Alloy Steel ASME SA335 P9 Seamless Studded Fin Tube For Heater

Introduction

The Studded Fin Tube manufactured from ASME SA335 P9 alloy steel seamless tube is engineered specifically for high-temperature heating systems. Designed for use in industrial heaters, furnaces, and power plant boilers, this product offers exceptional performance under high-pressure and oxidizing atmospheres. The studded fins, formed by precision welding alloy steel studs directly onto the tube surface, significantly increase heat transfer area, enhancing overall thermal efficiency.

• Material:

• Alloy Steel (ASME SA335 P9):
  This is a high-strength, chromium-molybdenum alloy steel designed for use in high-temperature environments (like power plants or industrial boilers). P91 is specifically known for its excellent creep strength at high temperatures and good oxidation resistance.

• Seamless:
  The tube is seamless, meaning it is manufactured without a welded seam, offering improved strength, safety, and resistance to pressure.

• High-Frequency Welding:
  This refers to the method used to weld the fins to the tube. High-frequency welding uses high-frequency electric currents to bond materials together, ensuring strong, durable joints, which is crucial for heat transfer efficiency.

• Fin Tube:
  A finned tube is designed to increase the surface area for heat exchange, improving the efficiency of the heater or cooler. The fins are typically welded or mechanically attached to the tube and are used to enhance the heat transfer process.

• Application:
  This type of tube is commonly used in heaters or heat exchangers, especially where there is a need to maximize heat dissipation or absorption. Common uses include industrial heaters, boilers, and air coolers.

Chemical Composition and Mechanical Properties

Base Tube: ASTM A335 P9 Alloy Steel

Fin Material: 13Cr Stainless Steel

Applications of Alloy Steel ASME SA335 P9 Seamless Studded Fin Tube

1. Power Plants:
   Used in power plants, particularly in high-temperature sections like steam generators, reheaters, and superheaters, due to its excellent strength at elevated temperatures.

2. Heat Exchangers:
   Ideal for use in heat exchangers, where efficient heat transfer and resistance to thermal cycling are crucial.

3. Industrial Boilers:
   Used in the construction of industrial boilers, where the alloy steel's resistance to creep and corrosion at high temperatures ensures reliability and longevity.

4. Oil and Gas Industry:
   Commonly applied in the oil and gas sector for equipment that requires heat transfer efficiency in extreme conditions.

5. Air Coolers:
   In air coolers, the finned design improves heat dissipation, enhancing the performance of cooling systems.