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HFW Serrated Finned Tubes short for High Frequency Welded Helical Spiral Serrated Finned Tube. The High Frequency Welded Serrated Fin Tube is one kind of tubular type efficient heat transfer element having serrated fins.

Helical serrated finned tube, the serrated fin is a metal strip that has been serrated or cut and then helically wound around the base tube. Others are same as high frequency welded solid fin pipes.

The important features of this configuration are efficient, effective bond of fin to tube under all conditions of temperature and pressure, and ability to withstand high fin side temperatures. This serrated fin configuration is even better to withstand the fin fouling if that is a problem in the application. This gives better heat transfer properties compared to solid fins

HFW Serrated Finned Tubes

Technical Details

Base Tube Details

Tube Diameter       :      20 mm OD Min to 219 mm OD Max.

Tube Thickness      :      Minimum 2 mm up to 16mm

Tube Material :      Carbon Steel, Stainless Steel, Alloy Steel, Corten steel, duplex Steel, Super Duplex Steel, Inconel, High Chrome High Nickle & Incolloy, CK 20 material and some other material.

Fin Details

Fins Thickness       :      Min. 0.8 mm to Max. 4 mm

Fins Height     :      Min 0.25” (6.35 mm) To Max.1.5” (38 mm)

Fin Density     :      Min 43 Fins per Meter to Max. 287 Fins per Meter

Material  :      Carbon Steel, Stainless Steel, Alloy Steel, Corten steel, Duplex Steel and Incolloy.

For a rapid quotation, plz send with following requirement:

Number of pieces,

base tube: Diameter, thickness, length and material specification.

Fins: material specification, type (solid or serrated), height, thickness, spacing, finned length and unfinned sections. Weld prep details if required.

The following table shows manufacturing capabilities for High Frequency Welded Serrated Fin Tube: 

Tube O.D.:

16 to 273 (mm)

3/8” to 10”(NPS)

Tube Wall Thk.:

2 to 28.6 (mm)

0.08” to 1.1”

Tube Length:

≤28,000 (mm)

≤92 ft

Fin Thk.:

0.5 to 3.5 (mm)

0.02” to 0.14”

Fin Height:

8 to 35 (mm)

0.31” to 1.3”

Fin Pitch:

3 to 333 FPM

1 to 8 FPI

Fin Type:

Solid, “U”or“V” Serrated

Fin Material:

C.S. (most common grade: 08F, SPCC)

S.S. (most common grade are AISI 304, 316, 409, 410, 321,347 )


Tube Material:

C.S. (most common grade: A106 Gr.B, A210, A192)

S.S. (most common grade are TP304, 316, 321, 347 )

A.S.(most common grade are T/P5,9,11,22,91 )

Duplex Steel(most common grade are 2205 etc. )

* This table is used as a general guide to our capabilities, please call us for any other customized cases.

High Frequency Welded Serrated Fin Tube fabrication process.

The steel fin is helically wound and continuously welded to the tube by high frequency electric resistance welding(HFERW). Before the fin strip is serving to the welding machine, it will be serrated first, the rest of process is as same as welding the solid fin tubes.

High Frequency Welded Serrated Fin Tube Delivery period required.

Total eight (8) PLC High Frequency Welded Serrated Fin Tube finning lines, monthly production capacity is 1200 tons in total.

In order to forward you a promt offer we would be pleased to receive you detailed enquiry including:
• Base tube material 
• Base tube size (OD x WT x Length)
• Fin material
• Fin type
• Fin diameter or height
• Fin thickness
• Fins per inch, meter or fin pitch
• Lenght of plain, unfinned ends
• Finned Tube Quantity
(Additional fabrication, such as bend or weld the tubes into tubeplate or assembly)

Keywords: Fin tubes, Finned tube, Finned Pipe Helical Finned Tubes, Solid fin tubes,Serrated finned tube, Helical Serrated Finned Tubes, Square Fin Tube,Rectangular Double H welding Fin Tube,Tubos Aletados

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