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DELLOK Carbon Steel Stainless Steel Laser Welding Fin Tube

1 piece
$10 ≥1 Piece/Pieces
DELLOK Carbon Steel Stainless Steel Laser Welding Fin Tube
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Fin Height: 2mm
Fin Pitch: 2.5mm
Fin Thickness: 0.2mm
Fin Type: Wavy Fin
Heat Treatment: Annealing
Leakage Test: No Leakage
Material: Stainless Steel
Pressure Test: 2.5MPa
Surface Treatment: Polishing
Tube Diameter: 25mm
Tube End Type: Flat End
Tube Length: 1000mm
Tube Thickness: 2mm
Welding Method: Laser Welding
Basic Infomation
Place of Origin: China
Brand Name: Dellok Yonghui
Certification: ISO90001
Model Number: Laser Weld Fin 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: TBD
Product Description

DELLOK Carbon Steel Stainless Steel Laser Welding 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.



Laser Welded Finned Tube Product Description:

Laser welded Fin Tube in the process of use is mainly used for civil wall-hung boilers, industrial boilers, etc., in the operation is mainly the use of its foreign technology, its main advantage in contact with the thermal resistance of zero, the whole equipment compared to high-frequency welding has a large finned ratio, light weight, assembled Heat Exchanger volume compact characteristics, more energy efficient and environmental protection, to meet the emission requirements.



Laser Welding Fin Tube Manufacturing Process:


Laser welding is a high intensity laser beam to the metal surface, through the interaction of laser and metal, metal absorption laser into heat to make the metal melt after the formation of cooling crystallization welding.


DELLOK Carbon Steel Stainless Steel Laser Welding Fin Tube 0


Laser Welding Fin Tube(Welded Spiral Pipe) Advantages:

1.Most Efficient:

Making thermal calculations does not have to involve an added weld wire or its splatter and so contributes and promotes to greater heat transfer efficiencies


Because the laser process does not use a foreign weld wire, there is no added weight. Only the fin or rib and the pipe

3.Full Penetration of Weld:

Due to the laser process, the entire length of the fin and pipe become “one metal” as there is no added weld wire or the required shield gas for the welding process.

4.No Gap Between Fin and Pipe Wall:

There is no void between the fin root and pipe wall which can cause crevice corrosion, an attack that usually takes place in a very tight gap between two surfaces. The gap can promote cold spots and therefor corrosion.

5.Precise, Distortion Free Welds:

Laser is precision tuned without interference of wire or shield gas. Complete melt of the fin to pipe connection along the entire length of the fin

6.Better Weld Control for Joining Dissimilar Metals:

Precision tuned per application

7.Less Splatter:

Cleaner and smoother surfaces will promote better heat transfer, less pressure drop and less opportunity for particulate buildup, no matter how small the blemishes appear to be.

8.Uniform Root Hardness:

Other welding methods can leave uneven hardness throughout the fin to pipe configuration.


DELLOK Carbon Steel Stainless Steel Laser Welding Fin Tube 1


Laser Welded Finned Tube(Stainless Steel Welded Pipes) Properties:

1.thin, continuous weld seam

2.small heat-affected zone

3.only slight discoloration weld site

4.only slight microstructural change in tube and fin

5.high utilization of heat for forming the seam

6.increased safety because of the avoidance of crevice corrosion due to the high weld integrity between tube and fin impurity of the weld seam, as the Laser-welding is carried out under a protective atmosphere


DELLOK Carbon Steel Stainless Steel Laser Welding Fin Tube 2


Laser Welded Finned Tube(Stainless Steel Welded Pipe) Applications:

1.Power Plants

2.Chemical Industry

3.Heat Recovery Plants

4.Heat Industry


DELLOK Carbon Steel Stainless Steel Laser Welding Fin Tube 3


Laser Welded Finned Tube(Spiral Welding Pipe) Specifications:


Product Specification
Tube OD 10~215 (mm) 0.4”~8.5”
Tube Wall Thk 1~6 (mm) 0.04”~0.24”
Tube Length ≤18,500 (mm) ≤60.7ft
Fin Thk 0.3~2.0 (mm) 0.01”~0.08”
Fin Height 3~30 (mm) 0.12”~1.2”
Fin Pitch 2~20 (mm) 1~13 FPI
Fin Type Solid, Serrated
Material Combinations
Fin Material S.S.
Tube Material S.S.
Applied 450°C
Type of Service High temperature



Product Categories : Laser Welded Finned Tube



  • Our Quality
    Our quality awareness stems from the roots of our being. Each product is produced as per customer specifications meeting or exceeding applicable codes and standards. Each product is inspected and related documents are maintained to ensure the compliance. Additional testing and Third Party Inspection Agency can be offered if required by customer for further assurance. We are always concentrated on improving the effectiveness of our Quality Management Systems.
  • Our Service
    Our service means getting the job done the way customer want it done. We always have the customer in our mind atall times. We realize that the customers, needs are different and we have the ability to satisfy those needs. Whether processing on customer-supplied materials or supplying a job completely turnkey, you can always count on us.
  • Our Efficiency
    We can work 24/ 7 to meet your needs. Our proprietary online quote system enables us to rapidly prepare the quotes and reply to you. Our shops can operate 24 hours a day by shifts to satisfy your urgent delivery time. We can also maintain emergency contacts anytime you need, no matter pre-sales or after-sales.
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Get in touch with us
Contact Person : Pax Yang
Tel : +862569521609
Fax : 86-25-6952-5709
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