The innovative heating core of our electric radiant tube is expertly crafted with U-shaped, axially arranged, end-welded resistance wires, complemented by robust ceramic support frames. Experience unrivaled heat dissipation, thanks to the unshielded interface between the core and the outer protective sleeve. Engineered to thrive under high temperatures, the electric radiation tube confidently operates at a rated working temperature of 1000 degrees Celsius. The resistance wires, made of high-grade Cr20Ni80 or 0Cr21AI6Nb, enable a surface working temperature of up to 1200 degrees Celsius. Designed for ultimate endurance, these tubes can achieve maximum working temperatures of 1000 degrees when composed of premium high alumina ceramic components. The outer sleeve, crafted from cold-drawn, seamless thin-walled heat-resistant steel pipes like 1Cr25Ni20Si2 or 1Cr25Ni35Si2, ensures superior high-temperature oxidation resistance, creep strength, and carburization resistance. With an exceptional safety factor in design and material choice, these radiant tubes can reach a working temperature of 1200 degrees, with resistance wires of 0Cr27AI7Mo2 allowing surface temperatures up to 1400 degrees. Engineered for robustness, these tubes withstand short-term temperatures of 1250 degrees, supported by steel jade porcelain frameworks. For long-term resilience, our Fe Ni CrAI Re alloy outer sleeves promise high oxidation resistance, maintaining functionality at 1300 degrees Celsius in oxidizing atmospheres, while enduring short-term conditions at 1360 degrees. Perfect for high-temperature, low oxygen, and SC-rich environments.