The innovative heating core of our electric radiant heating tube is a masterpiece of design, featuring U-shaped, axially arranged end-welded resistance wires and fortified with robust ceramic support frames. This advanced construction ensures excellent heat dissipation as there is no barrier between the inner core and the protective outer sleeve. Operating at a rated temperature of 1000 degrees Celsius, our radiation tube is crafted with precision using top-tier materials such as Cr20Ni80 or 0Cr21AI6Nb resistance wire. The impressive surface working temperature can reach up to 1200 degrees. This highly durable material supports a maximum working temperature of 1000 degrees, enhanced by high alumina ceramic support frames. Encased in a cold-drawn, seamless, thin-walled, heat-resistant steel pipe made from 1Cr25Ni20Si2 or 1Cr25Ni35Si2, our product showcases remarkable resistance to high-temperature oxidation, creep strength, and carburization. Boasting a superior safety factor in design and material selection, the rated working temperature of this tube can escalate to 1200 degrees, with resistance wire composed of 0Cr27AI7Mo2. This allows the surface temperature to rise to an astounding 1400 degrees. The tube's short-term maximum temperature peaks at 1250 degrees, using a support frame of steel jade porcelain. The outer sleeve features a cold-drawn, seamless, thin-walled heat-resistant steel pipe made from a Fe Ni CrAI Re alloy, demonstrating high oxidation resistance. Capable of enduring long-term performance at 1300 degrees Celsius and short-term oxidation resistance at 1360 degrees Celsius, this product is ideally suited for high-temperature, low-oxygen partial pressure, and sulfur-containing environments.