The heating core of our advanced electric heating radiant tube is intricately designed with U-shaped, axially aligned end-welded resistance wires supported by durable ceramic frames, ensuring no obstruction between the inner core and the robust outer protective sleeve for optimal heat dissipation. With a rated operational temperature of an impressive 1000 degrees Celsius, the resistance wires are crafted from high-quality Cr20Ni80 or 0Cr21AI6Nb. The tube's surface is engineered to operate at a remarkable 1200 degrees, with a peak performance temperature reaching 1000 degrees. The support frame features high alumina ceramic components for enhanced durability. Encased in a cold-drawn, seamless, thin-walled heat-resistant steel pipe made from 1Cr25Ni20Si2 or 1Cr25Ni35Si2, this material boasts excellent high-temperature oxidation resistance and superior creep strength, coupled with some resistance to carburization. The design and material selection ensure a high safety margin for the user. For an even more robust performance, the advanced resistance wire made of 0Cr27AI7Mo2 allows the rated working temperature to soar to 1200 degrees, and the surface can withstand up to 1400 degrees. Short-term operation reaches as high as 1250 degrees, with a steel jade porcelain support frame. The outer protective sleeve, constructed from Fe Ni CrAI Re alloy, provides outstanding oxidation resistance and can endure long periods at 1300 degrees Celsius in an oxidizing atmosphere, with short-term tolerance up to 1360 degrees Celsius. Ideal for high-temperature applications, low oxygen partial pressure, and SC environments.
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