Studded Fin Pipe Alloy Steel Finned Pipe ASTM A213 T9 Carbon Steel Fin For Furnace

ASTM A213 T9 studded finned tubes are high-performance heat transfer tubes used primarily in heat exchanger applications. These tubes are designed with fins that are mechanically bonded or welded onto the base tube to increase the surface area for better heat transfer efficiency. The base tube, made of ASTM A213 T9 alloy steel, provides excellent high-temperature resistance and mechanical strength, making it suitable for demanding industrial environments.

Base Tube Information

Chemical Composition

ASTM A213 T9 is a seamless ferritic and austenitic alloy steel tube. The typical chemical composition is as follows:

• Carbon (C): 0.08% - 0.18%
• Manganese (Mn): 0.30% - 0.60%
• Phosphorus (P): ≤ 0.025%
• Sulfur (S): ≤ 0.025%
• Silicon (Si): 0.50% max
• Chromium (Cr): 8.00% - 10.00%
• Molybdenum (Mo): 0.90% - 1.10%

Mechanical Properties

The mechanical properties of ASTM A213 T9 tubes ensure they can withstand high temperatures and mechanical stresses. Key mechanical properties include:

• Tensile Strength: Minimum 415 MPa (60,200 psi)
• Yield Strength: Minimum 205 MPa (29,700 psi)
• Elongation: Minimum 30% in 2 inches (50 mm)
• Hardness: Maximum 163 HB

Advantages

1. Enhanced Heat Transfer: Finned design significantly increases the surface area, enhancing heat transfer efficiency.
2. High-Temperature Resistance: The base tube's alloy composition provides excellent performance in high-temperature environments.
3. Corrosion Resistance: Chromium and molybdenum content in the base tube enhances resistance to oxidation and corrosion.
4. Mechanical Strength: High tensile and yield strength ensure durability and reliability under mechanical stress.
5. Longevity: Superior material properties ensure a longer operational life, reducing maintenance needs and downtime.

Applications

1. Heat Exchangers: Widely used in various types of heat exchangers for efficient thermal management.
2. Power Plants: Essential in boilers, superheaters, and economizers for efficient power generation.
3. Petrochemical Industry: Utilized in refineries and chemical processing plants for high-temperature processes.
4. Oil and Gas Industry: Employed in offshore and onshore applications for heat transfer in drilling and production operations.
5. HVAC Systems: Used in industrial HVAC systems for effective heating and cooling.
6. Furnaces: Integral in industrial furnaces and kilns for efficient heat transfer.

Conclusion

ASTM A213 T9 studded finned tubes are essential components in industries that require efficient heat transfer at high temperatures. The combination of a high-performance alloy base tube and an enhanced surface area from the fins provides superior thermal conductivity, mechanical strength, and corrosion resistance. These properties make them ideal for use in heat exchangers, power plants, petrochemical facilities, and other high-demand applications.