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DELLOK ASTM A106 Seamless Steel Longitudinal Finned Tube

1 piece
$200 - 2000 /Piece/Pieces
DELLOK ASTM A106 Seamless Steel Longitudinal Finned Tube
Features Gallery Product Description Request A Quote
Application: Heat Exchangers, Condensers, Evaporators
Connection Type: Welded, Threaded, Flanged
Fin Height: Customized
Fin Pitch: Customized
Fin Thickness: Customized
Fin Type: Serrated, Plain, Louvered
Length: Customized
Material: Stainless Steel
Surface Treatment: Polishing, Anodizing, Powder Coating
Tube Diameter: Customized
Tube Length: Customized
Tube Material: Stainless Steel, Copper, Aluminum
Tube Thickness: Customized
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ASTM A106 Longitudinal Finned Tube


Seamless Longitudinal Finned Tube

Basic Infomation
Place of Origin: China
Brand Name: Dellok Yonghui
Certification: ISO90001
Model Number: Longitudinal Finned Tube
Payment & Shipping Terms
Packaging Details: wooden box
Delivery Time: 1-3 weeks
Payment Terms: L/C, T/T, D/A, D/P, Western Union, MoneyGram
Supply Ability: 10000 Piece/Pieces per Month
Product Description


DELLOK ASTM A106 Seamless Steel Longitudinal Finned Tube



About Us


Dellok(YONGHUI Radiating Pipe Manufacturing Co.,Ltd) was established in 2002, which is located in Nanjing, China.We joined HARBIN AIR CONDITIONING CO., LTD. in 2022 and became the most professional industry manufacturer in China. After many years of development, the company now has 66 million yuan in fixed assets, more than 200 employees, and 33 technical staffs. We have 4 aluminum processing production lines, with the annual processing capacity of more than 20,000 tons; And we have 5 tube-drawing production lines; 47 fintube production lines, 1 imported production line from American with the brand of McElroy , with the annual production capacity of 12 million meters the above.

Quality is the theme of eternal pursuit of winner.



Longitudinal Finned Tube Product Description:

As with welded spiral finned tubes, this welded structure can be used for virtually any heat transfer application.

The choice between longitudinal finned tube and spiral finned tube seems to depend mainly on geometric factors. For example, some heater structures consist of finned tubes inserted into other tubes -- longitudinal finned tubes are an obvious choice for such applications. In other cases, users prefer the longitudinal finned tube installation, where the tube will be in a vertical direction - the finned direction facilitates fluid drainage on one side of the finned tube.

Longitudinal finned structures are most commonly used in shell and tube applications, such as in double-tube and multi-tube heat exchangers, where the longitudinal finned tube is telescopic in the hole of a larger tube shell. Heat is transferred between the fluid flowing through the finned tube hole and the fluid flowing through the shell hole.

The fluid flowing through the shell hole is forced to flow between the longitudinal fins. In this case, the spiral fin prevents the flow of the fluid, rather than allowing it to flow between the fins.

Longitudinal Finned Tube



Longitudinal Fin Tube Manufacturing Process:

The longitudinal I/L or U fins are welded onto the base tubes by resistance welding or welding with filler metal. U-Bend tubes with LFW, Fins also possible.



Brown Fin Tube



Longitudinal Fin Tube(Carbon Steel Welded Pipe) Advantages:

1. Longer working life than others ordinary welding helical fin tubes.

2. Much safer and energy saving.

3. Increase the heat transfer rates for viscous liquids.

4. Perforated fin type used whenever drainage of liquid from fin channels become a problem.

5. Longitudinal fin tubes are widely used in horizontal heat exchangers.


Welded Steel Pipe


Brown Fin Tube Properties:

Improve heat transfer efficiency in efficient space.

Reduces installation space on required heat transfer surfaces.

Reduce the cost of the equipment, and have a high operational reliability.

The pressure drop on the side of the tube is reduced and the operation cost is reduced.

The stiffness of steel tube is improved, and the seismic performance of steel tube is improved.

Enhance heat transfer, reduce flow resistance and metal consumption.


Longitudinal Fin Tube



Longitudinal Finned Tube(Welded Steel Pipe) Applications:

1. Chemical-,petrochemical-,oil-,and power industry

2. Heat exchanges

3. Fired heaters

4. Gas coolers and heaters

5. Tank heaters.


Fin Tube




Longitudinal Finned Tube Specifications:

Product Specification
Tube OD 16~273 (mm) 3/8”~10”(NPS)
Tube Wall Thk 2.11~25.4 (mm) 0.08”~1”
Tube Length ≤12,000 (mm) ≤39 ft
Fin Thk 1.0~1.5 (mm) 0.04”~0.06”
Fin Height 5~25 (mm) 0.2”~0.98”
Fin Pitch 1U~36U
Fin Type “U”or“I/L”
Material Combinations
Fin Material C.S. (most common grade: Q235B)
S.S. (most common grade are AISI 304, 316, 409, 410, 321,347)
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)



Carbon Steel Welded Pipe

Product Categories : Longitudinal Finned Tube





Q1: Are you trading company or manufacturer?

A: We are manufacture factory and we can accept OEM order. Welcome to visit our factory and check our products.


Q2: Can I have a sample ?

A: Yes, welcome to place sample order to test and check quality. Mixed samples are also OK.


Q3: What is your the lead time for production?

A: Generally Sample needs 1-3 days, mass production needs 15-30 days, also depends on your request.


Q4: What is the warranty for your products?

A :We provide one year warranty for the products.


Q5: What payment terms do you accept?

A :Trade assurance,TT,Western Union.


Q6: What are the modes of transportation of machines?

A: Air freight, sea freight express delivery, etc. We will choose the most suitable transportation method according to your requirements.Low fin Tube

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Get in touch with us
Contact Person : Pax Yang
Tel : +862569521609
Fax : 86-25-6952-5709
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