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| Brand Name: | YUHONG |
| MOQ: | 200-500KGS |
| Price: | Negotiable |
| Payment Terms: | L/C,T/T，AT SIGHT |
| Supply Ability: | According to Clients' requirements |
The ASME SA335 P22 Alloy Steel HFW Solid Finned Tube with 11-13Cr Fins is a specialized heat exchanger component designed for high-performance applications, particularly in boilers and other heat transfer systems. This tube combines the excellent thermal conductivity of alloy steel with the added heat dissipation capabilities provided by the solid fins. The ASME SA335 P22 material is a chromium-molybdenum alloy steel that is known for its ability to withstand high temperatures and pressure, making it ideal for use in critical boiler systems. The 11-13Cr fins enhance the heat exchange process by increasing the surface area available for heat transfer.
In this tube, the fins are welded to the outer surface of the tube using high-frequency welding (HFW) techniques, ensuring a robust and durable construction that can handle both high mechanical stresses and thermal loads. The combination of P22 alloy steel and 11-13Cr fins makes this product a reliable choice for industries where heat exchange efficiency and material strength are paramount.
| Bare Tube Diameter:16-219mm | |||
| Fin Height::5-30mm |
Fin Thickness: 0.8-3mm |
Fin Pitch: 3-25mm | Tube Ends: Plain Ends / Beveled Ends |
| No Fin Area (Both Ends): As Customer’s Request and Drawing | |||
| ASTM A335 P22 Chemical Composition(%) | |||||||
| Element | C | Si | Cr | Mn | P | Mo | S |
| Range | 0.05-0.15 | ≤0.50 | 1.90-2.6 | 0.30-0.60 | ≤ 0.025 | 0.87-1.13 | ≤0.025 |
| ASTM 11-13Cr Chemical Composition(%) | |||||||
| Element | C | Si | Cr | Mn | P | Mo | S |
| Range | ≤ 0.15 | ≤ 1.00 | 11.0 ~-13.0 | ≤ 1.00 | ≤ 0.040 | 0.87-1.13 | ≤ 0.030 |
| ASTM A335 P22 Mechanical Properties | |||
| Tensile Strength | Yield Strength | Hardness | Elongation |
| 415MPa | ≥205MPa | ≤ 163HB | ≥30% |
This finned tube is engineered for critical heat transfer applications in:
● Power Generation: Boiler economizers, air preheaters, and steam generators in coal-fired, gas-fired, and waste-to-energy plants .
● Petrochemical Industry: Heat exchangers and process heaters handling corrosive fluids and high-temperature gases .
● Industrial Boilers: Waste heat recovery systems, where efficient heat transfer and corrosion resistance reduce operational costs .
● Chemical Processing: Equipment requiring resistance to oxidation and thermal cycling .
A:Company Competitiveness:
Yuhong Holding Group has more than 35 years experience for steel pipe and tube , fin tube , main application for Petrochemical , Oil refinary, Furnace, heating, boiler, heat exchanger, air cooler,.., till now YUHONG brand products already exported more than 85 countries, which like UK, ITALY, SPAIN , USA, MEXICO , COLOMBIA , BRAZIL, SAUDI ARANBIA , OMAN, QATAR, U.A.E, KOREA, ...., YUHONG brand already won good reputation in the market.
B:Product Competitiveness:
● Enhanced Heat Transfer Efficiency: The helical solid fins increase surface area by 4-5 times compared to bare tubes, while HFW ensures low contact thermal resistance for optimal heat exchange .
● Durability Under Extremes: SA335 P22’s creep resistance and 11-13Cr’s corrosion resistance enable continuous operation at high temperatures (up to 600°C) and pressures .
● Superior Weld Quality: HFW minimizes heat-affected zones, preventing oxidation and ensuring strong, reliable fin-to-tube bonds that withstand vibration and thermal stress .
● Cost-Effective Performance: Reduced maintenance needs and longer service life lower total ownership costs, while compact design saves installation space .
