We offer a diverse array of finned tubes, each meticulously crafted to ensure optimal performance: tension wound finned tubes, embedded finned tubes, and extruded finned tubes.
Tension wound finned tubes are ingeniously formed by wrapping a strip of premium aluminium or copper around the tube under tension, maximizing heat transfer. Our advanced strip winding technology enables the creation of various fin types to suit your needs: L-Fin, LL-Fin, and the innovative KL-Fin.
Embedded fins (G-Fins) are engineered by expertly winding an aluminium or copper strip into a precision-cut helical groove on the tube's outer surface, ensuring seamless integration.
Tension wound, embedded, and extruded finned tubes are the cornerstone of air cooler efficiency, with widespread applications in:
Cutting-edge heat exchangers for power plants spanning electric, nuclear, thermal, and geothermal domains.
Efficient steam condensate systems that optimize energy usage.
The demanding chemical and petrochemical industry.
Advanced food processing plants and state-of-the-art refrigeration technology.
Robust industrial applications, including steel mills, incinerators, and gas compression facilities.

L-Foot Finned Tube
This highly efficient yet cost-effective L-footed finned tubing ensures unparalleled heat transfer at lower temperatures, blending performance with economy. The distinctive L-shaped design maintains fin rigidity, expertly withstanding heat cycling and high-velocity air vibrations.
The L-Foot Finned Tube is available in various innovative fin variations:
Knurled Fin - This fin type uses mechanical knurling to establish a robust interference fit between the fin material and the tube wall surface.
LL Fin - Double Overlap fin design ensures comprehensive coverage with double-strip thickness across the entire base tube.
Perforated L Fin - Enhanced fin face with 'tear drop' slits around the helix, disrupting airflow for improved performance.
L-Foot Fin / Wrap-On Fin
L-Foot Tension Wound Finned Tubes also known as Wrap-On Finned Tubes, are ideal for applications with temperatures up to 300 degrees Fahrenheit, providing essential tube wall protection. These tubes feature a thin aluminium fin strip helically wound around the tube circumference with precision and care. A 'foot' is first crafted on one side of the fin strip, giving rise to the moniker L-Foot. Subsequently, the strip is tightly wound around the tube, with the foot firmly seated on the tube's outer surface. The short horizontal limb of each L ensures complete coverage of the base-tube surface. Tension in the fin strip as it envelops the tube ensures the fin foot's secure seating and firm retention. L-footed finned tubing excels in maximizing heat transfer at lower temperatures. The unique L-shaped design steadfastly holds fins, combatting heat cycling and high air velocity vibrations. This design offers a degree of atmospheric protection for the tube wall, shielding it against corrosion. The extensive contact area between the tube and finning significantly boosts heat transfer efficiency. This innovative fin design is both highly efficient and cost-effective.
Fins are securely stapled at their ends to prevent unravelling, ensuring consistent contact between the fin foot and the tube. This contact is essential to the performance of the air cooler, as it facilitates the seamless transfer of heat from the tube wall, through the fin, and into the ambient air.
Advantages:
Perfectly engineered for low-temperature applications
This finning type stands out as the most economically feasible option compared to its alternatives.
Any failed fins can be effortlessly removed during production, allowing for the bare tube to be reused for finning.
No helical groove is required on the core tube, simplifying the process.
Fins can be applied to an ultra-thin walled tube, especially beneficial when expensive alloys are used as a core tube, maximizing resource efficiency.
The tube is engineered to endure temperatures up to 130°C, withstanding atmospheric corrosion and thermal stress.
Application:
Oil and gas refineries
Petroleum, chemical, and petrochemical industries
Natural gas processing
Steel manufacturing industry
Power generation plants
Air conditioning systems
Compressor coolers
KL Footed Fin / Knurled L Footed Fin
The innovative KL fin is also referred to as the knurled L fin, renowned for its unique features. This finned tube closely resembles the Wrap-On fin, crafted using both Wrap-On and Embedded techniques for optimal efficiency. Fins are meticulously crafted from strips prepared into an L shape akin to the L type, then transformed into a tapered curl. Subsequently, it is helically wound onto the tube in a continuous, tension-filled loop. The tube is securely embraced by the fin for enhanced stability. A spinning tool intricately knurls the base tube, embedding the fin's foot into the knurling, achieving a robust bond and maximizing thermal efficiency.
Proper fin strip utilization ensures that the foot of each fin meets the next, leaving no gaps and enhancing structural integrity. This design fortifies the tube against corrosion, extending its lifespan. Similar to L fins, these fins are anchored at both ends to prevent unwinding, ensuring durability. In metal applications, KL -Foot tension wound finned tubes are predominantly utilized for their superior capabilities. Operates at a maximum temperature of up to 320°C (608°F) for consistent performance.
Advantages:
Tubes with outstanding corrosion resistance
Built-in vibration resistance for enhanced durability
Capable of withstanding temperatures as high as 320°C (608°F) for extensive applications.
High thermal efficiency coupled with stress resistance and protection from air corrosion make this an unparalleled solution.
KL fins can supplant any existing finned tube, offering versatile adaptability.
LL-Foot Fin / Overlapped L
Fins are produced from strips in a manner similar to the L type, with the foot intricately crafted into a nuanced stepped double L shape, then rolled into a taper to allow curling. The LL-Foot Fin - Overlapped L is then helically coiled onto the tube under tension, ensuring a precise fit. The fin grips the tube, with one fin smoothly overlapping the foot of the next, providing full coverage of the base tube. This design offers substantial corrosion protection for the tube, ensuring longevity. In corrosive environments, this tube type is commonly utilized as an economical alternative to the more expensive extruded type fin solutions.
Fins are meticulously secured at each end, employing the same robust method used for L fins to ensure unparalleled stability and durability. The LL-type fin tube seamlessly withstands operational temperatures of up to a remarkable 350 degrees Fahrenheit (177°C), demonstrating its exceptional heat resistance and reliability.
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
Cangzhou Datang Steel Pipe Co., Ltd. proudly presents a versatile range of applications for our G Type Fin Tube with Embedded Finned Tube, providing optimized cooling solutions for an extensive array of systems. From aftercoolers and air coolers to air heaters and charge air chillers, our product guarantees premium performance. Whether it's condensers, convection heaters, or electric heaters, expect efficient heat management. Ideal for evaporators, fluid coolers, and gas coolers, it's a perfect match for diverse settings including heat pipes, hydrogen coolers, and industrial tumble dryers. Our G Type Fin Tube is a reliable choice for intercoolers, immersion heaters, oil coolers, radiators, refrigeration systems, solvent recovery, and steam to air heat exchangers, ensuring your systems operate at peak efficiency..







DATANG STEEL PIPE Co., Ltd stands proud as a distinguished processor and wholesaler, with a prestigious legacy of exporting to global markets for the past 17 years.
Explore an extensive array of high-performance Finned tubes, Fin tube heat exchangers, Air coolers, Radiators, Economizers, and Condensers,as well as Vaporizers/Evaporators, all available at Datang.
Our vast inventory boasts premium quality carbon steel seamless pipes,alongside ERW pipes, SSAW pipes, and alloy steel pipes. We also provide a comprehensive selection of pipe fittings and flanges.
We warmly invite you to tour our factory and are eager to embark on a fruitful partnership with you.

DATANG STEEL PIPE Co., Ltd is a renowned manufacturer and wholesaler with a commendable 17-year history of exporting to global markets.
Our professional sales and technical teams are at the forefront, ready to design tailored solutions and offer product customization to meet your needs.
Discover a wide array of Finned tubes available at Datang, crafted for excellence.
Our state-of-the-art production facilities include the following:
'G' Type Fin Tube (Embedded Finned Tube), 'L', 'LL', 'KL' Type Fin Tube (Wrap Around Finned Tube) with six production lines,
High Frequency Welded Fin Tube (including Serrated Finned Tube) with eight production lines,
Laser Welding Finned Tube with a dedicated production line,
Extruded Finned Tube (Bimetallic Fin Tube & Integral Monometallic Low Fin Tube) with six production lines,
We also specialize in customizing Fin tube heat exchangers, Air coolers, Radiators, Economizers, and Condensers, along with Vaporizers/Evaporators, crafted to perfection.
Our expansive inventory includes premium grade carbon steel seamless pipes, as well as ERW pipes, SSAW pipes, and alloy steel pipes, essential for fin tube manufacturing.
Additionally, we offer an extensive range of pipe fittings and flanges.
We warmly welcome you to visit our factory and look forward to establishing a successful collaboration with you.
Customer Tour&Cooperation




Frequently Asked Questions
Q1: Are you a factory or a trading company?
A1: We are both a factory and a subsidiary international trading company dedicated to exports.
Q2: What products and services do you offer?
A2: As a leading professional manufacturer, we specialize in Radiator and Heat Exchanger Equipment along with various Fin Tubes.
Q3: Where is your factory located?
A3: Our state-of-the-art facility is situated in Cangzhou City, Hebei Province, China, fully equipped with advanced machinery.
Q4: How do you ensure the quality of your products?
A4: We provide an Inspection & Guarantee Certificate with every shipment, and Third Party Inspection services are also available for added assurance.
Q5: What sets your company apart from others?
A5: Our company boasts a team of skilled professionals, offers more competitive pricing, and provides superior after-sales service compared to our competitors.
Q6: Can you handle the shipment process?
A6: Absolutely, we can arrange shipment for you. We collaborate with reliable forwarders who have been our partners for many years.
Q7: What is the expected delivery time?
A7: Delivery schedules vary per order, but you can expect your items within 30 days after we receive your advance payment.
Q8: Are samples available for testing?
A8: Yes, we offer small samples from our inventory at no cost to you.
Reach out to me today for more detailed information!