YUHONG HOLDING GROUP CO., LTD
| Payment Terms | TT, LC |
| Supply Ability | According to Clients' requirements |
| Delivery Time | 45-75 Days (Depend on Customer's Requirements) |
| Packaging Details | Ply-wooden Cases with Steel Frames(both ends of pipes have plastic caps) |
| Product Name | ASTM A335 P9 HFW Solid Finned Tube With CS Fins |
| Base Pipe Specification&Material | ASTM A335 P9 |
| Fin Type | Spiral High Frequency Welding Finned Tube/Solid Finned Tube |
| Fin Material | Carbon Steel |
| Base Tube/Pipe OD | 15.88-230 mm |
| Fin Pitch | 3-25 mm |
| Fin Height | 5-30 mm |
| Fin Thickness | 0.8-3 mm |
| Pipe Length | Customsized |
| Application | Heat exchangers, Boilers, superheaters, and economizers... |
| Brand Name | Yuhong |
| Model Number | ASTM A335 P9 HFW Solid Finned Tube With CS Fins |
| Certification | ABS, BV, DNV, CCS, LR |
| Place of Origin | China |
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Product Specification
| Payment Terms | TT, LC | Supply Ability | According to Clients' requirements |
| Delivery Time | 45-75 Days (Depend on Customer's Requirements) | Packaging Details | Ply-wooden Cases with Steel Frames(both ends of pipes have plastic caps) |
| Product Name | ASTM A335 P9 HFW Solid Finned Tube With CS Fins | Base Pipe Specification&Material | ASTM A335 P9 |
| Fin Type | Spiral High Frequency Welding Finned Tube/Solid Finned Tube | Fin Material | Carbon Steel |
| Base Tube/Pipe OD | 15.88-230 mm | Fin Pitch | 3-25 mm |
| Fin Height | 5-30 mm | Fin Thickness | 0.8-3 mm |
| Pipe Length | Customsized | Application | Heat exchangers, Boilers, superheaters, and economizers... |
| Brand Name | Yuhong | Model Number | ASTM A335 P9 HFW Solid Finned Tube With CS Fins |
| Certification | ABS, BV, DNV, CCS, LR | Place of Origin | China |
| High Light | CS Fins Solid Finned Tube ，CS Solid Finned Tube ，HFW Solid Finned Tube | ||
ASTM A335 P9 HFW Solid Finned Tube With CS Fins For Boilers and Economizers
ASTM A335 P9 HFW Solid Finned Tube with CS Fins refers to a specialized type of heat exchanger tube designed for high-temperature and high-pressure applications. Here's a breakdown of its components and features:
1. ASTM A335 P9
This is a standard specification for seamless ferritic alloy-steel pipes for high-temperature service.
(1). Chemical Composition of ASTM A335 P9 (Weight %)
| Element | Composition (%) |
| Carbon (C) | 0.15 max |
| Manganese (Mn) | 0.30 – 0.60 |
| Phosphorus (P) | 0.025 max |
| Sulfur (S) | 0.025 max |
| Silicon (Si) | 0.50 – 1.00 |
| Chromium (Cr) | 8.00 – 10.00 |
| Molybdenum (Mo) | 0.90 – 1.10 |
| Nickel (Ni) | 0.40 max (residual) |
| Vanadium (V) | 0.18 max (residual) |
Notes:
The alloy is 9% Cr-1% Mo, providing oxidation & creep resistance at high temperatures.
Low carbon content helps with weldability.
(2). Mechanical Properties of ASTM A335 P9
| Property | Value |
| Tensile Strength (min) | 415 MPa (60,000 psi) |
| Yield Strength (min) | 205 MPa (30,000 psi) |
| Elongation (min, %) | 30% (in 50 mm) |
| Hardness (max) | 179 HB (Brinell) / 90 HRB (Rockwell) |
| Allowable Stress (at 600°C / 1112°F) | ~30 MPa (varies by code) |
Notes:
Suitable for high-temperature service (up to ~600°C / 1112°F).
Good creep strength due to chromium-molybdenum content.
(3). Comparison with Other Grades (P11, P22, P91):
2. HFW (High-Frequency Welded)
3. Solid Finned Tube
4. CS (Carbon Steel) Fins
5. Design Advantages:
Primary Applications of ASTM A335 P9 HFW Solid Finned Tube with CS Fins:
1. Power Plants & Boilers
2. Petrochemical & Refineries
3. Chemical Processing
4. Waste Heat Recovery Systems
5. District Heating & HVAC Systems
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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