ASTM / ASME SA179 Carbon Steel Extruded Finned Tube Heat Transfer Tube

Extruded fin tubes are a type of finned tube where the fins are integrated into the tube itself by an extrusion process. This method involves forcing high-strength aluminum or copper alloy through a die with the tube, shaping the fins in the process. This creates a sturdy bond between the base tube and the fins, resulting in excellent heat transfer efficiency. Extruded fin tubes come in various fin geometries such as plain, low, and high fin configurations to suit different heat transfer requirements. These types of fin tubes are commonly used in air-cooled heat exchangers, industrial boilers, refrigeration systems, and other applications where efficient heat transfer is crucial.

Why use aluminum fins?

According to the heat exchange application and operation, there are various materials.

The common ones are Aluminum, Alloy, Copper, Brass, Nickel, Titanium, Stainless Steel, Carbon Steel, etc, among which the aluminum and alloy are mostly used.

The basic performance for fin tube heat exchange should be with good solder ability and form ability, higher mechanical strength, good corrosion resistance and thermal conductivity. In spite of these, aluminum and alloy are also featured in extension and higher tensile strength increases under lower temperature. Around all world, especially for low temperature and compact heat exchange, they are widely applied.

The Feature of Aluminum:

1. Low Density
By alloying and heat treatment, it can reach the structural of construction steel. Suitable for various transportation, especially for small vehicle, reducing weight and consumption.

2. Good Corrosion Resistance
When under harsh conditions, the materials oxide from aluminum is non-toxic. With aluminum heat exchange, no worries that air or liquid inside will be destructed by oxide after long time.

3. Good Thermal Conductivity
Especially suitable for radiating fin, heat transfer evaporator and condenser.

4. High Yielding and resistance to die cutting.
It is easy for processing and forming.

Applications

ASTM A179 Fin Tubes are widely used in industries such as petroleum, chemical, medical, food, light industry, machinery, instrument, include industrial pipeline and mechanical structure parts, etc.