The innovative heating core of our electric heating radiant tube is meticulously crafted with U-shaped axially arranged end welded resistance wires, coupled with robust ceramic support frames. This design excels in efficient heat dissipation due to the absence of shielding between the inner core and the outer protective sleeve. The electric radiation tube boasts a rated working temperature of a remarkable 1000 degrees, powered by Cr20Ni80 or 0Cr21AI6Nb resistance wires. Achieving a surface working temperature up to 1200 degrees, our product ensures optimal performance. The high alumina ceramic support frame complements the sturdy cold drawn seamless thin-walled heat-resistant steel pipe, crafted from 1Cr25Ni20Si2 or 1Cr25Ni35Si2, known for its impressive high-temperature oxidation resistance, superior high-temperature creep strength, and carburizing resistance. For added safety, the design and material selection promise a high safety factor, with the tube rated for 1200 degrees, utilizing 0Cr27AI7Mo2 resistance wires reaching a surface temperature of 1400 degrees. Short-term, it withstands up to 1250 degrees with a steel jade porcelain support frame. The outer protective sleeve, a cold drawn seamless thin-walled pipe made of Fe Ni CrAI Re alloy, offers outstanding oxidation resistance, suited for long-term endurance at 1300 degrees Celsius in an oxidizing atmosphere, and short-term resilience up to 1360 degrees Celsius. Ideal for high temperature, low oxygen partial pressure, and sulfur-containing environments, this radiant tube is your go-to solution for demanding applications.