The electric heating radiant tube's core is ingeniously crafted from U-shaped axially arranged end welded resistance wires and ceramic support frames, ensuring exceptional heat dissipation without any shielding between the inner core and the outer protective sleeve. Engineered for excellence, the electric radiation tube operates at a rated working temperature of 1000 degrees, constructed with resistance wires made of either Cr20Ni80 or 0Cr21AI6Nb, while the surface working temperature courageously reaches up to 1200 degrees. When crafted from this material, the radiant tube achieves a maximum working temperature of 1000 degrees, supported by high alumina ceramic components. Encased in a cold drawn seamless thin-walled heat-resistant steel pipe of 1Cr25Ni20Si2 or 1Cr25Ni35Si2, this material boasts superior high-temperature oxidation resistance, elevated high-temperature creep strength, and a degree of resistance against carburizing. The design, coupled with meticulous material selection, ensures a high safety factor for this advanced radiation tube. Featuring a rated working temperature of 1200 degrees, and resistance wires composed of 0Cr27AI7Mo2, the surface working temperature impressively reaches 1400 degrees. Capable of short-term operations at a maximum temperature of 1250 degrees, supported by steel jade porcelain frames, it is shielded within a cold drawn seamless thin-walled heat-resistant steel pipe made of Fe Ni CrAI Re alloy. This construction excels with high oxidation resistance, enabling sustained performance at 1300 degrees Celsius in oxidative environments, and withstands short-term exposure at 1360 degrees Celsius, making it ideal for high-temperature, low oxygen partial pressure, and sulfur-containing atmospheres.
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