The electric heating radiant tube’s core boasts a meticulously engineered design, featuring U-shaped axially aligned end welded resistance wires and robust ceramic support frames. Unencumbered by shielding between its inner core and outer protective sleeve, it ensures optimal heat dissipation. Rated for a working temperature of 1000 degrees Celsius, the resistance wire comprises Cr20Ni80 or 0Cr21AI6Nb, with the surface capable of reaching 1200 degrees. This tube, crafted from these premium materials, withstands up to 1000 degrees, with high alumina ceramic parts reinforcing the support frame. Its outer protective sleeve is a cold drawn seamless thin-walled pipe made from 1Cr25Ni20Si2 or 1Cr25Ni35Si2, known for superior high-temperature resistance, oxidation resilience, and robust carburization resistance. This innovative design and material selection guarantee a high safety factor. With a rated working temperature soaring to 1200 degrees, the advanced resistance wire composed of 0Cr27AI7Mo2 allows surface temperatures to hit 1400 degrees. In extraordinary conditions, it withstands brief temperatures up to 1250 degrees, supported by steel jade porcelain frames. Encased in a cold drawn seamless thin-walled heat-resistant Fe Ni CrAI Re alloy pipe, it excels in oxidation resistance, sustaining functionality up to 1300 degrees in oxidizing atmospheres, and offering short-term endurance at 1360 degrees. This makes it ideal for extreme environments characterized by high temperatures, low oxygen partial pressures, and SC presence.
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