In industrial heat transfer systems, efficiency and durability are paramount. The bimetal extruded fin tube stands out as a game-changer, offering superior performance compared to traditional finned tubes. As a leading bimetal extruded fin tube manufacturer, we provide cutting-edge solutions tailored to diverse industrial needs.
What Are Bimetal Extruded Fin Tubes?
Bimetal extruded fin tubes feature a metallurgically bonded structure with a base tube (16-38.1mm diameter: carbon steel, stainless steel, or copper) and aluminum/copper fins formed via cold extrusion. Key specs: 7-11 fins per inch, up to 16.5mm fin height, and -50°C to 300°C operating range.
Technical Advantages
- Material synergy: Base tube strength + fin thermal conductivity (200-237 W/m·K) with minimal contact resistance (<0.01 m²·K/W)
- Structural innovation: Integral fins prevent loosening; withstands 4.0 MPa pressure cleaning
- Performance: 30-40% higher efficiency than wound fin tubes; >10-year service life
Manufacturing Process
Precision cold extrusion bonds base tube with aluminum sleeve, forming fins with uniform 0.4-0.6mm thickness, ±0.1mm tolerances, and >20 MPa bond strength.
Key Applications
- Power Generation: Air preheaters/economizers deliver 30-40% efficiency gains (600MW plant: 8 tons/day steam savings)
- Chemical Processing: Stainless steel-aluminum construction resists corrosion in 300°C environments
- Food Processing: Smooth copper-aluminum surfaces meet hygiene standards with easy cleaning
Industry Compliance & Custom Solutions
Our products meet ASTM A1012-10(2025), ISO 9001, and ASME BPVC standards. Custom options include material combinations, special fin geometries, and lengths up to 18 meters.
Conclusion
Bimetal extruded fin tubes deliver unmatched efficiency for modern heat transfer systems. With the global heat exchanger market projected to reach $24.6 billion by 2025, these components are critical for industrial energy efficiency. Contact us for high efficiency heat exchanger tubes and custom bimetal fin tube solutions.