ASME SA335 P22 Alloy Steel Seamless Pipe HFW Solid Fin Tube For HRSG System
ASME SA335 P22 Alloy Steel Seamless Pipe HFW Solid Fin Tube For HRSG System
Product Description
ASME SA335 P22 alloy steel seamless pipe with HFW (High-Frequency Welding) solid fins is a high-performance component designed for Heat Recovery Steam Generator (HRSG) systems in power plants. The P22 grade, containing chromium and molybdenum, provides excellent creep resistance, high-temperature strength, and improved oxidation resistance. The solid fin design enhances heat transfer efficiency while maintaining structural integrity under extreme service conditions.
Chemical Composition (ASME SA335 P22)
| Element | C (max) | Mn | P (max) | S (max) | Si | Cr | Mo |
|---|---|---|---|---|---|---|---|
| Content (%) | 0.05–0.15 | 0.30–0.60 | 0.025 | 0.025 | 0.50–1.00 | 1.90–2.60 | 0.87–1.13 |
Mechanical Properties (ASME SA335 P22)
| Property | Requirement |
|---|---|
| Tensile Strength | ≥ 415 MPa |
| Yield Strength | ≥ 205 MPa |
| Elongation | ≥ 30% |
| Hardness | ≤ 163 HB |
Applications
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HRSG convection and evaporator sections
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Waste heat recovery systems in power generation and petrochemical industries
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High-temperature and high-pressure boilers
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Economizers, superheaters, and reheaters
Advantages
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Excellent high-temperature creep resistance
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Strong corrosion and oxidation resistance in furnace environments
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Long service life under cyclic thermal stresses
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Enhanced heat transfer efficiency through solid fin configuration
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Reliable performance in HRSG and other high-pressure boiler systems
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