ASME SA192 Carbon Steel Serrated Finned Tube for Boiler Economizer

Product Specification

ASME SA192 High Frequency Welded Serrated Fin Tube for Heat Exchangers 

Introduction to ASME SA192 Serrated Fin Tubes

The ASME SA192 Serrated Fin Tube is a highly efficient heat transfer component widely used in severe industrial environments. Manufactured using high-grade seamless carbon steel boiler tubes (ASTM A192 / ASME SA192) as the base, it features segmented/serrated fins securely welded to the tube's outer surface. Compared to solid fins, the serrated design significantly increases the heat transfer coefficient by breaking the thermal boundary layer of the gas stream, offering a superior heating solution for high-pressure industrial applications.

Structural Design & Manufacturing Process of SA192 Serrated Finned Tubes

The excellent structural integrity of our SA192 serrated finned tubes is guaranteed by advanced manufacturing technologies:

• SA192 Base Tube: We utilize high-pressure seamless carbon steel tubes (SA192) known for their exceptional strength and pressure resistance under high-temperature operations.

• Serrated Fins: The fin strip is pre-cut into serrations (teeth) before being wound around the tube. This structural design drastically expands the contact surface area and reduces gas flow resistance.

• High-Frequency Resistance Welding (HFRW) Process: The serrated fins are continuously helically wound onto the SA192 base pipe. Using a high-frequency electrical current, both the fin base and the tube surface are melted and forged together under pressure. This creates a 100% metallurgical bond, ensuring zero thermal contact resistance and preventing fin shedding even under extreme mechanical vibrations.

Chemical Composition of SA192 Base Pipe & Carbon Steel Fins

To guarantee the safety and thermal conductivity of the heat exchangers, the raw materials of our SA192 finned tubes strictly comply with ASME/ASTM standards. Below is the exact chemical composition data:

Dimensional Tolerance Range for SA192 Finned Tubes

Precision is critical in boiler manufacturing. Our factory implements stringent dimensional control for all SA192 carbon steel fin tubes to ensure seamless installation for your equipment.

Performance Advantages of SA192 Carbon Steel Serrated Fin Tubes

Upgrading to SA192 serrated fin tubes provides significant engineering and economic benefits:

• Enhanced Heat Transfer Efficiency: The serrated fins create turbulence in the cross-flow gas stream, increasing the heat transfer rate by 15% to 20% compared to standard solid fins.

• Excellent Pressure Resistance: The SA192 seamless carbon steel base is engineered specifically for high-pressure service, preventing bursts in critical boiler applications.

• Anti-Fouling Properties: The continuous turbulence generated by the serrated teeth helps clean the tube surface, significantly reducing ash accumulation and fouling in dirty gas streams.

• Lightweight & Material Saving: For the same thermal output, serrated fins use less material and weigh significantly less, reducing the overall structural load on the boiler casing.

Detailed Application Areas for SA192 Serrated Fin Tubes

Due to the robust nature of the SA192 base material, these fin tubes are the primary choice for heavy-duty thermal applications. They are prominently utilized in:

• Boiler Economizers: Recovering waste heat from exhaust gases to pre-heat boiler feed water.

• Heat Recovery Steam Generators (HRSG): Crucial components in combined-cycle power plants.

• Fired Heaters & Furnaces: Widely used in the convection sections of petrochemical refineries.

• Waste Heat Boilers: Installed in cement, metallurgical, and chemical plants for maximum energy recovery.

Our Expertise in Manufacturing SA192 Serrated Fin Tubes

As a premier manufacturer and exporter, we have deep engineering expertise in delivering high-quality SA192 finned tubes to global clients.

• Certified Manufacturing: Our production lines are strictly certified under ISO 9001 and ASME quality systems.

• Rigorous Testing: Every single SA192 serrated fin tube undergoes Hydrostatic Testing, Eddy Current Testing (ECT), and fin-to-tube bond pull tests before shipment.

• Customization Experience: With over a decade of export experience, we process drawings quickly and manufacture customized fin pitches, heights, and lengths precisely to your project's specifications.

• Export-Ready Packaging: We use heavy-duty steel frames and wooden boxes with inner desiccants to ensure your SA192 carbon steel tubes arrive rust-free and undamaged.