YUHONG HOLDING GROUP CO., LTD
| Payment Terms | T/T,L/C |
| Supply Ability | 1000 tons per month |
| Delivery Time | 7DAYS |
| Packaging Details | Ply-wooden case with iron frame |
| Fin Type | High Frequency Welding, Serrated |
| Finned Height | 15.875mm |
| Standard | ASTM A335 |
| Corrosion Resistance | High |
| Base Tube Test | HT, ET |
| Application | Furnace |
| Brand Name | Yuhong |
| Model Number | ASTM A335 P11 |
| Certification | ABS, BV, CCS, LR |
| Place of Origin | China |
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Product Specification
| Payment Terms | T/T,L/C | Supply Ability | 1000 tons per month |
| Delivery Time | 7DAYS | Packaging Details | Ply-wooden case with iron frame |
| Fin Type | High Frequency Welding, Serrated | Finned Height | 15.875mm |
| Standard | ASTM A335 | Corrosion Resistance | High |
| Base Tube Test | HT, ET | Application | Furnace |
| Brand Name | Yuhong | Model Number | ASTM A335 P11 |
| Certification | ABS, BV, CCS, LR | Place of Origin | China |
| High Light | ASTM A335 P11 Serrated Fin Tube ，Alloy Steel Serrated Fin Tube ，P11 Serrated Fin Tube | ||
The ASTM A335 P11 alloy steel seamless pipe with serrated fins and Gr.11 steel fins is designed for Heat Recovery Steam Generator (HRSG) systems. The serrated fin design maximizes heat transfer by inducing turbulence in the flue gas, while the Gr.11 steel fins provide excellent high-temperature and corrosion resistance. This tube is specifically suited for HRSG convection sections, where efficient heat recovery from flue gases is critical.
| Element | Content (%) |
|---|---|
| C | 0.05–0.15 |
| Mn | 0.30–0.60 |
| P | ≤ 0.025 |
| S | ≤ 0.025 |
| Si | 0.50–1.00 |
| Cr | 1.00–1.50 |
| Mo | 0.44–0.65 |
| Fe | Balance |
(Usually the same material as the base tube or similar high-temperature alloys)
| Element | Content (%) |
|---|---|
| Cr | 0.90–1.50 |
| Mo | 0.45–0.60 |
| C | ≤ 0.12 |
| Fe | Balance |
| Property | Value |
|---|---|
| Tensile Strength | ≥ 415 MPa |
| Yield Strength | ≥ 205 MPa |
| Elongation | ≥ 30% |
| Hardness | ≤ 192 HB |
| Max Service Temp | Up to 600–650°C |
Enhanced Heat Transfer
Serrated fin design induces turbulence, significantly improving heat transfer efficiency by increasing the surface area and breaking the thermal boundary layer.
High-Temperature Resistance
The Gr.11 steel fins and ASTM A335 P11 base pipe are designed for high-pressure, high-temperature applications, making them ideal for HRSG systems.
Corrosion Resistance
Gr.11 material provides superior oxidation and corrosion resistance under continuous high-heat conditions, ensuring long-lasting performance in the harsh HRSG environment.
Efficient Heat Recovery
Perfect for HRSG systems where heat recovery from exhaust gases needs to be maximized before flue gases exit the system.
Durability in Harsh Environments
The alloy steel base and high-temperature steel fins offer strong mechanical strength and resistance to thermal fatigue.
Primarily used in the convection sections of HRSGs for:
Fired Heaters and Boilers
Steam Generators in combined-cycle power plants
Waste Heat Recovery Units (WHRU)
Economizers and Superheaters
These tubes are essential in waste heat recovery systems where heat needs to be extracted from exhaust gases and used to generate steam or preheat other fluids.
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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