Pin Fin Tube, Studded Finned Tube
The pin fin tube is an enhanced heat exchange element developed by Datang finned tube company. The pin tube is equally welded on the surface of the steel pipe by the pin tube automatic welding machine. Pin finned tube is widely used in various stationary and marine boilers and high-viscosity oil products (such as crude oil, heavy oil, etc.) heat transfer places.
- Material of base pipe:Carbon steel, Alloy steel and Stainless
Type of base pipe:Seamless steel pipe
OD of Base pipes:≥38mm
Base pipe thickness:≥3mm - Material of pins:Carbon steel, Alloy steel and Stainless
Type of fins:Pin fin Type
Height of pins:≥12mm
OD of pins:6.0mm
Pitch of pins:≥11mm
What is pin fin tube?
Pin Fin Tube is a type of enhanced heat transfer element. The pin tube uses an automatic welding machine to uniformly weld pin-shaped fins onto the surface of a steel pipe. Pin fin tube is a type of heat exchanger tube, its surface features numerous small protrusions (called “pin fins”). These pins increasethe surface area of the tube, which in turn enhances its heat transfer capabilities. The pins are typically arranged in a regular pattern, which can be either straight or helical.
Pin fin tubes are commonly used in various industrial applications, such as refrigeration and air conditioning systems, power generation equipment, and chemical processing plants. They are particularly effective in applications that involve the transfer of heat between fluids with a large temperature difference.
The performance of pin fin tubes can be improved by increasing the number of pins, reducing the pin diameter, and optimizing the pin spacing. However, these modifications can also increase the manufacturing costs of the tube.
Properties of Studded Fin Tubes / Studded Fin Pipe :
Manufacturing Process :- Electric Resistance Welding
Fin To Tube Bond :- Excellent
Heat Transfer Efficiency :- Excellent
Mechanical Resistance: – Excellent (Hence can be frequently cleaned with high pressure jets unlike other fin tubes. Thereby reducing down time and increasing overall life)
Corrosion Protection: – Gives excellent corrosion protection to the base tube since it entirely covers the base tube (except bare ends).
Temperature Range :- Depending on Properties of material of Fin(Stud ) and Pipe
The use of pin fin tubes offers several advantages in heat transfer applications:
1.Increased Surface Area: The pins on the tube surface significantly increase the surface area, making heat transfer between fluids more efficient.
2.Enhanced Heat Transfer: The increased surface area also leads to a higher heat transfer coefficient, meaning pin fin tubes can transfer heat more effectively than plain tubes.
3.Improved Fluid Mixing: The pins on the tube surface can induce fluid turbulence, thereby enhancing fluid mixing and further improving heat transfer.
4.Compact Design: Pin fin tubes can provide a high heat transfer rate in a compact design, which is advantageous in space-limited applications.
5.Reduced Fouling: The presence of pins on the tube surface can prevent the accumulation of debris and deposits, thereby reducing fouling.
6.Improved Durability: The pins on the tube surface can also enhance the mechanical strength and durability of the tube, making it more resistant to damage and corrosion.
Overall, pin fin tubes are an effective and efficient heat transfer solution that offers several advantages over traditional plain tubes.
Great for oil and gas plants, chemical and petrochemical plants, power generation plants and refineries, Datang finned tube supplys an extensive range of U/S/Finned tubes, guaranteed to match your industrial needs.
The Stud Fin Tubes / Stud Fin Pipes can be supplied with EN 10204 EN 3.1 and EN 3.2 certifications . We can provide Third Party Inspection from any reputed inspection agency.
Material of base pipe:Alloy A335 P9
Type of base pipe:Seamless steel pipe
OD of Base pipes and wall thickness:6″ SCH 40 (168.3 × 7.11 mm)
Base pipe length:11,410 mm
Material of pins:Carbon Steel
Type of fins:Pin fin Type
Height of pins:25 mm
OD of pins:Ø12.5
Pitch of pins:1375 pcs/m
- Datasheet
- Drawing
- Certificates
Pin fin tube typical material and size:
| Sr.No | Particulars | Range |
|---|---|---|
| 1 | Base Tube Material | Stainless Steel, Carbon Steel, Alloy Steel, Titanium, Copper, Duplex Stainless Steel, Inconel, etc. (all materials within theoretical limits) |
| 2 | Base Tube Outside Diameter | ≥38mm |
| 3 | Base Tube Thickness | Above 3 mm to 12.70 mm |
| 4 | Base Tube Length | 2000 mm Min to 15000 mm |
| 5 | Stud Material | Carbon Steel / Stainless Steel / Alloy Steel |
| 6 | Stud Thickness | 6 mm to 16 mm |
| 7 | Stud Density | 15.88 mm or 63 Studs Per Plane Per Meter (Can be customized to client requirements) |
| 8 | Stud Height | 12.7 mm to 63.5 mm |
| 9 | Bare Ends | As per Client Requirement |


Pin Fin Tube Appearance Dimension Inspection
Pin finned tube appearance dimension inspection is one of the important links to ensure the quality and performance of fin tubes.
The inspection items mainly include fin height, fin spacing, fin thickness, base tube wall thickness and outer diameter, etc.
Studded Pin Fin Tube Manufacturing Machine
The stud tube manufacturing equipment is a specialized device used for welding studs onto the surface of heat transfer tubes. Its core function is to create a dense structure of studs on the tube surface through resistance welding, thereby increasing the heat transfer area and enhancing the heat transfer effect on the flue gas side.

Studded Pin Fin Tubes 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


















