The heart of the electric heating radiant tube is ingeniously designed with U-shaped end welded resistance wires, seamlessly supported by ceramic frames. This thoughtful design ensures no interference between the core and its protective sleeve, optimizing heat dissipation. The electric radiation tube boasts a remarkable rated working temperature of up to 1000 degrees, with resistance wires crafted from Cr20Ni80 or 0Cr21AI6Nb. The surface temperature can soar to 1200 degrees, while the tube's maximum working potential reaches 1000 degrees. The support frame, made of high alumina ceramic, and the protective sleeve is a marvel of engineering, using a cold-drawn seamless thin-walled heat-resistant steel pipe composed of 1Cr25Ni20Si2 or 1Cr25Ni35Si2, providing excellent high-temperature oxidation resistance and robust creep strength. With materials like 0Cr27AI7Mo2 for resistance wires, this tube's rated temperature stretches to 1200 degrees, and the surface limit reaches an incredible 1400 degrees. It can sustain short-term exposure to 1250 degrees. The support frame of steel jade porcelain and Fe Ni CrAI Re alloy protective sleeve endow it with superior oxidation resistance, capable of enduring long-term operations at 1300 degrees in oxidizing environments and resisting short-term oxidation at 1360 degrees, making it ideal for harsh conditions with high temperatures and low oxygen.
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