Embedded Fin Tube | G Type Finned Tube Suppliers in China
Embedded Fin Tube also called G type finned tube.It is that the fin strip is tension wound and placed in the groove cut into the tube with appr,0.35-0.5mm groove depth,then the bottom of the fin is guided into the groove and backfilled with base tube Firmly, finally lock the fins in place by rolling the grooves enclosed in the bottom of the fins.In order to prevent the steel strip from rebounding and falling off,the two ends of the steel strip should be welded to the steel tube.
Delivery condition:
Tube ends are square cut, free burrs, internally dried and air blown clean, externally coated with varnish at both ends of G-Fin Embedded Finned Tube.
| Tube Material | Wall Thickness | Tube Diameter | Tube Length |
| All types | From 1.0 to 3.0 mm | 15.88 / 50.80 mm | Max. 18500 mm |
| 0.039 in to 0.118 in | 0.625 / 2 in | 728 in | |
| Fin Strip Material | Fin Strip Thickness | Fin Pitch | Production Capacity |
| Aluminum/Copper | From 0.4 to 0.5 mm | From 2.1 to 3.0 mm | 12000 m per day |
| From 0.015 to 0.019 in | From 8 to 11 fins/inch |
Embedded fin tubes feature fins (typically aluminum or copper) mechanically locked into grooves cut into the base tube, providing superior durability, vibration resistance, and heat transfer performance for high-temperature applications such as air-cooled heat exchangers, boilers, and petrochemical processing. Unlike simpler fin designs, this robust metal-to-metal connection withstands continuous thermal cycling and high-temperature operation.
Embedded Fin Tube Manufacturing Process
A helical groove is machined into the outer surface of the base tube.
A fin strip (e.g., aluminum) is inserted into the groove.
Rollers compress the metal at the groove edges onto the base of the fin, creating a secure mechanical lock.
Main Advantages of Embedded Fin Tubes
High Temperature Resistance: Withstands temperatures up to 750°F (400°C) or higher, depending on the materials.
Excellent Heat Transfer Performance: The secure connection minimizes thermal resistance.
Vibration Resistance: Ideal for high-velocity airflow or vibrating applications.
Thermal Cycling Resistance: Withstands repeated heating and cooling cycles without fin loosening.
Common Applications of Embedded Fin Tubes
Industrial Heat Exchangers: Used in air-cooled units for power plants, refineries, and chemical plants.
Boilers and Condensers: Used for flue gas cooling and steam generation.
Natural Gas Processing and Steel Industry: Used for thermal management.
Quality Control for Embedded Fin Tube | G Type Finned Tube
The quality of the G type finned tube(embedded fin tube) is assured by hydrostatic or pneumatic testing, eddy current testing and tensile testing to verify the mechanical bond between the inner tube and the outer fins.
Embedded Fin Tube | G Type Finned Tube Material
The base tube is made of carbon steel tube(SA179,A192,SA210 Gr A1/C,A106 GrB),the fins aluminum strips(Alu.1100,Alu.1060 ect..)
The base tube is made of alloy steel tube(SA213 T11),the fins aluminum strips(Alu.1100,Alu.1060 ect..)
The base tube is made of stainless steel tube(TP304,TP316,A789 S31803/S2205),the fins aluminum strips(Alu.1100,Alu.1060)
The base tube is made of stainless steel tube(TP304,TP316,A789 S31803/S2205),the fins copper strips.
The base tube is made of carbon steel tube(A179,A192,SA210 Gr A1/C,A106 GrB),the fins aluminum strips(Alu.1100,Alu.1060 ect..)
The base tube is made of carbon steel tube(A179,A192,SA210 Gr A1/C,A106 GrB),the fins copper strips.
Grooved fin tube or ‘g’ finned tubes (embedded fin tube) offer a temperature resistance of up to 400°C.
Fin tube support collar suitable for aluminum finned tube, extruded finned tube and L/ll / KL finned tube, and ismost commonly used in G-type finned tube.
Embedded Fin Tube | G Type Finned Tube By Industy
Datang offers the widest variety of sizes available for embedded fin tube in the industry.Embedded fin tubes are widely used in many fields. In the chemical industry,they are used for heating and cooling of various reactors; in the power industry,g type finned tubes are often used as condensers for boilers and steam turbines; in the construction field,embedded fin tubes are widely used in air conditioning and heating systems to provide a comfortable temperature environment indoors.In addition,G type fin tubes also play an important role in metallurgy,machinery,food and other industries.
Features of Our Embedded Fin Tube | G Type Finned Tube
1. High heat transfer performance and low contact thermal resistance.
2. Large contact area between fins and tubes, tight and reliable fit.
3. Good resistance to atmospheric corrosion, stable for long-term use.
4. Can be used under high temperature for a long time.
Customizable Embedded Fin Tube | G Type Finned Tube
We can customize the material, specification and length according to your requirements.Solve your problems anytime and anywhere. Customize fin tubes and equipment according to your needs. Provide free technical guidance. Welcome to customize with drawings, so that you can purchase without worries.
Pipe Hoop for L LL KL G Type Embedded Finned Tube
The isolation ring is suitable for aluminum finned tube, extruded finned tube and L/ll / KL finned tube, and ismost commonly used in G-based finned tube.
Shape: Available in different shapes such as round, hexagonal, and octagonal to meet specific application needs.
Embedded aluminum finned tube circular spacer box.
The general flexible core tube of finned tube: the outerdiameteris 25.4mm，31.75mm and 38.1mmrespectively
Fin tube collars can be placed at any point along the tube length as per customer requirements, including sections without fins (mid-bare sections) for custom support placements.
What is the Difference Between Embedded Fin Tubes and Wound Fin Tubes?
Embedded fin tubes are pre-processed with embedded grooves on steel tubes, and then the fins are embedded in these grooves and fixed by welding or other means. The advantages are efficient heat exchange, compact structure, strong corrosion resistance and low pressure loss. The disadvantages are relatively complex manufacturing process and high production cost.
Wound fin tubes are made by winding fins on steel tubes. The advantages are simple manufacturing process, short production cycle and low cost. The disadvantages are short service life and low heat transfer efficiency.
Embedded finned tube main characteristic
1. Embedded finned tube Max. Working Temperature: 400 °C
2. Embedded finned tube Atmospheric Corrosion Resistance: OK
3. Embedded finned tube Mechanical Resistance: Poor
4. Fin and bare tubes connect tight than normal tension wound on edge fin type
Embedded Fin Tube | G Type Finned Tube Package
Payment Terms:T/T, LC
Delivery: 15-30 days after payment
Marking: Standard + Steel Grade + Size + Heat No + Lot No
Package: Iron frame packing boxes and the desiccants are put into each package for continental transportation as well. or as required
Embedded Fin Tube | G Type Finned Tube Quality Checks
Each of our G type finned tube,embedded fin tube is subjected to stringent quality checks.Inspection and Tests Performed:
1.Chemical Composition inspection。
2.Mechanical Properties Test(Tensile Strength, Yield Strength, Elongation, Flaring, Flattening, Hardness, Impact Test).
3.Surface and Dimension Test.
4.No-destructive Test.
5.Hydrostatic Test.
Embedded Fin Tube | G Type Finned Tube Application
The basic heat transfer element of the embedded fin tube for heat exchanger is the embedded finned tube. By adding fins outside the tube, the heat transfer area is greatly increased.
The main advantages of G type finned tube embedded fin air cooled heat exchanger include high efficiency, corrosion resistance, low noise, energy saving and environmental protection.
Embedded fin tube economizer can effectively recover waste heat in flue gas, reduce exhaust gas temperature, improve boiler efficiency, reduce energy waste and reduce operating costs.
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Embedded Fin Tube | G Type Finned Tube FAQs
A: G type finned tube(embedded fin tube) production line 12.
A: We can provide embedded fin tube samples for free.
A: After you confirm G type fin tube sample details, the samples will be ready for delivery in 3-7days,and will be sent to you via express and arrive in 3-5days.
A: G type fin tube can be customized, we can make the new thermoforming or extruding mode based on your drawings and we can sign a confidentiality agreement about your patented product, pls contact us for any further information.
A: Always a pre-production sample,before mass production;always final inspection before shipment.
Inspection & Guarantee Certificate is supplied with shipment, and the Third Party Inspection is available.