YUHONG HOLDING GROUP CO., LTD
| Payment Terms | TT, LC |
| Delivery Time | 7days |
| Packaging Details | plastic woven bags, ply-wooden case with iron steel case |
| Base Pipe Material | P9, P22 |
| Application | Boiler, Economizer |
| Length | Max.: 34m/pc |
| Welding Type | HFW , serrated |
| Production Process | Cold Drawn |
| Fin Wall Thickness | 0.8-3mm |
| Fin Material Grade | 11Cr |
| Fin Thick | 0.8mm-3mm |
| Brand Name | Yuhong |
| Model Number | ASTM A335 P22 |
| Certification | ABS, BV, DNV, CCS, LR |
| Place of Origin | China |
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Product Specification
| Payment Terms | TT, LC | Delivery Time | 7days |
| Packaging Details | plastic woven bags, ply-wooden case with iron steel case | Base Pipe Material | P9, P22 |
| Application | Boiler, Economizer | Length | Max.: 34m/pc |
| Welding Type | HFW , serrated | Production Process | Cold Drawn |
| Fin Wall Thickness | 0.8-3mm | Fin Material Grade | 11Cr |
| Fin Thick | 0.8mm-3mm | Brand Name | Yuhong |
| Model Number | ASTM A335 P22 | Certification | ABS, BV, DNV, CCS, LR |
| Place of Origin | China |
The ASTM A335 P22 HFW Fin Tube is a high-temperature alloy steel tube with high frequency welded (HFW) fins, designed for use in industrial furnaces, heaters, and boilers. The P22 alloy offers superior thermal strength, oxidation resistance, and creep resistance, making it suitable for continuous operation under extreme heat and pressure.
| Element | Composition (%) |
|---|---|
| Carbon (C) | 0.05–0.15 |
| Manganese (Mn) | 0.30–0.60 |
| Phosphorus (P) | ≤ 0.025 |
| Sulfur (S) | ≤ 0.025 |
| Chromium (Cr) | 1.90–2.60 |
| Molybdenum (Mo) | 0.87–1.13 |
| Element | Composition (%) |
|---|---|
| Chromium (Cr) | 11.0–13.0 |
| Carbon (C) | ≤ 0.08 |
| Manganese (Mn) | ≤ 1.0 |
| Silicon (Si) | ≤ 1.0 |
| Phosphorus (P) | ≤ 0.040 |
| Sulfur (S) | ≤ 0.030 |
| Property | Value |
|---|---|
| Tensile Strength | ≥ 415 MPa |
| Yield Strength | ≥ 205 MPa |
| Elongation | ≥ 30% |
| Hardness | ≤ 163 HB |
| Property | Value |
|---|---|
| Tensile Strength | Approx. 450–600 MPa |
| Yield Strength | Approx. 250–350 MPa |
| Hardness | 150–180 HB |
| Heat Resistance | Up to 600°C (continuous) |
Superior heat transfer performance for high-temperature gas environments.
High mechanical strength and creep resistance for prolonged service at elevated temperatures.
Excellent weldability and structural stability due to the seamless tube and HFW fin bonding.
Corrosion and oxidation resistance ensures durability in aggressive heating environments.
Location: The upper part of the furnace, after the radiant section.
Function: This section uses convection heat transfer from hot flue gases to heat up the working fluid (such as steam, oil, or gas) inside the finned tubes.
Why P22 Fin Tubes:
High thermal conductivity of fins increases surface area → better heat transfer.
Alloy P22 resists thermal stress, oxidation, and creep, making it ideal for continuous high-temperature exposure.
Conditionally, if the radiant section has lower radiant intensity or is partially shielded, these fin tubes may also be used here to recover radiant + convective heat.
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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