Studded Tube Product Description:
Stud Fin Tube is made by electrical Resistance welding specially formed Studs(Round pins ) in rows around the tube. The Studs can be supplied in a variety of Sizes and shapes. Also named pin fin tube.Stud tube have a very high heat transfer efficiency.The heat exchange efficiency is equivalent to 2-3 times that of the bare pipe. To increase the surface heat transfer coefficient of flue gas to the furnace tube.Reduce the amount of bare pipes used in these processes. (Heat transfer surface of one studded pipe is equivalent to surface of 4 to 10 bare pipes).
Studded tubes are generally used in furnaces and boilers where the surface is exposed to a very corrosive environment and where very dirty gas streams require frequent or aggressive cleaning.
Increase efficiency in the process of heat recovery and direct flame hostile atmospheres.
Studded Tube(Stainless Steel Welded Tube) Manufacturing Process:
The steel studs are automatically resistance welded to the tube, producing high quality forge welds. The welding process enables the combination of any grades for studs and tube: carbon, low alloy, stainless steels and high nickel alloys.
Description
Product Name: Steel Fin Tube, Welded Fin Tube, Spiral Fin Tube, Longitudinal Fin Tube, Stud Fin Tube,H/HH type Fin Tube
• Base Pipe OD: 15.88-273mm
• Fin Height: 4.0-50mm
• Fin Thickness: 0.3 -2.0mm
• Number of Fins: 3~14 FPI
• Fin Pitch: 3mm-14mm
• End: Plain Ends, Beveled Ends
Base Tube Material
• Carbon Steel：ASTM A106 Gr B,ASME SA179/ASTM A179,ASME SA192/ASTM A192
• Stainless Steel：ASME SA213/ASTM A213 ；TP304/304L TP316/TP316L TP321 TP310S TP317
• Alloy Steel：ASME SA210/ASTM A210
Fin Material
• Carbon Steel：ASTM A53 GB/T5213-2019 08AL SPCC
• Stainless Steel: TP304/304L TP316/TP316L TP409
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Email:info@fintuberadiator.com
| Type | Description | Base tube | Base tube | Fin specification | |||||
| O.D. (mm) | O.D. (inch) | Fin pitch(mm) | Fin pitch(FPI) | Fin height(mm) | Fin height(inch) | Fin thick(mm) | Fin thick(inch) | ||
| Embedded | G Type Embedded/ Grooved Fin Tube | 14-51 | 0.5-2 | 2--6 | 3--14 FPI | 7--17 | 0.27--0.669 | 0.35--2 | 0.0137-0.0787 |
| L Type Embedded/Wrap Around Fin Tube | 10-51 | 0.4-2 | 2--6 | 3--14 FPI | 7--17 | 0.27--0.669 | 0.35--2 | 0.0137-0.0787 | |
| LL Type Embedded/Wrap Around Fin Tube | 10-51 | 0.4-2 | 2--6 | 3--14 FPI | 7--17 | 0.27--0.669 | 0.35--2 | 0.0137-0.0787 | |
| KL Type Embedded/Wrap Around Fin Tube | 10-51 | 0.4-2 | 2--6 | 3--14 FPI | 7--17 | 0.27--0.669 | 0.35--2 | 0.0137-0.0787 | |
| Extruded | Carbon base tube | 15.88--50.8 | 0.625--2 | 1.8-8 | 3--14 FPI | 5--16 | 0.2--0.63 | 0.3-1.2 | 0.012--0.047 |
| Stainless base tube | 15.88--50.8 | 0.625--2 | 1.8-8 | 3--14 FPI | 5--16 | 0.2--0.63 | 0.3-1.2 | 0.012--0.047 | |
| Copper base tube | 15.88--50.8 | 0.625--2 | 1.8-8 | 3--14 FPI | 5--16 | 0.2--0.63 | 0.3-1.2 | 0.012--0.047 | |
| Low Fin Tubes ( Integral Fin Tube ) | Carbon Steel, stainless steel, titanium, copper, brass, nickel alloy. | 6.35--38 | 0.25--1.5 | 2.8--12.7 | 2--9FPI | 0.38--1.27 | 0.015 --0.050 | ||
| High Frequency Welding Fin tube | Solid Helical Fin Tubes | 15.88--273.1 | 0.625--10 | 3--25 | 0.118--1 | 5--30 | 0.196--11.811 | 1--3 | 0.0393--0.1181 |
| Serrated Helical Fin Tube | 15.88--273.1 | 0.625--10 | 3--25 | 0.118--1 | 5--30 | 0.196--11.811 | 1--3 | 0.0393--0.1181 | |
| H/HH Type Rectangular Fin tube | 15.88--273.1 | 0.625--10 | 3--25 | 0.118--1 | <219 | <8 | 1--3 | 0.0393--0.1181 | |
| Studded Fin Tube | 15.88--273.1 | 0.625--10 | 3--25 | 0.118--1 | 5--30 | 0.196--11.811 | φ5-20 | ||
| Elliptical/Oval Fin tube | Hot dipped galvanized | 36*14 | 2.5--3 | 0.0984--0.118 | 55*26 | 0.25 | 0.0098 | ||
| Laser Fin tube | Copper,Brass,nickel | 10--45 | 0.393--1.771 | 2--10 | 0.0787-0.3937 | 5--23 | 0.196--0.905 | 0.3-1.2 | 0.011--0.047 |
Studded Tube(Welded Stainless Tube) Advantages:
Due to their high rigidity, studded tubes can be used even under extreme temperature and pressure conditions.
Studded Tube(Black Welded Pipe) Properties:
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
Studded Tube(Weld Galvanized Pipe) Applications：
Steel studded tubes are used instead of finned tubes for heat transfer in the processing industries, generally in furnaces, gas turbines, fired heaters and furnace applications where the surface is exposed to a very corrosive environment and where very dirty gas streams require frequent or aggressive cleaning
Studded Tube(Fin Tube) Specifications：
| Product Specification | ||
| Tube OD | 25~273 (mm) | 1”~10” (NPS) |
| Tube Wall Thk | 3.5~28.6 (mm) | 0.14”~1.1” |
| Tube Length | ≤25,000 (mm) | ≤82 ft |
| Stud Thk | 6~25.4 (mm) | 0.23”~1” |
| Stud Height | 10~35 (mm) | 0.4”~1.38” |
| Stud Pitch | 8~30 (mm) | 0.3”~1.2” |
| Stud Type | Cylindrical, Elliptical, Lens type | |
| Stud to tube surface angle | Vertical or Angular | |
| Material Combinations | ||
| Stud Material | C.S. (most common grade: Q235B) | |
| S.S. (most common grade are AISI 304, 316, 409, 410, 321,347) | ||
| A.S. | ||
| Tube Material | C.S. (most common grade: A106 Gr.B) | |
| S.S. (most common grade are TP304,316, 321, 347) | ||
| A.S. (most common grade are T/P5,9,11,22,91) | ||
| Type of Service | High temperature | |
