ASTM A210 ASME SA210 GR A1 Carbon Steel Aluminium Fin Extruded Air Cooled Heat Exchanger Tube

ASTM A210, ASME SA210 GR A1 CARBON STEEL ALUMINIUM FIN EXTRUDED

The A179 Carbon Steel Extruded Fin Tube with AL1060 Aluminum Fins is a high-performance heat transfer component widely used in heat exchangers, boilers, and air coolers. This specific type of finned tube combines the strength and durability of A179 carbon steel with the excellent thermal conductivity of 1060 aluminum, making it ideal for applications where efficient heat transfer is critical.

Key Specifications and Material Properties:

1. Base Tube Material (A179 Carbon Steel):

   • ASTM A179: This grade of carbon steel is designed for seamless, cold-drawn tubes used specifically in heat exchangers, condensers, and similar high-temperature applications. A179 carbon steel is known for its strength, good ductility, and thermal conductivity, making it suitable for high-pressure and high-temperature operations.
   • Dimensions: Tubes made of A179 typically come in various sizes and wall thicknesses depending on the application’s pressure and heat requirements.

2. Fin Material (AL1060 Aluminum):

   • Aluminum Grade 1060: This grade of aluminum is exceptionally pure (99.6% aluminum content), providing high thermal conductivity, excellent corrosion resistance, and a smooth finish. Its high purity also means it is more malleable, which is beneficial in the extrusion process to create uniform fins.
   • Extruded Fins: In the extruded type, aluminum fins are seamlessly bonded with the carbon steel tube, creating a high-performance heat transfer surface with no gaps. This is achieved by placing the aluminum sleeve over the tube and using a high-pressure extrusion process to form the fins, resulting in excellent thermal contact between the tube and the fins.

Applications:

1. Petrochemical Industry: Used in heat exchangers and air coolers where hydrocarbons or process fluids need efficient heating or cooling.
2. Power Generation: Employed in boilers, economizers, and air-cooled heat exchangers in power plants to maximize heat transfer efficiency.
3. HVAC Systems: Common in industrial HVAC systems for air handling units and heat recovery systems, where air must be heated or cooled effectively.
4. Refrigeration Systems: Used in condensers and evaporators, where the efficient transfer of heat in a compact space is essential.

Advantages:

1. High Thermal Conductivity: AL1060 aluminum fins provide superior thermal conductivity, allowing for faster heat transfer from the fluid within the tube to the air or cooling fluid outside.

2. Durable Bonding: The extrusion process creates a durable, seamless bond between the carbon steel tube and the aluminum fins, improving the mechanical stability and longevity of the finned tube under high temperatures and vibrations.

3. Corrosion Resistance: While the A179 tube offers mechanical strength, the AL1060 aluminum provides a layer of corrosion resistance, especially useful in humid or corrosive environments.

4. Efficient Heat Transfer Surface: Extruded fins significantly increase the surface area, maximizing heat transfer efficiency and allowing the tube to perform well in high-demand applications.

5. Cost-Effectiveness: Compared to other finning methods, extruded fins are cost-effective and offer a good balance between performance and price.

Manufacturing Process:

1. Tube Preparation: The seamless A179 carbon steel tube is fabricated and prepared according to the required dimensions.

2. Aluminum Fin Extrusion: An aluminum sleeve of AL1060 is placed around the tube. During the extrusion process, high pressure is applied to form the aluminum into fins around the tube, creating a tight, seamless bond with excellent thermal conductivity.

3. Quality Control: Each finned tube is tested for mechanical strength, fin integrity, and bonding quality to ensure it meets industry standards and customer requirements.

Benefits of Extruded Fin Tubes over Other Fin Types:

• Better Thermal Contact: Extruded fins have a seamless bond, offering superior thermal conductivity compared to welded or brazed fins.
• Increased Durability: Extruded fins are highly resistant to mechanical stress, which can be advantageous in environments with vibrations or fluctuating temperatures.
• Low Maintenance: The tight, uniform bonding between the tube and fins minimizes issues like fin loosening or detachment, reducing the need for frequent maintenance.

Conclusion:

The A179 Carbon Steel Extruded Fin Tube with AL1060 Aluminum Fins is a robust, efficient solution for industries requiring high-performance heat transfer equipment. With the strength of carbon steel and the thermal efficiency of aluminum, it meets the demands of industries like petrochemical, power generation, and HVAC, where reliable heat transfer and durability are essential. The extruded fin design further enhances its performance, making it a preferred choice for demanding heat exchange applications.