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DELLOK High Frequency Stainless Steel Longitudinal Fin Tube Welded

1 piece
$10 ≥1 Piece/Pieces
DELLOK High Frequency Stainless Steel Longitudinal Fin Tube Welded
Features Gallery Product Description Request A Quote
Application: Heat Exchanger, Condenser, Evaporator
Connection Type: Threaded, Flanged, Welding
Finned Height: Customized
Finned Pitch: Customized
Finned Thickness: Customized
Finned Type: Longitudinal
Material: Stainless Steel
Pressure Range: Low, Medium, High
Surface Treatment: Polishing, Sand Blasting
Temperature Range: Low, Medium, High
Tube Diameter: Customized
Tube Length: Customized
Tube Material: Carbon Steel, Stainless Steel
Tube Wall Thickness: Customized
High Light:

Stainless Steel Longitudinal Fin Tube


Welded Longitudinal Fin 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, D/A, D/P, T/T, Western Union, MoneyGram
Supply Ability: 10000 Piece/Pieces per Month
Product Description

DELLOK High Frequency Welded Stainless Steel Longitudinal Fin 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:

Finned tubes (or finned pipe) are produced by resistance welding fins in diametrically opposite pairs. The way channels are welded on the external surface of the tube makes them highly efficient.

They are formed from a U channel of material, with the base being pressure rolled and spot welded to the tube or pipe. The number of fins must always be a multiple of four.

All our finned tubes can be manufactured from most weldable or brazable materials. The finned pipe is supplied in straight lengths or U bent form.

Longitudinal Finned Tube

Longitudinal Fin Tube Manufacturing Process:

The longitudinal fin tubes are welded onto the core plain tubes by resistance welding or welding with filler metal.

Welded Steel Pipe

Longitudinal Fin Tube(Carbon Steel Welded Pipe) Advantages:

Provide 8 to 12 times the heat transfer area of bare tubes.

Are more efficient than bare tubes.

Provide smaller exchangers due to increased Heat Transfer area.

Often provide a more economical selection.

Fins can be "Cut & Twist" to increase shell side fluid turbulence and improve heat transfer.


Longitudinal Fin Tube


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.


Fin Tube


Longitudinal Finned Tube(Welded Steel Pipe) Applications:

We supply longitudinal finned tubes for:

double pipe heat exchangers

multi-tube heat exchangers

fire rated heaters

gas coolers

tank heaters

And we are able to accommodate the requirements of various industries, including oil, power, chemical, and petrochemical.


Carbon Steel Welded Pipe



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)



Brown Fin Tube

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.

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