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Product Description
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Seamless High-Frequency Welded Finned Tubes
Enhance Heat Transfer Efficiency in Demanding Environments
Our Seamless High-Frequency Welded (HFW) Finned Tubes are engineered for superior performance in the most demanding industrial heat exchange applications. By integrating high-frequency welding technology with seamless base pipes, we deliver a product that combines maximum heat transfer efficiency with exceptional durability .
These finned tubes are the optimal solution for applications requiring resistance to high pressure, high temperature, and thermal cycling, including waste heat recovery, economizers, air coolers, and petrochemical processing.
Key Features and Structural Characteristics
Our finned tubes are manufactured to meet rigorous international standards, ensuring reliability and longevity.
Base Tube Materials: Available in a variety of materials to suit your specific environment, including 20# Carbon Steel, A179, 304/316L Stainless Steel, and Alloy Steel (e.g., 12Cr1MoV) .
Fin Materials: Carbon Steel, Stainless Steel, or Aluminum (A1100) .
Finning Process: Utilizes High-Frequency Welding (HFW) . This process ensures a strong, metallurgical bond between the fin and the tube, resulting in low contact resistance and high mechanical stability .
Fin Types: Available in spiral or longitudinal configurations depending on fluid and gas flow requirements .
Core Advantages
Superior Heat Transfer: The extended fin surface increases the heat transfer area by 3 to 8 times, boosting overall efficiency by over 40% compared to bare tubes .
Exceptional Durability: The use of a seamless base tube eliminates the risk of weld seam failure, making these tubes resistant to high-pressure and high-temperature corrosion. This ensures a lifespan 30% longer than traditional welded tubes .
High Temperature & Pressure Resistance: Capable of withstanding continuous operating temperatures exceeding 400°C and pressures ranging from 2.5 to 10 MPa .
Corrosion Resistance Options: Customizable with anti-corrosion coatings such as hot-dip galvanizing, aluminum cladding, or epoxy coatings to perform reliably in acidic, coastal, or high-humidity environments .
Technical Specifications
The table below outlines common configurations available. Custom sizes and materials are available upon request.
Parameter Details / Range
Tube Outer Diameter 12.70 mm – 160 mm
Tube Wall Thickness 2.0 mm – 10.0 mm
Fin Height Up to 32 mm (customizable)
Fin Pitch 1.5 FPI – 11.5 FPI (Fins Per Inch)
Base Tube Material Carbon Steel (A179, A192), Stainless Steel (304, 316L), Alloy Steel
Fin Material Carbon Steel, Stainless Steel, Aluminum (1050, 1060)
Welding Process High-Frequency Resistance Welding (HFW)
Length Up to 18 meters (custom cut-to-length)
Primary Applications
Industrial Boilers & HRSG: Used extensively in economizers and air preheaters to recover waste heat from flue gas, significantly improving boiler efficiency and reducing exhaust temperatures .
Petrochemical & Refining: Ideal for crude oil heating, reactor cooling, and heat exchangers in corrosive environments where 316L stainless steel variants provide resistance against sulfide corrosion .
Workshop & HVAC Heating: Effective for space heating using steam or thermal oil in large industrial facilities, providing even heat distribution .
Food Processing: The seamless structure ensures no contamination or leakage, providing precise temperature control for applications like frying, baking, and fermentation .
Why Choose Our Finned Tubes?
We combine high-quality seamless tubing with advanced high-frequency welding tec
