YUHONG HOLDING GROUP CO., LTD
| Base Tube Specification&Material | ASTM A335 P22 |
| Application Industries | HRSG and Economizers |
| Delivery Time | 35-60 Days (Depend on Customer's Requirements) |
| Base Tube O.D. | 16~219 mm |
| Fin Pitch | 3~25 mm |
| Fin Thickness | 0.8~3mm |
| Fin Height | 5~30 mm |
| Supply Ability | According to Clients' requirements |
| Fin material | Alloy Steel/Carbon Steel |
| Payment Terms | TT, LC |
| Product Name | HFW Serreted Finned Tube |
| Packaging Details | Ply-wooden Cases with Steel Frames and Pipe's both ends with plastic caps |
| Brand Name | YUHONG |
| Certification | ABS, BV, DNV, CCS, LR |
| Model Number | ASTM A335 P22 HFW Serrated Finned Tube with Alloy Steel Fins |
| Place of Origin | China |
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ASTM A335 P22 Serrated Finned Tubes for HRSG Applications
Product Specification
| Base Tube Specification&Material | ASTM A335 P22 | Application Industries | HRSG and Economizers |
| Delivery Time | 35-60 Days (Depend on Customer's Requirements) | Base Tube O.D. | 16~219 mm |
| Fin Pitch | 3~25 mm | Fin Thickness | 0.8~3mm |
| Fin Height | 5~30 mm | Supply Ability | According to Clients' requirements |
| Fin material | Alloy Steel/Carbon Steel | Payment Terms | TT, LC |
| Product Name | HFW Serreted Finned Tube | Packaging Details | Ply-wooden Cases with Steel Frames and Pipe's both ends with plastic caps |
| Brand Name | YUHONG | Certification | ABS, BV, DNV, CCS, LR |
| Model Number | ASTM A335 P22 HFW Serrated Finned Tube with Alloy Steel Fins | Place of Origin | China |
| High Light | ASTM A335 P22 serrated finned tube ，HFW serrated finned tube for HRSG ，AS fins serrated tube for economizers | ||
ASTM A335 P22 HFW Serrated Finned Tube with AS Fins For HRSG and Economizers
It is a high-efficiency heat transfer component for high-temperature/pressure industrial service, consisting of a ASTM A335 P22 seamless alloy steel base tube with alloy steel serrated fins helically wound and bonded via HFW (High-Frequency Welded). It excels in heat transfer, fouling resistance, and structural integrity, widely used in power, petrochemical, and refinery heat exchangers.
1. Base Tube: ASTM A335 P22 seamless pipes
(1) Chemical Composition (Weight %) of ASTM A335 P22
| Element | Minimum | Maximum |
| Carbon (C) | 0.05 | 0.15 |
| Manganese (Mn) | 0.30 | 0.60 |
| Silicon (Si) | — | 0.50 |
| Chromium (Cr) | 1.90 | 2.60 |
| Molybdenum (Mo) | 0.87 | 1.13 |
| Phosphorus (P) | — | 0.025 |
| Sulfur (S) | — | 0.025 |
(2) Mechanical Properties (Room Temperature, Normalized + Tempered) of ASTM A335 P22
| Property | Requirement |
| Tensile Strength | 415 – 585 MPa (60,000 – 85,000 psi) |
| Yield Strength (0.2% Offset) | ≥ 205 MPa (30,000 psi) |
| Elongation in 50 mm | ≥ 30% |
| Charpy V-Notch Impact Energy | ≥ 27 J (20 ft-lbf) at −20 °C |
| Brinell Hardness (HBW) | ≤ 228 |
2. Fin Type: HFW Serrated Fins
Fin Material: Alloy Steel (Typically 11-13% Chromium Steel)
The component functions as a "hybrid" heat transfer device. The P22 alloy steel base tube is a pressure-containing part, designed to safely carry high-temperature fluids like steam or process oils. The serrated alloy steel fins are the heat exchange surface. Hot flue gases flowing over the outside of the tubes transfer their heat to the fins, which then efficiently conduct it to the tube and the fluid inside.
3. Performance Advantages
Applications of ASTM A335 P22 HFW Serrated Finned Tube (Alloy Steel Fins)
1. Power Plant Equipment
Boilers (water-wall panels, economizers)
Superheaters & Reheaters
Waste heat recovery units
Air preheaters
2. Petrochemical & Refinery Industry
High-temperature heat exchangers
Hydrogen processing units
Furnace coils & convection sections
Reformers & cracking units
3. Energy & Industrial Heat Recovery
Waste heat boilers
Combined heat and power (CHP) systems
Thermal oil heaters
Industrial waste heat recovery systems
4. Chemical & Process Plants
High-temperature/pressure process heat exchangers
Units exposed to creep, oxidation, and thermal cycling
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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