Place of Origin:
China
Brand Name:
YUHONG
Certification:
ISO 9001-2015,etc.
Model Number:
HFW High Frequency Welding Finned Tubes
HFW (High-Frequency Welded) denotes the advanced welding process used to bond fins tightly to the base tube, ensuring superior structural integrity and thermal conductivity. These finned tubes are designed to maximize heat transfer efficiency in harsh petrochemical environments involving high temperatures, high pressures, and corrosive flue gases. High-frequency welding creates a uniform, high-strength weld seam that resists vibration, thermal expansion, and contraction in cyclic heating/cooling furnace conditions. The fins are not prone to loosening or detachment, ensuring reliable operation over a service life of 10–15 years under standard maintenance.
P22 HFW finned tubes are high-performance heat transfer components designed specifically for furnaces in the petrochemical industry, including batch furnaces, reformers, and hydrogenation furnaces. P22 refers to low-alloy steel conforming to ASTM A335 standards, which has extremely high strength, creep resistance, and oxidation resistance.So, it's a ideal option for long-term operation in petrochemical furnace radiant and convection sections without deformation or failure.P22 steel forms a dense oxide film on its surface at high temperatures, effectively resisting the oxidation of flue gas.
Chemical Composition UNS K21590
| Carbon % | Manganese % | Phosphorus % | Sulfur % | Silicon % | Chromium % | Molybdenum % |
|---|---|---|---|---|---|---|
| 0.05-0.15 | 0.30-0.60 | 0.025 | 0.025 | 0.50max | 1.90-2.60 | 0.87-1.13 |
| Tensile Strength, min | Yield Strength, min | Elongation in 2" or 50mm, min |
|---|---|---|
| 60ksi (415 MPa) | 30ksi (205 MPa) | Longitudinal:30%; Transverse:20% |
Key Petrochemical Furnace Systems
Cracking Furnaces: Applied in convection sections to preheat feedstock (naphtha, ethane) and recover waste heat from flue gases, improving cracking efficiency and yield of ethylene, propylene, and other olefins.
Reforming Furnaces: Utilized in radiant and convection zones for naphtha reforming processes, providing stable heat transfer to produce high-octane gasoline components and hydrogen.
Hydrogenation Furnaces: Employed to heat hydrogen and feedstock mixtures in hydrodesulfurization and hydrocracking units, withstanding high-pressure hydrogen environments and ensuring safe, efficient desulfurization and upgrading of heavy oils.
Heat Recovery Steam Generators (HRSG): Integrated with petrochemical furnaces to recover waste heat from flue gases and generate steam, achieving energy recycling and reducing carbon emissions.
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