Cangzhou Datang Steel Pipe Co., Ltd. is proud to offer a versatile range of finned tubes designed to excel in various industrial applications. Our exquisite selection includes tension wound finned tubes, embedded finned tubes, and extruded finned tubes, each crafted to perfection.
Our tension wound finned tubes, a marvel of engineering, are meticulously formed by expertly winding a strip of premium aluminium or copper around the tube under precise tension, ensuring optimal performance and durability. Harnessing the power of advanced strip winding technology, we provide an array of fin types, each tailored to specific needs: L-Fin, LL-Fin, and KL-Fin, offering unparalleled versatility and efficiency.
Embedded fins (G-Fins) are ingeniously crafted by winding a high-quality aluminium or copper strip into a helical groove meticulously machined onto the tube's outer surface, creating a seamless blend of innovation and functionality.
Our finned tubes, including tension wound, embedded, and extruded varieties, are essential components in air coolers, finding their niche in numerous key application areas:
Heat exchangers at power plants, spanning electric, nuclear, thermal, and geothermal, stand to benefit immensely from our cutting-edge solutions.
Steam condensate systems
Key industries such as the chemical and petrochemical sector
Innovative food processing plants and the latest in refrigeration technology
Diverse industrial applications, from bustling steel mills to efficient incinerators and advanced gas compression facilities

L-Foot Finned Tube
Experience the pinnacle of heat transfer technology with our L-footed finned tubing, expertly engineered to deliver maximum efficiency at lower temperatures in a cost-effective manner. The distinctive L-shaped design ensures fins remain robustly intact, adeptly enduring both heat cycling and the vibrations of high velocity air.
Our L-Foot Finned Tube is available in several innovative fin variations:
Knurled Fin - Featuring mechanical knurling that creates an interference fit, these fins ensure a secure bond to the tube wall surface.
LL Fin - This Double Overlap design (Double LL) offers comprehensive coverage, enveloping the base tube with a double thickness for enhanced performance.
Perforated L Fin - Ingeniously designed to disrupt airflow, the 'tear drop' slits molded around the helix add a new dimension to air flow dynamics.
L-Foot Fin / Wrap-On Fin
L-Foot Tension Wound Finned Tubes Also known as Wrap-On Finned Tubes, they are superbly suited for low-temperature applications, reliably operating below 300 degrees Fahrenheit while providing essential tube wall protection. These tubes feature an aluminium fin strip, meticulously wound in a helical pattern around the tube circumference, exemplifying precision engineering. A sophisticated 'foot' is formed on one side of the fin strip, lending the product its name: L-Foot. Subsequent winding of the strip around the tube, with the foot pressing firmly on the outer surface, ensures steadfast performance. The short horizontal limb of each L-Foot completely covers the base-tube surface, maximizing contact and efficiency. The tension applied during wrapping forces the fin foot to seat with precision, holding the fin securely in place for optimal performance. Our L-footed finned tubing shines in delivering exceptional heat transfer efficiency at reduced temperatures. The innovative L-shaped design maintains fin rigidity, expertly combating heat cycling and resisting the effects of high-velocity air vibrations. The fin also offers remarkable atmospheric protection for the tube wall, effectively shielding it against corrosion. The expansive contact surface between tube and fin enhances thermal transfer capabilities, pushing efficiency to new heights. This ingeniously designed fin is not only high in efficiency but also remarkably cost-effective, offering the best of both worlds.
To maintain the integrity of the structure, the ends of the fins are thoughtfully stapled, preventing any unravelling of the aluminium fin and ensuring perpetual contact between the fin foot and the tube. This indispensable contact is the lifeline of the air cooler's operation, as it masterfully facilitates the transfer of heat from the tube wall, through the adeptly designed fin, and into the ambient air surrounding it.
Advantages:
Ideal for applications at lower temperatures, offering seamless integration.
This finning type stands as the pinnacle of cost-effectiveness, unrivaled by other methods.
Even when fins fail during production, they can be effortlessly removed, allowing the bare tube to be reused for finning anew.
No necessity arises for crafting a helical groove over the core tube, simplifying the process.
Fins can be meticulously placed on an exceptionally thin-walled tube, particularly beneficial when utilizing costly alloys as the core tube.
The tube is engineered to endure temperatures soaring up to 130°C, without succumbing to atmospheric corrosion or thermal stress.
Application:
Widely employed in oil and gas refineries, enhancing operational efficiency.
A staple in the petroleum, chemical, and petrochemical industries, ensuring robust performance.
Integral to the treatment of natural gas, optimizing processing capabilities.
Essential in the steel making industry, supporting high-temperature operations.
A cornerstone in power plants, contributing to reliable energy production.
Key component in air conditioning systems, providing superb thermal regulation.
Highly effective in compressor coolers, enhancing cooling efficiency.
KL Footed Fin / Knurled L Footed Fin
The KL fin is also famously known as the knurled L fin. This finned tube resembles the Wrap-On fin closely and is crafted using both innovative Wrap-On and Embedded techniques. The fins are meticulously crafted from strips shaped into an L form, akin to the L type, cleverly rolled into a taper that induces curling. The fin is then artfully helically wound onto the tube in a continuous loop, maintaining tension throughout. The fin snugly embraces the tube, ensuring a secure fit. A spinning tool expertly knurls the base tube, allowing the fin's foot to interlock with the base tube's knurling, creating a firm bond and superior thermal performance.
If the correct fin strip is utilized, each fin's foot perfectly aligns with the next, leaving no gaps between fins. This precise alignment offers the tube robust protection against corrosion. Much like L fins, these fins are securely attached at each end, preventing any unwinding. In metal-centric applications, KL-Foot tension wound finned tubes are a preferred choice for their reliability. Capable of withstanding a maximum operating temperature up to 320°C (608°F), offering exceptional durability.
Advantages:
Tubes designed with corrosion resistance in mind, ensuring longevity.
Exceptionally resistant to vibration, ensuring stability in operation.
Engineered to endure temperatures reaching up to 320°C (608°F) with consistent reliability.
Combining high thermal performance and stress resistance with air corrosion protection, this solution is a unique blend.
KL fins serve as a versatile replacement for any type of finned tube, offering adaptability.
LL-Foot Fin / Overlapped L
Fins are crafted from strips in a manner akin to the L type, but with a precisely controlled stepped double L shape, rolled into a taper inducing a curl. The LL-Foot Fin - Overlapped L is then expertly helically coiled onto the tube, maintaining tension. The fin tenaciously clings to the tube, with one fin overhanging the foot of the next, ensuring the base tube is fully covered. This full coverage offers the tube excellent protection from corrosion. In corrosive environments, this tube type is a favored alternative to the more costly extruded type fin.
The efficient design of the Durable G Finned Tube Heat Exchanger ensures the fins are securely anchored at each end, employing a method akin to the reliable L fins. This innovative fin attachment guarantees excellent durability and performance. Engineered to perfection, the LL-type fin tube is tailored for extreme conditions, effortlessly withstanding temperatures of up to 350 degrees Fahrenheit (177°C). This makes it an ideal choice for high-temperature applications.
Parameters
PRODUCT |
TYPE |
TUBE MATERIAL |
FIN MATERIAL |
TUBE SIZE |
FIN SIZE |
Heat Exchanger Finned Tube |
Extruded Fin Tube |
All Kind of Material can be applied |
Aluminum A1100 |
15.88~50.8 |
7~11.5FPI |
Fin Height Max 16mmH |
L,LL,KL-Foot Fin Tube |
All Kind of Material can be applied |
Copper C1100, C1220... |
12.70~50.8 |
2.3~11.5FPI |
Wrap Around Finned Tube |
Fin Height Max 16mmH |
G-Fin Tube (Embedded Type) |
Aluminum A1100, A1050, A1060... |
|
High Frequency Welded Fin Tube |
A179 Carbon Steel Tube |
Carbon Steel Tube |
12.70~160 |
1.5~7FPI |
Stainless Steel Tube |
Stainless Steel Tube |
0.8~3.2mm. Thickness |
Alloy Steel Material |
Alloy Steel Material |
|
Integral Copper & Copper Alloy High Finned Tube |
C12200, C11000, C70600 |
C12200, C11000, C70600 |
15.88~22.23 |
5~9FPI |
Max 12mm. H |
Oval Finned Tube |
Carbon Steel Tube |
Carbon Steel Tube |
All Size Available |
5~15FPI |
Stainless Steel Tube |
Stainless Steel Tube |
Alloy Steel Material |
Alloy Steel Material |
Copper & Copper Alloy Tube |
Copper & Copper Alloy Tube |
Monometallic Fin Tube |
Low Fin Tube |
Carbon Steel, stainless steel, titanium, copper, brass, nickel alloy, etc. |
-- |
9.52~40 |
12, 16, 19 28 FPI, etc. |
Turbo-C Tube |
Turbo-E Tube |
Corrugated Tube |
All Kind of Material |
-- |
6.35~40 |
2~9FPI |
Applications
Our robust heat exchangers are versatile and perfect for an array of applications. They excel in systems such as aftercoolers, air coolers, air heaters, and charge air chillers. Additionally, they are ideal for condensers, convection heaters, electric heaters, evaporators, and fluid coolers. These heat exchangers are also suitable for gas coolers, heat pipes, hydrogen coolers, industrial tumble dryers, and intercoolers. Furthermore, they enhance the efficiency of immersion heaters, oil coolers, radiators, refrigeration units, solvent recovery systems, and steam-to-air heat exchangers. Experience unparalleled versatility and efficiency across all your thermal management needs..







DATANG STEEL PIPE Co., Ltd stands tall as an esteemed processor and wholesaler, with an unwavering presence in global markets for an impressive 17 years.
Explore a vast array of our exceptional products, including Finned tubes, Fin tube heat exchangers, Air coolers, Radiators, Economizers, and Condensers,Discover our premium quality Vaporizer/Evaporator, exclusively crafted by Datang.
Our expansive inventory boasts a significant stock of high-grade carbon steel seamless pipes,along with ERW pipes, SSAW pipes, alloy steel pipes, and more. Complete your requirements with our available pipe fittings and flanges.
We warmly invite you to visit our factory and eagerly anticipate the opportunity to collaborate with you.

DATANG STEEL PIPE Co., Ltd is a trusted manufacturer and wholesaler with a steadfast export legacy spanning 17 years in global markets.
Our professional sales and technical team are here to design tailored solutions and offer product customization to meet your specific needs.
Explore a comprehensive selection of our top-tier Finned tubes at Datang.
Our cutting-edge production facilities include the following,
'G' Type Fin Tube (Embedded Finned Tube), and 'L', 'LL', 'KL' Type Fin Tubes (Wrap Around Finned Tubes) with 6 production lines.
High Frequency Welded Fin Tube, including Serrated Finned Tube, available across 8 lines.
Laser Welding Finned Tube, precisely engineered on 1 dedicated line.
Extruded Finned Tube, featuring Bimetallic Fin Tubes and Integral Monometallic Low Fin Tubes, with 6 lines of production.
We specialize in customizing Fin tube heat exchangers, Air coolers, Radiators, Economizers, Condensers, and Vaporizer/Evaporators to meet diverse industrial applications.
Our extensive spot inventory includes premium carbon steel seamless pipes, ERW pipes, SSAW pipes, and alloy steel pipes, specifically for fin tube manufacturing.
Additionally, we offer a complete range of pipe fittings and flanges to suit your projects.
We cordially invite you to visit our state-of-the-art factory and look forward to establishing a fruitful partnership.
Customer Tour&Cooperation




Frequently Asked Questions
Q1: Are you a factory or a trade company?
A1: We are a factory with an excellent subsidiary international trade company dedicated to exports.
Q2: What solutions do you offer?
A2: Cangzhou Datang Steel Pipe Co., Ltd. excels as a professional manufacturer specializing in Radiator and Heat Exchanger Equipment as well as a diverse array of Fin Tubes.
Q3: Where is your manufacturing facility situated?
A3: Our state-of-the-art manufacturing facility is strategically located in Cangzhou city, Hebei province, China, boasting an impressive array of machinery.
Q4: How is quality assurance managed?
A4: Each shipment is accompanied by a detailed Inspection & Guarantee Certificate, with the option for Third Party Inspection for added assurance.
Q5: What sets your company apart from others?
A5: Our company stands out with a vast pool of highly skilled technical personnel, highly competitive pricing, and superior after-sales service compared to other players in the industry.
Q6: Is shipment arrangement a service you offer?
A6: Absolutely! We efficiently handle shipment logistics, leveraging our long-standing partnerships with trusted forwarders.
Q7: What is the typical delivery timeline?
A7: Delivery time is contingent upon the order specifics, typically within 30 days post receipt of your advance payment.
Q8: Are samples available for provision?
A8: Yes, we offer complimentary small samples from our inventory, ensuring you can assess our quality firsthand.
Reach out today for more detailed information and take the next step towards exceptional solutions!