At the heart of our premium electric heating radiant tube is a meticulously engineered heating core. This core integrates U-shaped, axially arranged end-welded resistance wires supported by robust ceramic frames. Ingeniously designed without an inner core shield, it ensures unparalleled heat dissipation. With a rated working temperature soaring to 1000 degrees Celsius, the resistance wires are crafted from high-grade Cr20Ni80 or 0Cr21AI6Nb materials, reaching surface temperatures of 1200 degrees Celsius. This engineering marvel capitalizes on a high alumina ceramic support frame, while the outer protective sleeve is a marvel in itself, comprising a cold-drawn seamless, thin-walled heat-resistant steel pipe of 1Cr25Ni20Si2 or 1Cr25Ni35Si2. These materials bestow the tube with exceptional high-temperature oxidation resistance, remarkable creep strength, and resistance to carburizing in challenging environments. Optimized for safety, the radiant tube is rated to operate at 1200 degrees Celsius, utilizing resistance wires of 0Cr27AI7Mo2, with a surface temperature capacity of 1400 degrees Celsius. For short-term operations, it withstands up to 1250 degrees Celsius, utilizing a support frame of steel jade porcelain. Its outer sleeve, made from Fe Ni CrAI Re alloy, is a testament to high oxidation resistance, enduring long-term use at 1300 degrees Celsius or short bursts at 1360 degrees Celsius in oxidative atmospheres. Perfectly suited for high-temperature, low-oxygen, and SC environments.
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