The core of our advanced electric heating radiant tube boasts an innovative design featuring U-shaped axially arranged end-welded resistance wires, anchored by rugged ceramic support frames. This precise engineering allows for outstanding heat dissipation, with the inner core seamlessly interacting with the outer protective sleeve. Crafted to operate at a rated temperature of 1000 degrees, the resistance wire material options—Cr20Ni80 or 0Cr21AI6Nb—afford a remarkable surface working temperature of up to 1200 degrees. Further showcasing its superior capabilities, the high alumina ceramic parts of the support frame and the cold drawn seamless thin-walled heat-resistant steel pipe made from 1Cr25Ni20Si2 or 1Cr25Ni35Si2 add to its robustness. These materials are selected for their exceptional high-temperature oxidation resistance, high creep strength, and resistance to carburizing, ensuring a high safety factor in design. For enhanced performance, the advanced composition of 0Cr27AI7Mo2 resistance wire enables a surface temperature reaching 1400 degrees, with short-term exposure potential up to 1250 degrees. The outer protective sleeve, composed of Fe Ni CrAI Re alloy, is engineered for long-term operation in oxidizing environments, enduring prolonged exposure at 1300 degrees Celsius and offering short-term resilience up to 1360 degrees Celsius. This makes it an ideal solution for high-temperature, low oxygen partial pressure, and SC environments.
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