Extruded Copper Finned Tubes
Extruded Copper Finned Tubess, also known as copper integral finned tubes or one-piece finned tubes, are widely used in petrochemical plants, refineries, natural gas processing facilities, industrial refrigeration systems, and HVAC applications, including evaporators and condensers.
- Common Standards: ASTM B75, ASTM B111, ASTM B280
- Materials: C12200 (Deoxidized Phosphorus Copper)
C70600 (Copper-Nickel 90/10)
C71500 (Copper-Nickel 70/30) - Base Tube Outside Diameter (OD): 12.7 mm – 38.1 mm (1/2″ to 1-1/2″)
- Fin Height: 6.35 mm – 15.87 mm (1/4″ to 5/8″)
Datang-Extruded Copper Finned Tubes Manufacturer
Extruded copper fin tubes are high-efficiency heat exchanger tubes where the fin structure is integrally formed from a pure copper base tube through a specialized extrusion rolling process. With a seamless connection between the fins and the base tube, there is zero contact thermal resistance. Consequently, its heat transfer efficiency is increased by 20% to 30% compared to traditional welded or tension-wound finned tubes, making it a critical high-efficiency component in heat exchange applications.
Manufacturing Process for Extruded Copper Fin Tubes
For bimetallic/composite tubes, the production process involves:
Raw Material Selection (Copper / Copper Alloy Tubes) ➔ Compression / Rolling ➔ Peeling ➔ Cleaning ➔ Pressure Testing & Sandblasting ➔ Packaging
Extruded Copper Finned Tubes Core Structure & Operating Principle
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Integral Design: Using pure copper (such as TP2/C12200 or T2/C11000) as the base tube, continuous fins are extruded directly on the outer surface via a specialized cold rolling mill. The fins and base tube form a unified structure without any joints or gaps.
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Heat Transfer Mechanism: Leveraging copper’s superior thermal conductivity, heat from the fluid inside the tube is rapidly conducted to the external fins, which then exchange heat with the outer fluid through thermal convection. This dramatically expands the overall surface area.
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Fluid Flow Optimization: Fin pitch and fin height can be customized to induce fluid turbulence and eliminate dead zones, further improving heat transfer capability.
Extruded Copper Finned Tubes Performance Advantages
| Feature | Advantage |
| High Heat Transfer Efficiency | Zero contact thermal resistance ensures stable heat transfer, with thermal resistance significantly lower than that of mechanical joint or wrapped fin tubes. |
| Exceptional Durability | The solid, single-piece construction delivers excellent vibration resistance. The fins resist detachment and deformation under high-pressure operating conditions, resulting in a longer service life. |
| Easy Maintenance & Cleaning | Smooth surfaces reduce fouling and dust accumulation, making routine cleaning and maintenance straightforward. |
| Broad Adaptability | Fin parameters and tube lengths can be fully customized to meet the requirements of diverse operating environments. |
The extruded fins are securely mounted and offer excellent stability. Their high-aspect-ratio airfoil profile makes them suitable for a wide range of heat exchangers and surface cooling units. They are widely used in air coolers and heat exchangers for vacuum furnaces.
Extruded Copper Fin Tubes Type
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Integral Medium & High Fin TubesFormed as a single piece with high structural strength and pressure resistance. Fin height is greater than fin pitch.
Outer Diameter (OD): 19.05 mm – 31.75 mm
Wall Thickness: ≥ 2.1 mm
Fin Density: 11 / 16 / 19 FPI (Fins Per Inch)
Tube Length: Up to 32 m
Materials: Metallic materials -
High Fin TubesSignificantly expanded surface area for high thermal performance; available in mono-metal and bimetal types.
Mono-Metal: Fins are formed or embedded directly on the parent tube without a liner.
Bimetallic: Features an independent alloy inner liner inside the tube, combining corrosion resistance with efficiency.
Fin Height: Up to 16 mm (0.625 inches)
Configuration: Mono-metal / Bimetal -
Integral Low Fin TubesFin height is less than or equal to fin pitch; designed for low-fouling, vibration-resistant, and high-efficiency heat transfer.
Outer Diameter (OD): 9.52 mm – 38.10 mm
Wall Thickness: ≥ 0.58 mm
Fin Density: 11 / 16 / 19 / 23 / 26 / 30 / 40 / 52 FPI
Tube Length: Up to 32 m -
Low Fin U-Bend TubesFactory pre-bent to absorb thermal shock and stress; maintains optimal fluid circulation and facilitates equipment assembly.
Bending Radius: 30R – 710R
Materials: Copper alloys, Cu-Ni alloys, Admiralty Brass (C44300), Aluminum Brass (C68700), Carbon Steel, 304 & 304L Stainless Steel -
Low Fin Tubes with Internal RibsDual-enhanced heat transfer with external low fins and internal helical ribs, significantly improving inner fluid heat transfer coefficients.
External Fin Density: 11 / 16 / 19 / 26 FPI
Internal Rib Count: 8 or 10 helical ribs
Materials: Copper, Cu-Ni alloys, Carbon Steel -
Low Fin Coiled TubesCoiled from integral low fin tubes to maximize heat transfer area and enable compact heat exchanger designs.
Coil Diameter: Customized per requirements (Minimum diameter down to 50 mm)
Materials: Copper and copper alloys
Extruded Aluminum Fin Tube Advantages
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30 Advanced Production Lines: Large-scale automated production capability operates at high efficiency to effortlessly handle both high-volume orders and urgent requests.
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Ultra-Fast Delivery: Supported by extensive raw material inventory and flexible scheduling, standard orders can be delivered in as fast as 15–30 days, significantly shortening project and maintenance timelines.
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Precision Extrusion Quality: Cold rotary extrusion ensures a tight, seamless bond between the base tube and fins, achieving zero contact resistance, superior corrosion resistance, and exceptional heat transfer efficiency.
Customizable Extruded Copper Fin Tube
We can customize the material, specification and length according to your requirements.Solve your problems anytime and anywhere. Customize fin tubes and equipment according to your needs. Provide free technical guidance. Welcome to customize with drawings, so that you can purchase without worries.
Strict Quality Inspection
Hydrostatic Pressure Test: The inner base tube is filled with water and tested at 1.5x design pressure (or per ASTM A1016), held for 10–30 seconds to guarantee zero leakage or permanent deformation along the tube and welds.
Pneumatic Underwater Air Test: Pressurized with dry compressed air (0.6–1.0 MPa) and fully submerged in water for over 1 minute—ensuring absolute zero bubble leakage for maximum operational integrity.
Extruded Copper Finned Tubes Package
To ensure seamless global delivery, your extruded copper finned tubes are packaged in fumigation-free wooden cases (or heavy-duty steel frame crates) lined with custom comb separators and moisture-proof film, combined with protective pipe end caps. This guarantees zero fin damage, prevents bending along extra-long tubes, and ensures worry-free moisture protection during ocean freight and custom clearance.
Clear shipping marks and handling labels (moisture-proof/fragile) are stenciled on the exterior to fully meet all ocean transport requirements for rust prevention, anti-deformation, and customs quarantine.
Extruded Finned Tube Quality Checks
Each of our extruded fin tube is subjected to stringent quality checks.Inspection and Tests Performed:
1.Chemical Composition inspection.
2.Mechanical Properties Test(Tensile Strength, Yield Strength, Elongation, Flaring, Flattening, Hardness, Impact Test).
3.Surface and Dimension Test.
4.No-destructive Test.
5.Hydrostatic Test.
Case Study
Case Study: 15.875×1.65x17697mm bimetal extruded fin tubes custom-made by Datang for Pakistan. Zero thermal resistance & full QA/QC loading video inside. Backed by 19 years of expertise and CNAS-certified testing, our premium tubes guarantee exceptional heat transfer efficiency and long-term reliability.
Boosting Efficiency with High-Performance Extruded Fin Tubes
When our client from Singapore approached us, they faced a critical challenge: their existing heat exchange equipment was inefficient, leading to escalating energy consumption and higher operational costs. They needed a solution that could maximize heat transfer within their current system constraints.
Tired of frequent downtime caused by corroded fin tubes? Read this case study to see how Datang’s robust extruded aluminum finned tubes saved a major Pakistan paper manufacturing plant from high maintenance costs. Discover how our 19 years of industry expertise and premium materials deliver lasting reliability and efficiency for your critical operations.
Discover how our custom air cooled heat exchangers with copper-aluminum extruded fin tubes optimized cooling for an Algerian refinery. Operating in intense desert heat, high-strength extruded fins completely shield inner copper tubes from sandstorms, boosting cooling capacity by 20% and maintaining maximum processing throughput during punishing peak-temperature months.
Recently, a valued client from Turkey ordered 1,860 pieces of high-precision extruded fin tubes (Fin OD: 57mm, Fin Pitch: 2.3mm). Discover how Datang Finned Tube delivered 1,860 high-precision extruded fin tubes to Turkey with 100% visible quality control and zero risk.
Extruded (Bimetallic) Finned Tubes Application
Cooling oil radiators element of the Extruded fin tubes.It can transfer heat quickly and improve the efficiency of thermal energy utilization.
The main advantages of Extruded fin tubes for refinery air coolers include high efficiency, corrosion resistance, low noise, energy saving and environmental protection.
Extruded fin tubes for drying radiators,The extrusion process ensures a tight connection between the fins and the tube body, thereby greatly increasing the heat dissipation area and significantly improving the heat exchange efficiency. This design allows heat to be transferred to the material faster and improves drying efficiency
Extruded finned tubes for waste heat recovery equipment,aluminum extruded fin tubes have the characteristics of high heat transfer performance and low thermal resistance, which can quickly absorb and dissipate heat, further improving the heat exchange efficiency.
Extruded finned tubes for heat exchangers in food factories,The steel-aluminum extruded finned tube adopts a compact structure design, which can achieve efficient heat exchange in a limited space. At the same time, its compact structure is also easy to install and maintain.
Extruded finned tubes for milk pasteurization heat exchangers,extruded spiral fin tubes have excellent thermal conductivity and corrosion resistance, and can operate stably for a long time in harsh working environments.
Extruded fin tubes for thermal oil heat exchangers,aluminum fins have good thermal conductivity and can effectively transfer heat from the inside of the tube to the outside of the tube, thereby improving heat exchange efficiency. At the same time, the design of the fins can increase the heat exchange area and further improve the heat exchange performance.
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Extruded Fin Tube FAQs
A: Extruded fin tube production line 30.
A: We can provide extruded fin tube samples for free.
A: After you confirm extruded fin tube sample details, the samples will be ready for delivery in 3-7days,and will be sent to you via express and arrive in 3-5days.
A: extruded fin tube can be customized, we can make the new thermoforming or extruding mode based on your drawings and we can sign a confidentiality agreement about your patented product, pls contact us for any further information.
A: Always a pre-production sample,before mass production;always final inspection before shipment.
Inspection & Guarantee Certificate is supplied with shipment, and the Third Party Inspection is available.