The vital heating core of our electric heating radiant tube is ingeniously engineered with U-shaped end welded resistance wires and sturdy ceramic support frames, ensuring optimal heat dissipation with no internal shielding. This advanced design allows our electric radiation tube to operate safely at a rated working temperature of 1000 degrees. Crafted from premium Cr20Ni80 or 0Cr21AI6Nb resistance wire, the surface working temperature achieves an impressive 1200 degrees. For superior thermal performance, the outer protective sleeve is constructed from cold drawn seamless thin-walled heat-resistant steel pipe made of either 1Cr25Ni20Si2 or 1Cr25Ni35Si2, renowned for its remarkable high-temperature oxidation resistance, robust high-temperature creep strength, and resistance to carburizing. The meticulous design and material selection of this radiation tube offer a substantial safety factor. Featuring resistance wire made of 0Cr27AI7Mo2, the tube's rated working temperature escalates to 1200 degrees, with surface temperatures soaring to 1400 degrees. The maximum short-term functional temperature reaches an astonishing 1250 degrees, supported by steel jade porcelain frames. Moreover, the outer protective sleeve, forged from Fe Ni CrAI Re alloy, exhibits outstanding oxidation resistance, performing reliably at 1300 degrees Celsius in an oxidizing environment and withstanding short-term exposures up to 1360 degrees Celsius. This product is ideal for high-temperature, low-oxygen partial pressure, and sulfur-containing atmospheres.
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