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P22 Serrated Fin Tube High Temp Heat Transfer

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January 30, 2026
Category Connection: Serrated Finned tube
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Tags:
#ASTM A312 Finned Tube #Serrated Spiral Finned Tube #Heat Exchanger Finned Tube
Brief: Follow along for a hands-on demonstration that highlights performance points of ASTM A335 P22 serrated fin tubes. This video showcases how the unique serrated fin design enhances heat transfer efficiency in high-temperature applications. You'll see the construction details and learn about its superior performance in power plant boilers and heat exchangers.
Related Product Features:
  • Manufactured from ASTM A335 P22 chromium-molybdenum alloy steel for high-temperature service.
  • Features serrated (notched) fins that increase turbulence and disrupt boundary layers for enhanced heat transfer.
  • Provides excellent resistance to oxidation, creep, and sulfur attack at elevated temperatures.
  • Suitable for temperatures up to 600°C with robust pressure integrity.
  • Ideal for power generation boilers, petrochemical heaters, and heat recovery steam generators.
  • Available in custom dimensions and fin configurations to meet specific project requirements.
  • Base tube offers minimum tensile strength of 415 MPa and yield strength of 205 MPa.
  • Good weldability and medium-high cost positioning compared to other alloy steel options.
FAQs:
  • What are the key advantages of P22 serrated fin tubes over plain fin tubes?
    P22 serrated fin tubes significantly increase turbulence and disrupt boundary layers, providing enhanced heat transfer efficiency compared to plain fins while maintaining robust pressure integrity in high-temperature environments.
  • What temperature range can ASTM A335 P22 serrated fin tubes withstand?
    ASTM A335 P22 serrated fin tubes are designed for high-temperature service and can withstand temperatures up to 565-600°C, making them suitable for demanding applications in power generation and petrochemical industries.
  • In which applications are P22 serrated fin tubes commonly used?
    These tubes are widely used in power generation boilers (superheaters, reheaters), petrochemical and refinery heaters, heat recovery steam generators (HRSG), and high-temperature heat exchangers in various industrial settings.
  • How does P22 alloy steel compare to P11 and P5 grades?
    P22 offers the best high-temperature strength among the three, with a temperature limit of 565-600°C, while P11 is more cost-effective for general applications and P5 provides better corrosion resistance in high-sulfur environments.
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