Radiant tubes can last anywhere from one to five years depending on the furnace and…
Bringing the Heat with Radiant Tubes
Radiant tubes are essential components in industrial furnaces, ovens, and kilns, serving as tubular heating elements that transfer heat into the firebox primarily through radiation. This method allows for efficient heating without the need for air circulation. Typically constructed from stainless steel or advanced alloys—such as iron-chromium-aluminum or nickel-based materials—radiant tubes are engineered to withstand high temperatures, typically operating between 600-1200 °C. Their applications span heat-treating metals, metal processing and manufacturing glass, providing a clean, highly controllable environment for both industrial processes and laboratory work.
Our Radiant Tubes Outshine the Rest
Alloy Engineering is a trusted supplier of radiant tubes, renowned for fabricating low-mass designs that maintain durability while maximizing heat transfer. Our tubes deliver exceptional efficiency, reduce energy consumption, and significantly lower operating expenses.
We offer a wide range of fabricated, wrought tube types used across industries such as chemical processing, power generation, and oil refining. Our product lineup includes:
- P-tubes: These P-shaped or partially P-shaped tubes are designed to accommodate thermal expansion and optimize heat transfer. Their unique shape facilitates the efficient routing of gases or fluids within the furnace.
- W-tubes: Commonly used in petrochemical processing and refineries, W-shaped tubes increase the surface area of the heating element, making them ideal for industrial and laboratory furnaces or boilers.
- U-tubes: Known for their efficiency, U-shaped tubes are frequently used in furnace heat exchangers to transfer heat from fluids or gases to the target sample.
- Straight tubes: As the name suggests, straight radiant tubes deliver direct radiant heat to the firebox or heated areas of a furnace or oven.
- Recuperator tube bundles: These are used in heat exchangers to transfer heat from one medium (such as hot gases) to another without mixing them, thereby recovering energy that would otherwise be lost and boosting overall process efficiency.
In addition to radiant tubes, we supply critical system components such as bungs, mounting flanges, and insulation. Bungs are removable plugs that seal heat exchangers and provide maintenance access. Mounting flanges connect various system elements, while high-quality insulation minimizes heat loss, enhancing the thermal efficiency and performance of the entire radiant tube system.
We support all OEM furnace tube designs. Our thin, lightweight radiant tubes are highly resistant to thermal fatigue, sagging, and cracking, all while delivering optimal thermal transfer performance.
The Welding and Fabrication Experts You Need
Alloy Engineering is a proud member of Heat Transfer Research Incorporated (HTRI) and utilizes HTRI thermal design software, as well as CodeCalc for mechanical design in accordance with the American Society of Mechanical Engineers (ASME) Code, with S, U, and R Stamps. As a custom heat exchanger fabricator, we have extensive experience working with stainless steels and high-nickel alloys. Our custom fabrications are welded to ASME/AWS specifications by expert, highly trained welders and fabricators.
We utilize SolidWorks 3D fabrication drawings for precision. Our capabilities include working with carbon steel, stainless steel, high-nickel alloys, reactive metals, and explosion-clad materials.
Materials Innovation in Radiant Heat Tube Design
At Alloy Engineering, we are committed to advancing radiant tube technology through the use of innovative alloys and coatings. Our ongoing research and development efforts focus on materials that enhance performance and extend the service life of radiant tubes. By leveraging the latest advancements in high-temperature alloys and protective coatings, we deliver solutions that resist oxidation, corrosion, and thermal fatigue—ensuring reliable, long-lasting performance in even the most demanding environments.
To learn more about radiant tube technology and Alloy Engineering’s solutions, call (440) 243-6800 or contact us.
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