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| Categories | Solid Fin Tube |
|---|---|
| Brand Name: | Yuhong |
| Model Number: | ASTM A335 P22 |
| Certification: | ABS, BV, DNV, CCS, LR |
| Place of Origin: | China |
| MOQ: | 100kgs |
| Price: | Negotiable |
| 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 , GMAW, LASER |
| Production Process: | Cold Drawn |
| Fin Wall Thickness: | 0.8-3mm |
| Fin Material Grade: | 11Cr |
| Fin Thick: | 0.8mm-3mm |
| Company Info. |
| YUHONG HOLDING GROUP CO., LTD |
| Verified Supplier |
| View Contact Details |
| Product List |
The ASTM A335 P22 HFW Fin Tube is a high-efficiency heat transfer component, crafted by welding serrated or solid alloy fin strips onto a seamless P22 alloy steel tube using high-frequency resistance welding. It is specifically engineered for economizer coils in power plants, industrial boilers, and waste heat recovery systems, where high temperature and pressure resistance are critical.
| 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: HFW process ensures close bonding between fins and tube, maximizing surface area and thermal performance.
Durability Under Pressure: P22 alloy steel offers high strength and creep resistance, making it suitable for high-pressure steam applications.
Oxidation & Corrosion Resistance: Chromium-molybdenum alloy composition provides strong resistance to oxidation, scaling, and corrosion at elevated temperatures.
Enhanced Lifespan: Serrated fins improve turbulence and cleaning efficiency, reducing fouling and increasing operational life.
Cost Efficiency: Ideal for long-term operation in power plants, reducing maintenance frequency and downtime
Boiler Economizers in Thermal Power Plants
Waste Heat Recovery Boilers (WHRB)
Refinery Heaters and Process Units
Chemical Plant Steam Generators
Industrial Heat Recovery Systems
Preheater Sections of Steam Generating Units
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