The core of the Leader Electric Heater's radiant tube is ingeniously designed with U-shaped axially aligned end-welded resistance wires resting on robust ceramic support frames. This innovative design ensures optimal heat dissipation due to the absence of shielding between the inner core and outer protective sleeve. The electric radiation tube boasts a remarkable rated working temperature of 1000 degrees, utilizing resistance wires made from Cr20Ni80 or 0Cr21AI6Nb, with surface temperatures soaring to 1200 degrees. Crafted from high alumina ceramic parts, the support frame exemplifies durability. Complementing this is the outer protective sleeve, a masterpiece of engineering, formed from cold drawn seamless thin-walled heat-resistant steel pipes, specifically 1Cr25Ni20Si2 or 1Cr25Ni35Si2. These materials are renowned for their high-temperature oxidation resistance, superior creep strength, and resilience against carburizing. This meticulously crafted radiation tube is embedded with a high safety factor, boasting a rated working temperature of 1200 degrees using 0Cr27AI7Mo2 resistance wire, and reaching surface temperatures up to 1400 degrees. Its maximum short-term capacity is 1250 degrees, with the support frame fashioned from steel jade porcelain. The protective sleeve, composed of Fe Ni CrAI Re alloy, exhibits exceptional oxidation resistance, functioning effectively at 1300 degrees Celsius in oxidizing atmospheres and offering short-term protection at 1360 degrees Celsius. This versatile tube is ideal for high-temperature, low oxygen, and SC containing environments.
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