operates at a remarkable rated temperature of 1000 degrees, utilizing top-grade resistance wires made from Cr20Ni80 or 0Cr21AI6Nb, achieving a surface temperature up to 1200 degrees. Constructed from high alumina ceramic, the support frame offers superior durability. The outer sleeve, a cold drawn seamless thin-walled heat-resistant steel pipe, crafted from 1Cr25Ni20Si2 or 1Cr25Ni35Si2, boasts excellent high-temperature oxidation resistance and significant creep strength, coupled with resistance to carburizing. Designed with a robust safety factor, the tube's rated working temperature extends to a stunning 1200 degrees with 0Cr27AI7Mo2 resistance wires, allowing surface temperatures to soar to 1400 degrees. For short-term operations, the maximum temperature reaches 1250 degrees, supported by resilient steel jade porcelain. The outer protective sleeve, fashioned from a high-strength Fe Ni CrAI Re alloy, excels in high oxidation resistance, capable of enduring continuous operation at 1300 degrees Celsius in oxidizing atmospheres, and withstands short-term conditions at 1360 degrees Celsius. This technology is ideal for high-temperature, low oxygen, and SC containing environments.
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