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 , GMAW, LASER |
| 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 , GMAW, LASER | 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 | ||
| High Light | HFW Fin Tube ，ASTM A335 P22 Fin Tube ，Alloy Steel Seamless Fin Tube | ||
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
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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