At Cangzhou Datang Steel Pipe Co., Ltd., we proudly present a versatile array of finned tubes designed to meet your diverse needs, including tension wound finned tubes, embedded finned tubes, and extruded finned tubes.
Our tension wound finned tubes are meticulously crafted by wrapping a robust strip of either aluminium or copper around the tube with precise tension, ensuring optimal performance and efficiency. Explore the versatility of our strip winding technology, which allows the creation of various fin types such as L-Fin, LL-Fin, and KL-Fin, each tailored for specific industrial applications.
Embedded fins (G-Fins) are expertly crafted through the process of winding an aluminium or copper strip into a helical groove precisely machined on the tube's exterior surface, enhancing thermal performance.
Our tension wound, embedded, and extruded finned tubes are essential components for air coolers with widespread applications across various industries, including:
Heat exchangers in power plants, be it electrical, nuclear, thermal, or geothermal, benefit immensely from our cutting-edge finned tubes.
Enhance your steam condensate systems with our high-performance finned tube solutions.
Revolutionize the chemical and petrochemical industry with our reliable and efficient finned tubes.
Optimize your food processing plants and refrigeration technology with our top-tier finned tubing solutions.
Our industrial-grade finned tubes are perfect for steel mills, incinerators, and gas compression facilities, ensuring maximum efficiency.

L-Foot Finned Tube
The highly efficient, yet cost-effective, L-footed finned tubing is engineered to deliver maximum heat transfer capabilities at lower temperature ranges. Its unique L-shaped structure ensures that fins remain securely attached, effectively resisting heat cycling and high-velocity air vibrations.
The L-Foot Finned Tube can be customized with these fin variations to suit specific needs:
Knurled Fin - This fin type features an interference fit with mechanical knurling that ensures a robust bond between the fin material and the tube wall surface.
LL Fin - Featuring a double overlap design, the LL Fin provides comprehensive double strip thickness coverage for the entire base tube.
Perforated L Fin - This innovative fin design incorporates 'tear drop' slits around the helix, facilitating improved airflow dynamics.
L-Foot Fin / Wrap-On Fin
L-Foot Tension Wound Finned Tubes also referred to as Wrap-On Finned Tubes, are ideal for applications where the temperature remains below 300 degrees Fahrenheit, offering crucial protection for the tube wall in low-temperature scenarios. These tubes feature a thin aluminium fin strip meticulously wound helically around the tube's circumference to ensure superior performance. A 'foot' is precisely formed on one side of the fin strip, giving it the distinctive name 'L-Foot.' The strip is wound tightly around the tube, with the foot firmly resting on the tube's outer surface for optimal efficiency. The short horizontal limb of the L is crafted to be in full contact with the base-tube surface, offering complete coverage. The tension applied as the fin is wrapped ensures that the fin foot is securely seated on the tube, maintaining a firm hold. L-footed finned tubing is designed for maximum heat transfer efficiency at lower temperatures. Its unique L-shaped design ensures that fins are held rigidly in place, effectively resisting heat cycling and high-velocity air vibrations. This fin design offers protection to the tube wall against atmospheric corrosion, enhancing durability. The extensive contact surface area between the tube and the finning significantly enhances heat transfer capabilities. This innovative fin design is both highly efficient and cost-effective, making it an excellent choice for a variety of applications.
The fins' ends are meticulously stapled to prevent the aluminium fin from unraveling, ensuring maintained contact between the fin foot and the tube. This vital contact is essential to the efficient functioning of the air cooler. It ensures the seamless transfer of heat from the tube wall, through the meticulously engineered fin, and into the surrounding ambient air.
Advantages:
Perfectly suited for low-temperature applications, the G Finned Tube Heat Exchanger showcases unmatched performance.
This finning type stands out as the most cost-effective option compared to other methods, delivering exceptional value.
Experience unparalleled convenience as failed fins can be effortlessly removed during production, allowing the bare tube to be refitted for finning with ease.
No need to create a helical groove on the core tube, simplifying the process while maintaining efficiency.
Fins can be seamlessly placed on an ultra-thin-walled tube, a highly desirable attribute when utilizing expensive alloy core tubes.
The tube withstands temperatures up to 130°C without risking atmospheric corrosion or thermal stress, ensuring durability and reliability.
Application:
Vital in Oil and Gas Refineries, offering exceptional performance and reliability.
Perfectly suited for the Petroleum, Chemical, and Petrochemical Industries, meeting the highest demands.
Tailored for Natural Gas Treatment, ensuring efficient processing and handling.
An indispensable asset in the Steel Making Industry, elevating production standards.
Playing a crucial role in Power Plants, propelling energy efficiency forward.
Ideal for Air Conditioning systems, enhancing comfort and performance.
Critical for Compressor Coolers, optimizing cooling efficiency.
KL Footed Fin / Knurled L Footed Fin: Ingenious design with superior functionality.
The versatile KL fin is also widely recognized as the knurled L fin. This finned tube is almost identical to the Wrap-On fin, crafted using a blend of both Wrap-On and Embedded techniques for superior performance. Crafted from strips prepared into an L shape akin to the L type, then artfully rolled into a taper that encourages curling. It is helically wound onto the tube in a continuous loop under tension, ensuring a secure fit. The fin lovingly embraces the tube. A spinning tool expertly knurls the base tube, integrating the foot of the fin into the knurling for a robust bond and enhanced thermal performance.
With the right fin strip, each fin nestles snugly against the next, eliminating any gaps and maximizing efficiency. This seamless design protects the tube from corrosion, ensuring longevity. Much like L fins, these fins are securely attached at each end to prevent unwinding, ensuring stability. KL -Foot tension wound finned tubes are typically employed in metal applications, providing exceptional reliability. Capable of operating efficiently at temperatures up to 320°C (608°F), ensuring robust performance.
Advantages:
Tubes with superior resistance to corrosion, guaranteeing longevity and reliability.
Engineered for outstanding vibration resistance, maintaining stability under challenging conditions.
Designed to withstand remarkable temperatures of up to 320°C (608°F), offering consistent performance.
Offers unparalleled thermal performance and stress resistance combined with exceptional protection from air corrosion—a truly unique combination.
Any finned tube configuration can be seamlessly replaced with KL, offering versatility in applications.
LL-Foot Fin / Overlapped L: A sophisticated innovation for superior performance.
Fins crafted from strips, similar to the L type, but with a meticulously controlled stepped double L shape, rolled into a taper promoting curling. The LL-Foot Fin - Overlapped L is helically coiled onto a tube under tension, ensuring a secure fit. The fin clings to the tube, with an overhang from one fin seamlessly covering the foot of the next, fully protecting the base tube. As a result, the tube enjoys superior protection against corrosion, safeguarding its durability. In environments prone to corrosion, this particular type of tube emerges as a highly effective and cost-efficient alternative to the more expensive extruded type fin. The G Finned Tube Heat Exchanger, with its Advanced Embedded Fin Technology, is specifically designed to withstand these challenging conditions, ensuring durability and long-lasting performance without the hefty price tag.
The fins are meticulously secured at each end, utilizing the same reliable method employed for L fins. This innovative approach guarantees stability and enhanced heat transfer efficiency, making it a preferred choice for a variety of industrial applications. The LL-type fin tube boasts impressive thermal resilience, capable of withstanding temperatures up to 350 degrees Fahrenheit (177 degrees Celsius). This makes it exceptionally suitable for operations demanding high thermal endurance, ensuring safety and efficiency across diverse temperature ranges.
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 |
Application
Our versatile G Finned Tube Heat Exchanger finds its applications in an extensive array of industries and thermal systems including but not limited to: aftercoolers, air coolers, air heaters, charge air chillers, condensers, convection heaters, electric heaters, evaporators, fluid coolers, gas coolers, heat pipes, hydrogen coolers, industrial tumble dryers, intercoolers, immersion heaters, oil coolers, radiators, refrigeration systems, solvent recovery systems, and steam to air heat exchangers. Each application benefits from the enhanced efficiency and reliability of our advanced embedded fin technology..







For over 17 glorious years, DATANG STEEL PIPE Co., Ltd has built a sterling reputation as a premier processor and wholesaler, exporting our stellar products to global markets with unrivaled excellence.
Discover an extensive array of products including Finned tubes, Fin tube heat exchangers, Air coolers, Radiators, Economizers, and Condensers, all crafted with precision and care.Explore our Vaporizer/evaporator offerings, a testament to Datang's commitment to superior quality and innovation.
Our vast inventory boasts high-quality carbon steel seamless pipes, ensuring you have access to the finest materials available.From ERW pipes, SSAW pipes, to alloy steel pipes, we provide an expansive selection of pipe fittings and flanges to meet your every need.
We warmly invite you to tour our state-of-the-art factory and eagerly anticipate the opportunity to collaborate with you for mutual success.

With 17 years of excellence, DATANG STEEL PIPE Co., Ltd stands as a distinguished manufacturer and wholesaler, proudly serving global markets with unparalleled integrity and quality.
Our dedicated team of sales and technical professionals work tirelessly to design tailored solutions and offer product customization crafted just for you.
Immerse yourself in our extensive range of meticulously crafted Finned tubes, available exclusively at Datang.
We are equipped with advanced production facilities, setting the benchmark for quality and innovation:
'G' Type Fin Tube (Embedded Finned Tube), 'L' 'LL' 'KL' Type Fin Tube (Wrap Around Finned Tube) (6 lines) – precision engineered for optimal performance.
High Frequency Welded Fin Tube (Including Serrated Finned Tube) (8 lines) – crafted with cutting-edge technology for superior efficiency.
Laser Welding Finned Tube (1 line) – delivering precision and durability with every weld.
Extruded Finned Tube (Bimetallic Fin Tube & Integral Monometallic Low Fin Tube)(6 lines) – designed for excellence and reliability.
We offer customization for Fin tube heat exchangers, Air coolers, Radiators, Economizers, and Condensers, tailored to meet your specific requirements. Our expertise extends to Vaporizer/evaporators, ensuring top-notch performance and innovation.
Our inventory is stocked with high-quality carbon steel seamless pipes, crucial for the manufacture of superior fin tubes. We offer ERW pipes, SSAW pipes, and alloy steel pipes, providing the essential components needed for fin tube production.
A full range of pipe fittings and flanges are readily available to complement your projects.
We extend a warm invitation to visit our factory and are excited about the prospects of forging a successful partnership with you.
Customer Tour&Cooperation




FAQ
Q1: Are you a factory or trade company?
A1: We proudly operate both as an extensive manufacturing facility and as a dynamic subsidiary international trade company dedicated to seamless exports.
Q2: What can you provide?
A2: Cangzhou Datang Steel Pipe Co., Ltd. excels as a premier manufacturer of Radiators, Heat Exchanger Equipment, and a wide array of Fin Tubes.
Q3: Where is your factory?
A3: Our state-of-the-art facility is strategically located in Cangzhou city, Hebei province, China, boasting a full suite of advanced machinery.
Q4: How do you control quality?
A4: We ensure top-notch quality through an Inspection & Guarantee Certificate provided with every shipment, complemented by optional Third Party Inspections for added assurance.
Q5: What are the advantages of your company?
A5: We stand out with our team of seasoned professionals, competitive pricing, and superior after-sales service, setting us apart from the competition.
Q6: Can you arrange the shipment?
A6: Absolutely, we offer comprehensive shipping solutions, partnering with long-standing forwarders to ensure smooth and timely deliveries.
Q7: How about the delivery time?
A7: Delivery schedules are tailored to your order specifics, typically within 30 days post receipt of your advance payment.
Q8: Can you provide sample?
A8: Yes, we offer small samples from our available stock at no cost to you, showcasing our commitment to quality.
Please reach out today for more information and personalized assistance!