The core of our electric heating radiant tube is elegantly engineered with U-shaped, axially aligned, end-welded resistance wires alongside ceramic support frames, ensuring optimal heat dissipation without any internal shielding. This sophisticated design allows a rated working temperature of 1000 degrees, using high-quality Cr20Ni80 or 0Cr21AI6Nb resistance wires. Remarkably, the surface temperature can ascend to 1200 degrees. Crafted with high alumina ceramic parts for the support frame, our radiant tube's outer protective sleeve embodies a cold drawn, seamless thin-walled, heat-resistant steel pipe made of 1Cr25Ni20Si2 or 1Cr25Ni35Si2. This advanced material offers stellar high-temperature oxidation resistance, exceptional creep strength, and resilience to carburizing, all contributing to a high safety factor in design and material choice. The electric radiation tube's rated working temperature reaches 1200 degrees with 0Cr27AI7Mo2 resistance wires, and its surface temperature peaks at 1400 degrees. For short-term operations, it withstands up to 1250 degrees, supported by steel jade porcelain. Encased in a resilient cold drawn, seamless thin-walled steel sleeve made of Fe Ni CrAI Re alloy, it exhibits superb oxidation resistance, enduring long-term exposure at 1300 degrees in oxidizing atmospheres and short-term resistance up to 1360 degrees. Perfectly suited for high-temperature environments with low oxygen and SC presence.
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