The core of our cutting-edge electric heating radiant tube is ingeniously crafted with U-shaped, axially arranged end-welded resistance wires and sophisticated ceramic support frames. By eliminating shielding between the inner core and outer protective sleeve, we ensure superior heat dissipation. Engineered to operate at a remarkable 1000 degrees, the resistance wire is fashioned from either Cr20Ni80 or 0Cr21AI6Nb, while our radiant tube material can achieve surface temperatures up to 1200 degrees. This advanced material supports a maximum operational temperature of 1000 degrees and incorporates high alumina ceramic components for its support frame. The outer protective sleeve is expertly manufactured from cold drawn seamless thin-walled heat-resistant steel, using 1Cr25Ni20Si2 or 1Cr25Ni35Si2, renowned for its excellent high-temperature oxidation resistance, formidable high-temperature creep strength, and notable carburizing resistance. Our meticulous design and material selection are underscored by a high safety factor, with the electric radiation tube boasting a 1200-degree working temperature, featuring 0Cr27AI7Mo2 resistance wire. Capable of reaching surface temperatures of 1400 degrees, the radiant tube can withstand short-term exposure to 1250 degrees and utilizes steel jade porcelain for its support frame. The outer protective sleeve leverages Fe Ni CrAI Re alloy, delivering exceptional oxidation resistance, operational longevity at 1300 degrees in oxidizing atmospheres, and short-term resilience up to 1360 degrees. This tube is ideal for high-temperature environments with low oxygen partial pressure and SC presence.
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