ASTM A179 Carbon Steel Fin Tube A1100 Aluminium Strip For Heat Exchanger

A179 Carbon Steel Seamless Tube with A1100 Aluminium Strip G-Type Fin Tube

Instruction

The A179 carbon steel seamless tube with A1100 aluminum strip G-type fin tube is a combination of a seamless steel base tube and a fin structure made from aluminum.

• Base Tube (A179 Carbon Steel Seamless Tube): ASTM A179 specifies low-carbon steel tubes, which are seamless and cold-drawn. They are typically used for heat-exchanger tubes, condensers, and similar applications that require excellent heat transfer properties, combined with strength and durability.

• Fin Material (A1100 Aluminum Strip): The A1100 aluminum strip is made from commercially pure aluminum with 99% or more aluminum content. This grade of aluminum is known for its excellent corrosion resistance, high thermal conductivity, and flexibility, making it suitable for fin applications.

• G-Type Fins: The G-type finning method involves embedding the aluminum strip into a groove on the carbon steel tube. This provides strong mechanical bonding between the tube and the fins, ensuring efficient heat transfer and improved thermal efficiency.

Advantages

1. Enhanced Heat Transfer: The combination of carbon steel and aluminum results in efficient heat transfer. The G-type fins increase the surface area available for heat exchange, thus improving thermal performance.

2. Corrosion Resistance: The A1100 aluminum strip provides corrosion resistance, especially in environments prone to oxidation. This helps to extend the life of the fin tube when exposed to humid or corrosive conditions.

3. Mechanical Strength: A179 carbon steel provides the tube with the necessary mechanical strength and durability, making it capable of withstanding high pressures and temperatures in heat exchanger systems.

4. Improved Bonding: The G-type finning process creates a strong mechanical bond between the aluminum fins and the carbon steel tube, ensuring that the fins remain securely attached even under high-stress conditions such as thermal cycling.

5. Cost-Effective: Using carbon steel for the tube and aluminum for the fins provides a cost-effective solution compared to full stainless steel or copper alternatives, while still offering excellent performance in many applications.

Application

1. Heat Exchangers: The A179 carbon steel seamless tube with G-type aluminum fins is widely used in various types of heat exchangers, including air-cooled heat exchangers and shell-and-tube heat exchangers. It is often found in industries such as power generation, petrochemical, and HVAC.

2. Boilers: These finned tubes are used in economizers, air preheaters, and heat recovery systems where thermal efficiency is critical.

3. Condensers: Their enhanced heat transfer capabilities make them ideal for use in condenser systems, particularly where efficient cooling is required in industrial and commercial settings.

4. Furnaces and Ovens: They are used in industries requiring high-temperature heat exchange, such as metal processing, drying systems, and kilns.

5. Refrigeration and Air Conditioning: The tubes are applied in evaporators and condensers within HVAC systems due to their ability to efficiently transfer heat between air and refrigerants.