FAQs for Stainless steel Extruded Fin Tubes/ Stainless steel Bimetallic Fin Tubes
1) What is Fin Tubes?
Fin Tubes or Finned Tubes are a type of heat exchanger tubes. They are used mainly in an air-cooled type heat exchanger where the exchange of heat takes place between gas flowing on the Fins and the fluid flowing inside the Fin Tubes. The main purpose is to increase the surface area to facilitate more exchange of heat between the medium and the air.
2) What is Extruded Fin Tubes or Bi-Metallic Fin Tubes?
Extruded Fin Tubes or Bi-Metallic Fin Tubes are a type of fin tubes that have extruded fins from the outer surface. Aluminum extruded finned tubes, also called [integral finned tubes” using the form of the base tube covered with aluminum tube(the base tube can be carbon steel, stainless steel, copper) through machine extrusion, forming a tube fin, the fin base and the tube outer wall is close fitting, this fin tubing control can make finned tubes with high heat transfer coefficient and heat transfer performance.
3)What are the advantages of extruded finned tubes or bimetallic finned tubes?
Extruded Finned Tube can be made of iron, copper or aluminum tube by compound rolling, which has the advantages of tight bonding, small thermal resistance, good heat transfer performance, high strength, small flow loss, strong anti-corrosion performance, not easy to deformation under long-term hot and cold working conditions, long working life and so on.
4) What is the production process Extruded finned tube？
The production method of the composite finned tube mainly includes the extrusion method: the bimetallic composite tube is lined with a mandrel, and driven by the rotation of the roller blade, the composite tube is processed on the outer surface through the cavity formed by the rolling groove and the core head Out fins. The heat transfer tube produced by this method is an organic whole with its outer tube and fins, so there is no problem of contact heat loss, and it has good performance and high heat transfer efficiency.
5)What is The Stainless steel finned tube advantages?
A.Corrosion Resistance: Stainless steel offers excellent resistance to corrosion, making it suitable for environments with high humidity, chemicals, or salt exposure.
B.High Strength: Stainless steel is inherently strong, providing durability and structural integrity to the finned tubes, making them suitable for high-pressure applications.
C.Durability: Stainless steel finned tubes have a long lifespan due to their resistance to corrosion, oxidation, and degradation over time.
D.Hygienic Properties: Stainless steel is easy to clean and sanitize, making it suitable for applications in industries like food processing, pharmaceuticals, and healthcare where hygiene is crucial.
Extruded Tube Specifications：
|
Tube OD |
10~51 (mm) |
0.4”~2” |
|
Tube Wall Thk |
1.65~3.0 (mm) |
0.065”~0.118” |
|
Tube Length |
≤18,500 (mm) |
≤60.7 ft |
|
Fin Thk |
0.3~1.2 (mm) |
0.012”~0.047” |
|
Fin Height |
5~16 (mm) |
0.2”~0.63” |
|
Fin Pitch |
1.8~8 (mm) |
3~14 FPI |
|
Fin Type |
Extruded |
|
|
Material Combinations |
||
|
Fin Material |
Aluminum (most common grade:Alu.1100, Alu.1060, Alu. 6063) |
|
|
Tube Material |
SS (most common grade: TP304, TP316, TP321,) |
|
|
Applied |
250°C-300°C |
|
|
Type of Service |
Medium temperature, severe atmospheric corrosive environment. |
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Description
Product Name: Extruded Finned Tube, Bimetallic Finned Tube,ASME SA-179 Tube Aluminum Fin, Stainless Aluminum Finned tube,Copper Aluminum Finned tube
• Base Pipe OD: 15.88-50.8mm
• Fin Height: 5.0-16mm
• Fin Thickness: 0.3 -1.2mm
• Number of Fins: 3~14 FPI
• Fin Pitch: 1.8mm-8mm
• End: Plain Ends, Beveled Ends,BST
Base Tube Material
• Carbon Steel： SA179, SA334, SA214, SA106B, GB8163, GB9948, GB3087,10#, 20#,
• Stainless Steel：SA789, SA213, SA312, SA210, SA249, 304, 316L, T11,
• Cooper：ASTM B111/ASME SB111:C12200,C68700,C44300,C71500,CuNi90/10, 70/10,70/20,70/30
Fin Material
• Aluminum：AA 1000 Series,AA 3000 Series,AA 6000 Series
If you have any Inquiry, please don't hesitate to contact us immediately,
Email:info@fintuberadiator.com
Specification
| 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 |
