At Cangzhou Datang Steel Pipe Co., Ltd., we proudly offer an exceptional range of finned tubes, including tension wound finned tubes, embedded finned tubes, and extruded finned tubes - each meticulously crafted to meet diverse industrial needs with unparalleled precision.
Our tension wound finned tubes are ingeniously crafted by expertly winding a robust strip, made of premium aluminium or copper, around the tube under consistent tension, ensuring superior performance and reliability. Our advanced strip winding technology offers an array of fin types, including L-Fin, LL-Fin, and KL-Fin, providing versatile solutions for various thermal applications.
Embedded fins (G-Fins) are meticulously manufactured by winding a high-quality aluminium or copper strip into a precision-engineered helical groove, expertly machined on the tube's outer surface, ensuring exceptional durability and performance.
Our tension wound finned tubes, embedded finned tubes, and extruded finned tubes serve as critical components for air coolers, widely utilized across various sectors, including:
Heat exchangers for power plants: catering to electric, nuclear, thermal, and geothermal power plants.
Steam condensate systems: designed for efficiency and reliability.
Chemical and petrochemical industry: ensuring optimal thermal management and process efficiency.
Food processing plants and refrigeration technology: enhancing operational effectiveness and consistency.
Industrial applications including steel mills, incinerators, and gas compression facilities: robust and reliable solutions for demanding environments.

L-Foot Finned Tube
Our L-footed finned tubing is a highly efficient yet cost-effective solution, delivering maximum heat transfer at lower temperatures, ideal for diverse industrial applications. The distinct L-shaped design ensures fins remain rigidly attached, capable of withstanding intensive heat cycling and high-velocity air vibrations.
The versatile L-Foot Finned Tube is available in the following innovative fin variations:
Knurled Fin - This fin type boasts an interference fit, showcasing mechanical knurling that securely fastens the fin material to the tube wall surface, enhancing durability.
LL Fin - Features a Double Overlap fin design, the double LL, providing comprehensive double strip thickness coverage across the entire base tube for enhanced thermal efficiency.
Perforated L Fin - This innovative design introduces 'tear drop' slits along the helix, strategically disrupting airflow for improved heat dissipation.
L-Foot Fin / Wrap-On Fin
L-Foot Tension Wound Finned Tubes also known as Wrap-On Finned Tubes, are expertly utilized in applications where temperatures remain below approximately 300 degrees Fahrenheit, providing essential tube wall protection. Our L-Foot tension wound finned tubes feature a thin yet resilient aluminium fin strip, meticulously wound helically around the tube's circumference for optimum performance. The fin strip begins with the formation of a 'foot' on one side, which is pivotal to the L-Foot's distinctive name. Subsequently, the strip is tightly wound around the tube, ensuring the 'foot' firmly contacts the outer surface, providing stability and efficiency. Each L's short horizontal limb maintains complete contact with the base-tube surface, ensuring comprehensive coverage and protection. The tension applied to the fin strip during wrapping ensures the fin foot is seated securely, maintaining its position under operational conditions. L-footed finned tubing offers maximum heat transfer at lower temperatures, ideal for a variety of industrial applications. The unique L-shaped design ensures fins are held rigid, effectively resisting heat cycling and high-velocity air vibrations. This fin design not only enhances heat transfer but also provides atmospheric protection against tube wall corrosion. The enhanced contact surface between the tube and the finning significantly boosts heat transfer efficiency. This innovative fin design is both highly efficient and cost-effective, ensuring value and performance.
To prevent unraveling and safeguard the integrity of the fin foot's contact with the tube, the fin ends are meticulously stapled, ensuring long-term durability and performance. This contact is absolutely essential to the seamless operation of the air cooler, as it is the vital conduit through which heat gracefully transitions from the robust tube wall, passes through the efficient fin, and finally dissipates into the surrounding ambient air, ensuring optimal thermal regulation.
Advantages:
Perfectly engineered for low-temperature applications, offering unparalleled efficiency in demanding environments.
This finning type triumphs as the most cost-effective solution available when compared to other methods, delivering exceptional value.
Failed fins are effortlessly removable during production, allowing the bare tube to be efficiently reused for finning, enhancing both sustainability and cost-effectiveness.
Eliminates the need for creating a helical groove over the core tube, streamlining the manufacturing process.
Enables the placement of fins on thin-walled tubes, which is especially advantageous when employing costly alloys as the core tube, optimizing resource utilization.
The tube is resilient to temperatures soaring up to 130°C, confidently withstanding atmospheric corrosion and thermal stress, ensuring durability.
Application:
Oil and gas refineries, where efficiency and reliability are paramount.
Ideal for petroleum, chemical, and petrochemical industries, providing robust performance under challenging conditions.
Essential for natural gas treatment applications, delivering superior heat transfer capabilities.
A crucial component within the steel-making industry, enhancing process efficiency.
Widely utilized in power plants, contributing to effective thermal management.
Key in air conditioning systems, ensuring optimal temperature control and energy efficiency.
Integral to compressor coolers, boosting performance and longevity.
KL Footed Fin / Knurled L Footed Fin
The KL fin is also referred to as the knurled L fin, offering distinctive advantages. This finned tube is remarkably similar to the Wrap-On fin, meticulously crafted using both Wrap-On and Embedded techniques, ensuring exceptional performance. The fins originate from strips artfully prepared into an L shape, akin to the classic L type, then rolled into a taper to create a curl. These are then helically wound onto the tube in a flawless continuous loop under precise tension. The fin embraces the tube with a snug fit, enhancing stability and thermal efficiency. A spinning tool expertly knurls the base tube, and the foot of the fin is seamlessly integrated into this knurling, producing a robust bond and significantly improved thermal performance.
When utilizing the optimal fin strip, the foot of one fin elegantly meets the next, leaving no gaps, thus maximizing protection. This meticulous design provides extensive protection for the tube from corrosion, ensuring longevity. Similar to L fins, the attachment of fins at each end prevents any risk of unwinding, securing the system's integrity. KL-Foot tension-wound finned tubes are predominantly employed in metal-related applications, offering unmatched reliability. Capable of withstanding up to 320°C (608°F) maximum operating temperatures, showcasing impressive resilience.
Advantages:
Tubes are crafted to be corrosion-resistant, ensuring prolonged service life.
Engineered for vibration resistance, maintaining stability under dynamic conditions.
Endures temperatures soaring up to 320°C (608°F), perfect for high-heat applications.
Combines high thermal performance and stress resistance with exceptional protection from air corrosion, creating an unmatched synergy.
KL fins can seamlessly replace any form of finned tube, offering versatility and adaptability.
LL-Foot Fin / Overlapped L
Fins are crafted from strips in a similar fashion to the L type, but with a precisely controlled stepped double L shape, taper-rolled to enable curling. The LL-Foot Fin - Overlapped L is meticulously helically coiled onto a tube under optimal tension for maximum effectiveness. The fin steadfastly adheres to the tube, with one fin elegantly overhanging the next, ensuring complete base tube coverage and protection. This configuration provides outstanding tube protection from corrosion, optimizing longevity. In corrosive environments, this tube form is often chosen as an economical alternative to the pricier extruded type fin, providing cost-effective resilience.
Our innovative G Type Embedded Finned Tube features fins that are meticulously secured at each end, adhering to the same reliable methodology as L fins, ensuring robust and long-lasting performance. The advanced LL-type fin tube is expertly engineered to withstand rigorous conditions, maintaining optimal functionality at temperatures soaring up to an impressive 350 degrees Fahrenheit (177C degree).
Technical Specifications
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 |
Versatile Applications
Our High-Quality G Type Embedded Finned Tube is the ideal choice for a diverse range of applications. It excels in enhancing efficiency and performance in 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 units, and steam to air heat exchangers.---







DATANG STEEL PIPE Co., Ltd has proudly extended its reach to global markets as a distinguished processor and wholesaler for an impressive 17 years.
Discover an extensive and diverse selection of cutting-edge Finned tubes, Fin tube heat exchangers, Air coolers, Radiators, Economizers, and Condensers,as well as Vaporizers/Evaporators, all expertly crafted by Datang.
Our expansive inventory boasts high-quality carbon steel seamless pipes available in large quantities,along with ERW pipes, SSAW pipes, alloy steel pipes, and more. Comprehensive pipe fittings and durable flanges are also at your disposal.
We warmly invite you to visit our state-of-the-art factory and eagerly anticipate a fruitful collaboration with you.

DATANG STEEL PIPE Co., Ltd excels as a renowned manufacturer and wholesaler, exporting to global markets with a legacy of excellence spanning 17 years.
Our dedicated professional sales and technical teams are committed to designing tailored solutions and offering product customization to meet your specific needs.
Explore a comprehensive array of Finned tubes available at Datang, perfect for various applications.
We are equipped with a range of advanced production facilities, which include:
'G' Type Fin Tube (Embedded Finned Tube), 'L', 'LL', 'KL' Type Fin Tube (Wrap Around Finned Tube) with a 6-line capacity.
Our High Frequency Welded Fin Tubes, including Serrated Finned Tubes, are manufactured on an 8-line system.
Precision is ensured with our Laser Welding Finned Tubes, crafted on a dedicated 1-line setup.
The Extruded Finned Tubes, featuring both Bimetallic and Integral Monometallic Low Fin Tubes, are produced on a 6-line facility.
In addition, we specialize in the customization of Fin tube heat exchangers, Air coolers, Radiators, Economizers, and Condensers, alongside high-performance Vaporizers/Evaporators to meet diverse industrial needs.
We maintain a vast inventory of top-tier carbon steel seamless pipes, accompanied by ERW, SSAW pipes, and alloy steel pipes, all essential for the meticulous manufacture of fin tubes.
Our range also includes an array of pipe fittings and robust flanges, tailored for diverse requirements.
We extend a warm invitation to visit our cutting-edge factory and eagerly look forward to establishing a collaborative partnership with you.
Customer Tour&Cooperation




Frequently Asked Questions
Q1: Are you a factory or a trade company?
A1: Cangzhou Datang Steel Pipe Co., Ltd. is a fully integrated factory, complemented by a dedicated international trade subsidiary for seamless exports.
Q2: What can you provide?
A2: We proudly specialize in the manufacturing of top-tier Radiator and Heat Exchanger Equipment, alongside an extensive range of Fin Tubes, tailored for diverse applications.
Q3: Where is your factory located?
A3: Strategically situated in Cangzhou city, Hebei province, China, our factory is equipped with state-of-the-art machinery, ensuring superior production capabilities.
Q4: How do you ensure quality control?
A4: We guarantee quality with an Inspection & Guarantee Certificate accompanying each shipment, and Third Party Inspection services are readily available for absolute assurance.
Q5: What are the advantages of your company?
A5: Our company boasts a team of seasoned professionals, competitive pricing, and exceptional after-sales service, setting us apart from our competitors.
Q6: Can you arrange the shipment?
A6: Absolutely, we handle shipping logistics seamlessly, thanks to our long-standing partnerships with reliable forwarders.
Q7: What is your delivery time frame?
A7: Delivery timelines are order-dependent, typically within 30 days post receipt of your advance payment, ensuring timely fulfillment.
Q8: Can you provide samples?
A8: Yes, we offer complimentary small samples from our available stock for your evaluation.
Reach out to us today for more detailed information and personalized service!