Discover our diverse selection of finned tubes expertly crafted to meet varied needs, including tension wound finned tubes, embedded finned tubes, and extruded finned tubes. Each type offers unique benefits tailored to elevate performance in your specific applications.
Our tension wound finned tubes are meticulously crafted by securely winding a strip, composed of premium aluminium or copper, around the tube under precise tension. This method enhances durability and ensures exceptional thermal efficiency. The advanced strip winding technology we employ enables the creation of various fin types, each engineered for specific applications: L-Fin, LL-Fin, and KL-Fin, delivering optimized performance.
Embedded fins, also known as G-Fins, are skillfully crafted by winding a durable aluminium or copper strip into a precisely machined helical groove on the tube's outer surface, offering enhanced thermal performance.
These finned tubes serve as critical components for air coolers, finding indispensable applications in industries such as:
Heat exchangers utilized in power plants across the spectrum, including electric, nuclear, thermal, and geothermal power facilities.
Streamlined steam condensate systems.
Chemical and petrochemical industry, where efficiency and reliability are paramount.
Food processing plants and cutting-edge refrigeration technology, ensuring optimal performance.
Industrial applications, spanning steel mills, incinerators, and gas compression facilities, to name a few.

L-Foot Finned Tube
L-Footed finned tubing stands out for its impressive efficiency and cost-effectiveness, maximizing heat transfer even at reduced temperatures. The ingenious L-shaped architecture ensures fins remain steadfast, enduring heat cycling and resisting high-velocity air vibrations with remarkable stability.
The L-Foot Finned Tube can be customized with the following innovative fin variations:
Knurled Fin - A finely tuned fin variant featuring an interference fit with mechanical knurling to enhance the bond between the fin material and the tube wall surface.
LL Fin - Double Overlap fin (The double LL) provides extensive double strip thickness coverage, enveloping the entire base tube.
Perforated L Fin - This subtle enhancement to the fin face, characterized by 'tear drop' slits along the helix, disrupts airflow for improved efficiency.
L-Foot Fin / Wrap-On Fin
L-Foot Tension Wound Finned Tubes also known as Wrap-On Finned Tubes, are ideal for low-temperature applications up to 300 degrees Fahrenheit, providing necessary tube wall protection. Our L-Foot tension wound finned tubes feature a thin aluminium fin strip, meticulously wound in a helical pattern around the tube's circumference, ensuring optimal thermal conduction. A 'foot' is strategically formed on one side of the fin strip, giving rise to the L-Foot nomenclature. This strip is then tightly wound around the tube, with the foot exerting pressure on the tube's outer surface. The short horizontal limb of each L-Foot makes full contact with the base-tube surface, ensuring complete coverage. Tension within the fin strip during wrapping ensures that the fin foot is firmly seated on the tube, maintaining robust attachment and integrity. L-footed finned tubing provides superior heat transfer capabilities even at lower temperatures, promoting energy efficiency. The unique L-shaped configuration ensures that fins remain securely in place, enduring both heat cycling and high-velocity air vibrations with ease. This exceptional fin design offers a level of atmospheric protection for the tube wall against corrosion, enhancing longevity. The extensive contact surface between the tube and fin significantly boosts heat transfer performance. This fin design boasts high efficiency while remaining cost-effective, delivering unparalleled value.
To maintain the integrity of the contact between the fin foot and the tube, the ends of the fins are stapled, preventing the aluminium fin from unwinding. This contact is absolutely vital to the efficient operation of the air cooler, as it ensures seamless heat transfer from the tube wall, through the finely engineered fins, to the ambient air surrounding it.
Advantages:
Perfectly suited for low-temperature applications, ensuring optimal performance in cooler climates.
Our finning type stands as the most cost-effective method available, offering unmatched value compared to other alternatives.
Should fins fail, they can be effortlessly removed during production, allowing the bare tube to be reused for finning, maximizing resource efficiency.
There's no need to create a helical groove over the core tube, simplifying the manufacturing process.
Fins can be placed on extremely thin-walled tubes, especially desirable when using costly alloys as the core tube.
Remarkably, the tube can withstand temperatures up to 130°C, confidently resisting atmospheric corrosion and thermal stress.
Application:
Oil and gas refineries, ensuring reliable cooling in demanding environments.
Petroleum, chemical, and petrochemical industries, supporting efficient operations.
Natural gas treatment processes, providing robust thermal solutions.
Steel making industry, enhancing cooling efficiency in high-temperature operations.
Power plants, contributing to effective heat management.
Air conditioning systems, improving energy efficiency and cooling performance.
Compressor coolers, enhancing the lifespan and efficiency of compressors.
KL Footed Fin / Knurled L Footed Fin
The KL fin is also affectionately known as the knurled L fin, renowned for its reliable performance. This finned tube mirrors the Wrap-On fin and is crafted using both Wrap-On and Embedded techniques for superior performance. The fins are meticulously fashioned from strips prepared into an L shape, comparable to the L type, then rolled into a taper to allow curling. These are then helically wound onto the tube in a continuous loop under tension, ensuring a secure fit. The tube is snugly embraced by the fin, offering a consistent thermal interface. A spinning tool skillfully knurls the base tube, after which the fin's foot is intricately knurled into the base tube's knurling, forging a firm bond and enhancing thermal efficiency.
With the correct fin strip, each fin aligns perfectly with the next, leaving no gaps, thus optimizing thermal performance. This design not only boosts thermal efficiency but also protects the tube from corrosion. Similarly to L fins, the ends of the fins are secured to prevent unwinding, ensuring long-term reliability. In metal-involved applications, KL-Foot tension wound finned tubes are the go-to choice, offering outstanding performance. Capable of withstanding temperatures up to 320°C (608°F), these tubes provide exceptional thermal resilience.
Advantages:
Corrosion-resistant Tubes, ensuring longevity and durability in harsh environments.
Vibration resistance, maintaining integrity and performance under dynamic conditions.
Engineered to endure temperatures up to 320°C (608°F), meeting the demands of challenging applications.
Combining high thermal performance and stress resistance with air corrosion protection, this product delivers a unique advantage.
KL finned tubes can replace any form of finned tube, ensuring versatile application and superior performance.
LL-Foot Fin / Overlapped L
The fins are skillfully crafted from strips in a process similar to the L type, but the foot is formed into a carefully controlled stepped double L shape, then rolled into a taper for optimal curling. The LL-Foot Fin - Overlapped L is expertly helically coiled onto a tube under tension, ensuring a secure fit. The fin clings tightly to the tube, with one fin overhanging the next's foot, ensuring complete coverage and protection. This comprehensive coverage effectively shields the tube from corrosion, enhancing its longevity and reliability. In environments where corrosive elements are present, the innovative G Type Fin Tube with Embedded Finned Tube stands out as a highly effective and economical substitute for the traditionally more costly extruded type fin tubes.
Ingeniously designed, the fins are meticulously secured at both ends, mirroring the reliable method used for L fins, ensuring durability and stability. Engineered for resilience, the LL-type fin tube is adeptly crafted to endure temperatures reaching a remarkable 350 degrees Fahrenheit (177°C), making it an excellent 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 |
Application
Our G Type Fin Tube with Embedded Finned Tube is expertly utilized across a diverse array of applications, including: 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 units, solvent recovery systems, and steam-to-air heat exchangers, showcasing its versatility and efficiency..







DATANG STEEL PIPE Co., Ltd stands as a distinguished processor and wholesaler, proudly exporting our premium products to global markets for an impressive 17 years. Our commitment to quality and service has earned us a reputable position in the industry.
Explore our extensive range, which includes Finned tubes, Fin tube heat exchangers, Air coolers, Radiators, Economizers, and Condensers, each crafted with precision and designed for optimal performance.Discover unparalleled vaporizing and evaporating solutions at Datang, where innovation meets efficiency.
Our vast spot inventory includes high-quality carbon steel seamless pipes, ensuring you have access to the best materials available at all times.We offer an array of products including ERW pipes, SSAW pipes, alloy steel pipes, in addition to pipe fittings and flanges, all crafted to meet your diverse needs.
We warmly welcome you to visit our state-of-the-art factory and look forward to the opportunity to collaborate and achieve great success together.

DATANG STEEL PIPE Co., Ltd is a renowned manufacturer and wholesaler, exporting superior quality products to global markets for a noteworthy 17 years, proving our dedication to excellence.
Our expert sales and technical teams are dedicated to designing customized solutions and product adaptations for your unique requirements, ensuring your satisfaction is our top priority.
Find an extensive variety of Finned tubes at Datang, tailored to meet all your specific needs with unmatched quality.
Our advanced production facilities are as follows, showcasing our wide array of capabilities and expertise:
'G' Type Fin Tube (Embedded Finned Tube), 'L', 'LL', 'KL' Type Fin Tube (Wrap Around Finned Tube) across 6 production lines.
High Frequency Welded Fin Tube, including Serrated Finned Tube, spanning 8 state-of-the-art production lines.
Cutting-edge Laser Welding Finned Tube technology, proficiently managed across a specialized production line.
Extruded Finned Tube, available as Bimetallic and Integral Monometallic Low Fin Tubes, expertly crafted over 6 production lines.
We specialize in customizing Fin tube heat exchangers, Air coolers, Radiators, Economizers, and Condensers, engineered for supreme efficiency and reliability. Our expertise also extends to Vaporizer/evaporator solutions, providing you with comprehensive heating and cooling systems.
Our extensive spot inventory includes high-quality carbon steel seamless pipes, guaranteeing reliable supply and top-tier products. For the manufacturing of our fin tubes, we also supply ERW pipes, SSAW pipes, alloy steel pipes, ensuring all components meet high standards.
Complete your systems with our available pipe fittings and flanges, designed to ensure seamless integration and performance.
We invite you to visit our cutting-edge factory and are excited about the opportunity to collaborate and foster long-term partnerships.
Customer Tour&Cooperation




FAQ
Q1: Are you a factory or trade company?
A1: We are both a factory and a subsidiary international trade company dedicated to exports.
Q2: What can you provide?
A2: Our company specializes in the manufacturing of Radiator and Heat Exchanger Equipment, along with a diverse range of Fin Tubes.
Q3: Where is your factory?
A3: Our factory is strategically located in Cangzhou city, Hebei province, China, and is equipped with an extensive range of machinery.
Q4: How do you control quality?
A4: We provide an Inspection & Guarantee Certificate with each shipment, and Third Party Inspection services are also available.
Q5: What are the advantages of your company?
A5: Our company boasts a team of skilled professionals, offers competitive pricing, and provides exceptional after-sales service compared to other companies.
Q6: Can you arrange the shipment?
A6: Absolutely, we can assist with shipment arrangements, having long-established relationships with trusted forwarders.
Q7: How about the delivery time?
A7: Delivery times depend on the order size, typically occurring within 30 days following receipt of your advance payment.
Q8: Can you provide sample?
A8: Yes, we can offer small samples from our in-store selection at no cost.
Reach out to us today for further information and assistance!