Campfire Steel
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Professional Manufacturing & Exporting Excellence
We provide specialized solutions and product customization with a dedicated technical team. Our production facilities include:
Highly efficient yet cost effective, L-footed finned tubing offers maximum heat transfer at lower temperatures. The unique L-shaped design holds fins rigidly to withstand heat cycling and high velocity air vibration. This design provides tube wall protection against corrosion and enhances heat transfer through a broad contact surface.
The KL fin (knurled L fin) is helically wound onto the tube under tension. A spinning tool knurls the base tube, and the foot of the fin is knurled into it, resulting in a tight bond and improved thermal performance. Suitable for temperatures up to 320°C (608°F).
The foot is prepared into a controlled stepped double L shape. One fin overhangs the foot of the next, covering the base tube completely. This provides excellent corrosion protection, often used as an alternative to expensive extruded types. Suitable for temperatures up to 177°C.
| TYPE | TUBE MATERIAL | FIN MATERIAL | TUBE SIZE (mm) | FIN SIZE |
|---|---|---|---|---|
| Extruded Fin Tube | All Materials | Aluminum A1100 | 15.88~50.8 | 7~11.5FPI |
| L-Foot Fin Tube | All Materials | Copper C1100, C1220 | 12.70~50.8 | 7~11.5FPI |
| High Frequency Welded | Carbon/Stainless/Alloy | Steel/Stainless | 12.70~160 | 1.5~7FPI |
| Integral Copper Alloy | C12200, C70600 | C12200, C70600 | 15.88~22.23 | 5~9FPI |
| Low Fin Tube | CS, SS, Titanium, Copper | -- | 9.52~40 | 12~28 FPI |
Our finned tubes are widely utilized across various industries:
