Integral Finned Tube

Product FeaturesIntegral finned tubes are developed to increase the heat transfer performance of fluids while reducing the physical size and cost of the heat exchanger. Fabrication ProcessThe fins are

Tube O.D. : 12.7 to 25.4 (mm)
Tube Wall Thk. : 1.65 to 3.0 (mm)
Tube Length : No practical limit
Tube Material : C.S., S.S., A.S., Copper, Titanium
Fin Thk. : 0.3 to 0.5 (mm)
Fin Height : 0.9 to 1.3 (mm)
Fin Pitch : 666 to 1111 FPM
Fin Type : Integral

Product Features

Integral finned tubes are developed to increase the heat transfer performance of fluids while reducing the physical size and cost of the heat exchanger.

Fabrication Process

The fins are rolled out from the wall of the tubes and hence are integral with the tube. As the fins are formed from the base tube by rolling out material from its wall, the wall thickness under the finned section is reduced compared to the wall thickness at plain ends. These fin tubes can be manufactured from most tubular materials and the hardness of the material usually determines the finning code or fin profile. The harder materials such as Nickel Alloys, Stainless Steel, Titanium are supplied with higher density (i.e. 26, 28, 30 FPI). This shallow profile reduces the work hardening of the material and helps to eliminate the possibility of root fin cracking.

Whereas, softer materials like Carbon Steel, Copper, and Copper Alloys are supplied with deeper profile giving a lower fin density (i.e. 16 or 19 FPI). These tubes can also be supplied with intermediate plain landing as well as U bent, where U bend portion can be finned or un-finned.

Dimension and Material

The following table shows Simcan’s manufacturing capabilities: 

Tube O.D.:

12.7 to 25.4 (mm)

1/4” to 3/4”(NPS)

Tube Wall Thk.:

1.65 to 3.0 (mm)

0.065” to 0.118”

Tube Length:

No practical limit

No practical limit

Fin Thk.:

0.3 to 0.5 (mm)

0.0118” to 0.0197”

Fin Height:

0.9 to 1.3 (mm)

0.0354” to 0.0512”

Fin Pitch:

666 to 1111 FPM

16 to 30 FPI

Fin Type:


Tube Material:

C.S., S.S., A.S., Copper, Titanium

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

Codes and Standards

As per drawings and client’s Requirements

Surface Treatment and Protection

Each tube except stainless material will be polished by polishing machine to near white condition before welding.

After welding, the finned tubes will be coated with anti-rust oil for transportation and site storage purpose, normally the coat will provide a period of 3 months prevention, any other coating material for longer prevention is also available as per clients’ requirements.


Each package is designed and made according to seaworthy packing standard and clients’ handling and lifting capability.

Finned tubes will be packed into steel frameworks and wrapped with weather proof PE film and plywood board covering up. In addition, each row of finned tubes will be isolated from adjacent with plywood bar to prevent rigid impact during transportation. For all exporting packages, we only use plywood instead of wood for fumigation free purpose.   


As a professional supplier, Simcan does not only manufactures products but also has full capability on preparing and submitting documents as listed below but not limited to:

Before Fabrication

  • Design and Fabrication Schedule

  • Drawings and data

  • Fabrication Procedures

  • Inspection and Test Plan (ITP)

During Fabrication

  • Daily, weekly or monthly progress report

After Fabrication

A complete set of final archive including

  • Raw Material Mill Certificates

  • Product Conformity Certificate

  • Inspection Reports including Material Receipt Inspection Report, Test Report etc.

  • Test report by world reputable third party such as TÜV, BV, SGS, Lloyd's, ABS, Intertek(Moody), Shanghai Jorson etc. if any

  • Packing List and Proforma Invoice

  • Certificate of Origin or any other documentation mandatory for clients’ customs clearance or tax preference

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