Yuhong Group Co.,Ltd
| Payment Terms | L/C,T/T |
| Supply Ability | 1000 tons per month |
| Delivery Time | according to the qty |
| Packaging Details | Ply-woon case with iokcirame |
| Type Of Fin | studded |
| Pressure Resistance | High |
| Finned Tube Packing | Ply-wooden Case With Iron Frame |
| Material | ASTM A335 P9 |
| Product | Fin Tube |
| Heat Transfer Performance | Excellent |
| Packing | Plywood case/Iron case |
| Fin dia. | 12.7mm |
| Fin Thickness Tolerance | Customized |
| Brand Name | Yuhong |
| Model Number | ASTM A335 P9 |
| Certification | ABS, CCV, BV, LR |
| Place of Origin | China |
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Product Specification
| Payment Terms | L/C,T/T | Supply Ability | 1000 tons per month |
| Delivery Time | according to the qty | Packaging Details | Ply-woon case with iokcirame |
| Type Of Fin | studded | Pressure Resistance | High |
| Finned Tube Packing | Ply-wooden Case With Iron Frame | Material | ASTM A335 P9 |
| Product | Fin Tube | Heat Transfer Performance | Excellent |
| Packing | Plywood case/Iron case | Fin dia. | 12.7mm |
| Fin Thickness Tolerance | Customized | Brand Name | Yuhong |
| Model Number | ASTM A335 P9 | Certification | ABS, CCV, BV, LR |
| Place of Origin | China | ||
| High Light | ASTM A335 P9 alloy steel pipe ，studded fin tube for furnace ，seamless alloy steel fin tube | ||
The ASTM A335 P9 Alloy Steel Studded Fin Tube is designed for high-temperature furnace applications where effective heat transfer and durability under extreme conditions are crucial. The P9 alloy steel base tube is equipped with studs (carbon or alloy steel) welded onto the surface to create a studded fin configuration. This design increases the heat transfer area and enhances gas-side heat transfer in furnace tubes, making it ideal for convection sections and superheating zones in fired heaters and industrial furnaces.
| Element | Content (%) |
|---|---|
| C | 0.05–0.15 |
| Mn | 0.30–0.60 |
| P | ≤ 0.025 |
| S | ≤ 0.025 |
| Si | 0.50–1.00 |
| Cr | 8.00–10.00 |
| Mo | 0.87–1.13 |
| Fe | Balance |
Stud Size: Usually in a cylindrical shape (6–10 mm diameter, 10–20 mm height)
Stud Material: Carbon Steel (Q235B) or Alloy Steel (P11 or P22)
| Property | Value |
|---|---|
| Tensile Strength | ≥ 415 MPa |
| Yield Strength | ≥ 205 MPa |
| Elongation | ≥ 30% |
| Hardness | ≤ 192 HB |
| Max. Operating Temp | ~ 600°C (1112°F) |
Increased Heat Transfer Efficiency
The studs enhance heat transfer by increasing the effective surface area, ensuring better gas-to-fluid heat exchange in high-velocity air or flue gas environments.
High-Temperature Performance
P9 alloy steel provides excellent creep resistance and oxidation resistance, making it perfect for furnace applications with sustained high-temperature exposure.
Durability in Harsh Environments
The combination of P9 alloy steel and studded fins ensures resistance to high pressures, thermal shock, and mechanical stresses, ideal for use in industrial furnaces.
Superior Mechanical Bonding
The welded studs are robustly attached to the tube, providing excellent resistance to detachment under thermal cycling or vibration.
Improved Fouling Resistance
The studded design reduces the chance of debris or soot build-up on the fin surface, minimizing maintenance and cleaning efforts.
This product is widely used in:
Furnace Convection Coils
In petrochemical refineries, gas turbines, and power plants, where heat recovery from flue gases is necessary.
Industrial Boilers
In both fire-tube and water-tube boiler systems to enhance heat transfer.
Superheaters & Reheaters
In thermal power plants to improve the heat recovery from exhaust gases and enhance system efficiency.
Waste Heat Recovery Systems (WHRU)
Effective in recovering energy from flue gases to improve overall system efficiency in industries.
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Importer,Exporter,Trading Company,Seller,Other
Year Established:
2007
Total Annual:
50M-70M
Employee Number:
50~850
Ecer Certification：
Verified Supplier
YUHONG HOLDING GROUP is one of the largest Procurement, Engineering & Contracting Group companies in China. Our group branch company and factory have been already approved by : ABS, LR, DNV, GL, BV, CCS, KR, PED 97/23/EC, AD2000-WO, GOST9941-81, CCS, TS, CNNC, ISO9... YUHONG HOLDING GROUP is one of the largest Procurement, Engineering & Contracting Group companies in China. Our group branch company and factory have been already approved by : ABS, LR, DNV, GL, BV, CCS, KR, PED 97/23/EC, AD2000-WO, GOST9941-81, CCS, TS, CNNC, ISO9...
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