ASME SA213 T12 HFW Fin Tube , For high-temperature and high-pressure environments

ASME SA213 T12 HFW Fin Tube , For high-temperature and high-pressure environments

ASME SA213 T12 high-frequency welding fin tubes are specialized heat transfer components widely used in industries such as power generation, petrochemical, chemical processing, and other sectors that require efficient heat exchangers. These tubes are designed and manufactured to meet the stringent requirements of the ASME SA213 T12 standard, ensuring excellent performance in high-temperature and high-pressure environments.

Material Specifications

• Base Tube Material:
  The base tube is manufactured from ASME SA213 T12 steel, a low-alloy ferritic steel. It is known for its excellent resistance to high temperatures, oxidation, and corrosion. The material has good mechanical properties, making it ideal for heat exchanger applications.

  • Chemical Composition (Typical):

    • Carbon (C): 0.05–0.15%
    • Manganese (Mn): 0.30–0.60%
    • Silicon (Si): 0.50% max
    • Chromium (Cr): 0.80–1.25%
    • Molybdenum (Mo): 0.44–0.65%
    • Phosphorus (P): 0.025% max
    • Sulfur (S): 0.025% max

  • Mechanical Properties:

    • Tensile Strength: Minimum 415 MPa
    • Yield Strength: Minimum 220 MPa
    • Elongation: Minimum 30%

• Fin Material:
  The fins are typically made from carbon steel, stainless steel, or aluminum, depending on the application. These materials are selected for their thermal conductivity, corrosion resistance, and durability.

Manufacturing Process

The high-frequency welding process is the key to manufacturing these fin tubes. This process ensures a strong bond between the tube and the fins while maintaining high precision and efficiency.

1. Tube Preparation:
   The base tube is cleaned and prepared to ensure a clean surface for welding.

2. Fin Preparation:
   Fins are typically formed into a helical shape with precise dimensions to ensure uniform spacing and maximum heat transfer surface area.

3. High-Frequency Welding:

   • The fins are helically wound around the base tube.
   • High-frequency electrical current is applied to create a localized melting zone between the fin edge and the tube surface.
   • Pressure is applied simultaneously to forge a strong metallurgical bond.

4. Post-Weld Treatment:
   The tube undergoes heat treatment (if necessary) and is inspected to ensure the weld quality and dimensional accuracy meet the required standards.

Key Features and Benefits

1. High Thermal Efficiency:

   • The helically wound fins provide a large surface area, enhancing heat transfer efficiency.
   • The strong metallurgical bond ensures excellent thermal conductivity between the tube and fins.

2. Durability and Strength:

   • The ASME SA213 T12 material ensures the tube can withstand high temperatures and pressures.
   • The high-frequency welded fins are firmly attached, providing resistance to vibration and mechanical stress.

3. Corrosion and Oxidation Resistance:

   • The chromium and molybdenum content in the T12 material enhances its resistance to corrosion and oxidation, making it suitable for harsh environments.

4. Customizable Design:

   • Fins can be customized in terms of height, thickness, and pitch to meet specific application requirements.
   • Tubes are available in various lengths and diameters.

5. Cost-Effective Solution:

   • High-frequency welding reduces manufacturing costs without compromising quality.
   • The enhanced heat transfer efficiency allows for more compact and efficient heat exchanger designs.

Applications

ASME SA213 T12 high-frequency welding fin tubes are used in a wide range of applications, including:

1. Power Plants:

   • Economizers, superheaters, and reheaters in boilers.
   • Heat recovery steam generators (HRSGs) in combined cycle power plants.

2. Petrochemical Industry:

   • Heat exchangers in refineries and chemical plants.
   • Air-cooled heat exchangers and condensers.

3. Chemical Processing:

   • Heat recovery systems.
   • Process heaters and coolers.

4. Other Industries:

   • Waste heat recovery systems.
   • HVAC systems in large industrial facilities.

Why Choose ASME SA213 T12 High-Frequency Welding Fin Tubes?

• High reliability and long service life in demanding environments.
• Excellent performance in high-temperature and high-pressure conditions.
• Cost-effective heat transfer solution with superior efficiency.
• Manufactured to the highest standards, ensuring safety and performance.