YUHONG HOLDING GROUP CO., LTD
| Payment Terms | L/C, T/T |
| Supply Ability | 1000 ton/month |
| Delivery Time | 7-45DAYS |
| Packaging Details | Ply-wooden Case /Iron Case/ Bundle with Plastic Cap |
| Packing | Ply-wooden Case With Iron Frame |
| Fin Wall Thickness | 0.8-3mm |
| Fins Height | 10.875mm |
| Test | HT, ET |
| Tube Shape | Round |
| Heat Transfer Efficiency | Excellent |
| Pressure Resistance | High |
| Fin Material Grade | 11-13Cr |
| Brand Name | Yuhong |
| Model Number | ASME SA335 P22 |
| Certification | ABS, BV, ISO, ASTM, SGS |
| Place of Origin | China |
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Product Specification
| Payment Terms | L/C, T/T | Supply Ability | 1000 ton/month |
| Delivery Time | 7-45DAYS | Packaging Details | Ply-wooden Case /Iron Case/ Bundle with Plastic Cap |
| Packing | Ply-wooden Case With Iron Frame | Fin Wall Thickness | 0.8-3mm |
| Fins Height | 10.875mm | Test | HT, ET |
| Tube Shape | Round | Heat Transfer Efficiency | Excellent |
| Pressure Resistance | High | Fin Material Grade | 11-13Cr |
| Brand Name | Yuhong | Model Number | ASME SA335 P22 |
| Certification | ABS, BV, ISO, ASTM, SGS | Place of Origin | China |
| High Light | ASME SA335 P22 alloy steel seamless pipe ，serrated fin tube for HRSG system ，seamless serrated finned tube | ||
ASME SA335 P22 Alloy Steel Seamless Pipe Serrated Fin Tube For HRSG System
Product Description
ASME SA335 P22 alloy steel seamless pipe serrated fin tube is manufactured by attaching serrated fin strips onto the base tube surface through high-frequency welding (HFW). The serrated fins are slit along their length to create small interruptions, which significantly improve turbulence and heat transfer efficiency. This makes the product highly suitable for Heat Recovery Steam Generator (HRSG) systems, boilers, and furnaces, where high-temperature and high-pressure performance is essential.
| Element | C | 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 |
| Property | Requirement |
|---|---|
| Tensile Strength | ≥ 415 MPa |
| Yield Strength | ≥ 205 MPa |
| Elongation | ≥ 30% |
| Hardness | ≤ 163 HB |
Enhanced heat transfer: serrated fins break boundary layers, improving heat transfer efficiency
High-temperature resistance: P22 alloy steel performs well in elevated temperature environments
Strong metallurgical bonding: HFW ensures excellent fin-to-tube attachment strength
Durability: withstands oxidation, creep, and thermal cycling in HRSG systems
Optimized for waste heat recovery and HRSG systems
Higher efficiency compared with solid fins due to turbulence effect
Reliable long-term performance under high pressure and temperature
Cost-effective solution for large-scale power plant applications
Applications
HRSG systems in power plants
Waste heat recovery boilers
Petrochemical and refinery heaters
Industrial furnaces and process heaters
Economizers and superheaters
Company Details
Business Type:
Manufacturer,Importer,Exporter,Trading Company,Seller,Other
Year Established:
1990
Total Annual:
50M-70M
Employee Number:
50~800
Ecer Certification：
Verified Supplier
Yuhong Holding Group has more than 35 years experience for pipeline products, till now we have 3 big joint venture factories, the total production area more than 130000 square meters, and more than 600 workers with 106 production lines give our clients excellent supporting always. &n... Yuhong Holding Group has more than 35 years experience for pipeline products, till now we have 3 big joint venture factories, the total production area more than 130000 square meters, and more than 600 workers with 106 production lines give our clients excellent supporting always. &n...
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