Maximum operating temperature for extruded finned tube is 300 °C.

As a result, the tubes base is completely connected to the main tube. Since these fins never break, deform or loosen, their heating efficiency does not change over time.

Advantages Of This Fin Tubes:

Corrosion resistance in air is very high;

Easy cleaning;

Excellent efficiency;

More reliable capacity for thermal transfer.

Fin Material is aluminum (standard form) and copper (occasionally).

Tube material is copper, copper nickel, titanium, Carbon steel, or Stainless steel.

Application:

Primarily extruded finned tubes are used in high temperature conditions and corrosive atmospheric conditions, such as operating temperatures less than 300°C or off-shore applications; heat pipes air to air heat exchangers for HVAC applications, air dehumidification in air treatment plants, energy recovery in air exhaust system. This kind of fin design is the least economical as compared to the other fin types; main reason due to the increased amount of aluminum used around 40% also increased labors during the manufacturing. However this increased cost can be compensated if using lower grade parent tube material.

Max. Working Temperature:  600 °F

Atmospheric Corrosion Resistance: OK

Mechanical Resistance: Poor

Fin Material: Copper, Aluminum

Base Tube materials: Any material available, such as Carbon Steel tube, A179, A192, A210, stainless tube A269/A213 T5 T11 T22 304 316

Applications:

Economizers

Heat exchangers

Marine boilers

Key Words: Finned Tube, Fin Tubes, Extruded Fin Tubes, Extruded Finned Tube, Embedded Fin tubes,  G type Finned tube, L Fin tube, “LL” type fin tubes, KL fin tubes, knurled finned tubes, Tubos Aletados