Radiant Tubes are specialized furnace heating elements designed to provide indirect, high-temperature heating in industrial furnaces and kilns.
They operate by housing heating elements (such as bundle rod heaters, cartridge heaters, or gas-fired burners) inside a sealed alloy or ceramic tube, which then transfers heat by radiation and convection to the furnace chamber.
This design isolates the heating element from the process atmosphere, protecting it from oxidation, carburization, or chemical attack, while ensuring long life, high thermal efficiency, and uniform temperature distribution.
Radiant tubes are widely used in heat treatment, carburizing, nitriding, and aluminium melting applications, where clean, controlled, and efficient heat transfer is required.
| Parameter | Value / Range |
| Tube Materials | FeCrAl, NiCr, SS310, Incoloy, Inconel, SiC, Si3N4 |
| Manufacturing Process | Powder metallurgy, seamless mandrel extrusion |
| Configuration Options | Straight, U-shaped, W-shaped, P-shaped, custom profiles |
| Outer Diameter Range | 25 mm to 200 mm (custom sizes available) |
| Wall Thickness Range | 1 mm to 5 mm (application optimized) |
| Maximum Operating Temperature | 1,400°C (2552°F) continuous operation |
| Standard Length Options | Up to 3,000 mm straight (custom lengths available) |
| Sealing Technology | Ceramic-to-metal seals, gasket flanges |
| Thermal Shock Resistance | Superior resistance to rapid temperature changes |
| Corrosion Resistance | Excellent resistance to oxidizing/reducing atmospheres |
| Integration Compatibility | Bundle rod, cartridge heaters, gas burner systems |
| Quality Standards | Advanced materials testing and dimensional verification |
| Custom Engineering Options | Unlimited shapes, sizes, and integration features |
