Integral Finned Tubes
Our Product
Integral Finned Tubes
Anand Seamless Ltd. manufactures high-performance Integral Finned Tubes, also known as Low Fin Tubes, using precision machining techniques where fins are integrally formed from the base tube material itself—not attached or welded. This design ensures exceptional fin-to-tube bonding, superior mechanical strength, and excellent thermal conductivity.
These tubes are ideal where moderate heat transfer is required and space or weight savings are important. Their compact design, improved heat exchange surface, and cleanability make them a popular choice in HVAC, chemical processing, and marine applications.
Technical Specifications
|
Sr. No. |
Particulars |
Range |
|---|---|---|
1 |
Base Tube Material |
Carbon Steel, Stainless Steel, Copper, Titanium |
2 |
Tube OD (Plain Section) |
12.7 mm to 25.4 mm |
3 |
Fin Type |
Machined Integral Fin (Low Fin) |
4 |
Fin Height |
Up to 1.3 mm |
5 |
Fin Density |
19 FPI to 26 FPI |
6 |
Tube Length |
Up to 12,000 mm |
7 |
Fin-to-Tube Bond |
100% Continuous (integral – same material) |
8 |
Heat Transfer Area Increase |
Up to 2.5 times over plain tube |
9 |
Surface Finish |
Machined, Cleanable |
10 |
Suitable Applications |
Shell & Tube Heat Exchangers, Condensers, Marine Coolers |
International Standards Applicable
- ASTM B359 (for copper-based integral fins)
- EN 10204 – 3.1 / 3.2 Certification
- Base Tube Standards: ASTM A213 / A249 / B111 / B75
- TEMA compatibility for heat exchanger applications
Frequently Asked Questions (FAQs)
What makes integral fins better than external fins?
Integral fins are machined from the parent tube material, eliminating any risk of bonding failure and ensuring uniform heat transfer.
Are integral fin tubes suitable for marine and corrosive environments?
Yes. Especially when made from copper, stainless steel, or titanium, they offer excellent corrosion resistance.
Can these tubes be cleaned easily?
Absolutely. The smooth, machined profile allows easy cleaning by brushing or fluid flushing.
What is the typical surface area gain with integral fins?
You can expect 2 to 2.5 times more surface area compared to a plain tube of the same size.
