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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 |
This product is a High-Frequency Welded (HFW) fin tube made with ASTM A335 P22 alloy steel seamless base tube, combined with a serrated 11–13% Chromium (Cr) alloy fin strip. Designed for use in economizers, especially in high-temperature and high-pressure environments such as power stations and industrial boilers.
| 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) |
Excellent Thermal Conductivity: The HFW bonding ensures low contact resistance between tube and fin for efficient heat transfer.
High-Temperature Resistance: Suitable for operation in elevated temperature environments due to the alloy composition.
Oxidation & Corrosion Resistance: The 11-13Cr fin provides superior resistance to flue gas corrosion and scaling.
Strong Weld Bond: High-frequency welding results in durable and consistent fin attachment, ideal for vibrating environments.
Customizable Fin Geometry: Can be made with serrated or solid fins, and varied fin density, thickness, and height.
Economizers in Power Plants
Waste Heat Recovery Units (WHRU)
Superheated Steam Boilers
Process Heating Systems in Refineries
Industrial Furnaces and Ovens
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