Radiant Tube
Radiant tubes are seamless, high-temperature components essential for maximizing efficiency in gas and electrically heated furnaces. Engineered for extreme environments, these tubes are manufactured using premium materials—including iron-chromium-aluminum alloys (via powder or conventional metallurgy), heat-resistant casting alloys, and nickel-based alloys.
Each tube is highly customized to meet precise industrial specifications, ensuring superior thermal transfer and longevity.
Key Features of Radiant Tubes:
Premium Alloy Construction: Available in SS310, Inconel 600/601, and advanced Powder Metallurgy Alloys (FeCrAl) for superior creep strength.
High Temperature Rating: Notably, it reliably operates at temperatures up to 1150°C when paired with bundle rod heaters.
- Versatile Designs: Custom-fabricated in Straight, U-Shaped, W-Shaped, or P-Shaped configurations to match your specific furnace geometry.
- Leak-Proof Integrity: Seamless manufacturing ensures a gas-tight seal, preventing furnace atmosphere contamination.
- Wide Sizing Options: Standard diameters ranging from 60mm to 250mm, with fully customizable lengths and flange types (MS/SS).
Advantages of Radiant Tubes:
Corrosion Resistance: First and foremost, our high-alloy tubes are specifically designed to resist carburization, nitriding, and oxidation. Therefore, they are perfect for harsh heat treatment atmospheres, especially those involving carburizing and galvanizing.
Enhanced Element Life: Moreover, by effectively isolating the heating element from the process gas, the tube prevents chemical attack. As a direct result, your expensive heaters last longer, ultimately requiring fewer replacements.
Superior Heat Transfer: The thin-walled, high-conductivity design ensures that heat radiates efficiently from the source to the product without significant energy loss.
Structural Stability: Even at 1100°C+, our centrifugal cast and wrought alloy tubes maintain their shape, resisting sagging and deformation over time.
Uses & Applications of Radiant Tube
Heat Treatment Furnaces: Essential for Gas Carburizing and Galvanizing lines where atmosphere control is critical.
Melting & Holding Furnaces: Protecting elements in aluminum or non-ferrous metal baths (Dosing Furnaces).
Diffusion Furnaces: Used in semiconductor and aerospace component manufacturing.
Dental & Lab Furnaces: ensuring contamination-free heating for sensitive medical materials.
Indirect Heating: Any application where the combustion gas or electric element must not contact the product directly.
