The heating core of our electric heating radiant tube is ingeniously crafted from U-shaped, axially aligned, end-welded resistance wires, supported by robust ceramic frames. With no shielding between the core and its outer protective sleeve, it promises unparalleled heat dissipation. Operating at a rated temperature of 1000 degrees, the resistance wire is composed of top-grade Cr20Ni80 or 0Cr21AI6Nb, boasting a surface temperature capability of up to 1200 degrees. This radiant tube, crafted with high alumina ceramic support frames, securely reaches a maximum working temperature of 1000 degrees. The outer protective sleeve, engineered from cold-drawn seamless thin-walled heat-resistant steel pipe such as 1Cr25Ni20Si2 or 1Cr25Ni35Si2, offers excellent high-temperature oxidation resistance, impressive creep strength, and carburizing resistance. Our meticulously selected design presents a high safety factor with a rated working temperature of 1200 degrees, utilizing 0Cr27AI7Mo2 resistance wire to achieve surface temperatures of 1400 degrees. The maximum short-term capability is 1250 degrees, supported by steel jade porcelain. Its Fe Ni CrAI Re alloy sleeve withstands prolonged exposure to 1300 degrees in oxidizing atmospheres, offering short-term resilience at 1360 degrees. Ideal for high-temperature, low-oxygen, and SC-laden environments.
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