ASTM A179 Extruded Finned Tubes for Waste Heat Recovery in Low-Temperature Environments

• High Thermal Conductivity Maximizes Heat Capture Efficiency:  This property ensures rapid heat transfer between low-temperature media and the working fluid (e.g., hot water, thermal oil). And the one-piece extruded fin structure eliminates weld interfaces between fins and the base tube, minimizing thermal contact resistance. Compared with welded finned tubes, heat transfer efficiency is improved by 15–20% in low-temperature environments where heat driving force is weak.
• Structural Robustness Adapts to Industrial WHR Operating Conditions:The extrusion process forms fins by directly stretching the base tube material, resulting in a metallurgical bond between fins and the tube. This design resists fin detachment caused by vibration or thermal cycling. And the seamless base tube complies with ASTM A179 dimensional tolerance requirements, ensuring uniform wall thickness and stable pressure-bearing capacity (≤10 MPa), suitable for most low-temperature WHR system operating pressures.
• Cost Efficiency for Large-Scale Deployment

1.Industrial Furnace Flue Gas Low-Temperature Heat Recovery:Tail sections of steel rolling heating furnaces, ceramic kilns, and small coal-fired boilers.

2.Industrial Process Fluid Waste Heat Recovery:Cooling of low-temperature process streams in chemical, food, and pharmaceutical industries.

3.Industrial Wastewater Low-Grade Heat Recovery:Treatment of non-corrosive wastewater from steel plants, paper mills, and textile factories.