YUHONG HOLDING GROUP CO., LTD
| Payment Terms | L/C,T/T |
| Supply Ability | 1000 tons per month |
| Delivery Time | According to the qty |
| Packaging Details | Ply-wooden case with iron frame |
| Ndt | Hydrostatic Test, PT |
| Base Tubes Standard | ASTM A335 |
| Type | High Frequency Welding Fin Tubes |
| Application | Convection coil |
| Fin Mat | 11-13CR |
| Fin Thickness | 1.5mm |
| Fin Height | 15.875mm |
| Packing | Ply-wooden case with iron frame |
| Brand Name | Yuhong |
| Model Number | A335 P22 |
| Certification | ABS, BV, CCS, LR,DNV |
| Place of Origin | China |
View Detail Information
Explore similar products
High Frequency Welding Fin Tube , U Bend Type (U Bend Fin Tube),SA213 T9 And
Welding Fin Tube , Serrated Type, ASME SA106 Gr.B Seamless Pipe With CS Fin
High Frequency Welding Base Tube ASTM A312 TP304 Fin Material ASTM A240 SS 304
Welding Fin Tube, Serrated Type, Base Tube ASTM A355 GR P9, Fin Material 11Cr,
Product Specification
| Payment Terms | L/C,T/T | Supply Ability | 1000 tons per month |
| Delivery Time | According to the qty | Packaging Details | Ply-wooden case with iron frame |
| Ndt | Hydrostatic Test, PT | Base Tubes Standard | ASTM A335 |
| Type | High Frequency Welding Fin Tubes | Application | Convection coil |
| Fin Mat | 11-13CR | Fin Thickness | 1.5mm |
| Fin Height | 15.875mm | Packing | Ply-wooden case with iron frame |
| Brand Name | Yuhong | Model Number | A335 P22 |
| Certification | ABS, BV, CCS, LR,DNV | Place of Origin | China |
| High Light | ASTM A335 P22 seamless pipe ，solid fin tube convection coil ，11-13CR alloy steel pipe | ||
The ASTM A335 P22 Alloy Steel Seamless Pipe with 11-13% chromium fins is specifically designed for high-temperature heat transfer applications in convection coils within furnaces, heaters, and power plant systems. The seamless base pipe is made of P22 alloy steel, offering excellent strength and creep resistance under high pressure and temperature. The 11-13Cr fins provide enhanced corrosion resistance, especially in flue gas environments, making it ideal for high-temperature heat exchangers and economizers.
| Element | Content (%) |
|---|---|
| C | 0.05–0.15 |
| Mn | 0.30–0.60 |
| P | ≤ 0.025 |
| S | ≤ 0.025 |
| Si | 0.50–1.00 |
| Cr | 1.90–2.60 |
| Mo | 0.87–1.13 |
| Fe | Balance |
| Element | Content (%) |
|---|---|
| Cr | 11.0–13.0 |
| C | ≤ 0.12 |
| Si | ≤ 1.0 |
| Mn | ≤ 1.0 |
| Fe | Balance |
| Property | Value |
|---|---|
| Tensile Strength | ≥ 415 MPa |
| Yield Strength | ≥ 205 MPa |
| Elongation | ≥ 30% |
| Hardness | ≤ 192 HB |
| Max Operating Temp | ~ 600°C (1112°F) |
High-Temperature Strength
P22 alloy steel provides excellent creep resistance and high-temperature stability, making it ideal for furnace and high-temperature heat exchanger systems.
Enhanced Corrosion Resistance
The 11-13% chromium fins offer outstanding oxidation resistance and corrosion resistance in high-temperature flue gas environments, extending the service life of the convection coil.
Improved Heat Transfer
Fins increase the external surface area for efficient heat dissipation, improving the overall thermal efficiency of convection coils.
Durability
The combination of P22 alloy steel for the base tube and chromium steel fins ensures durability in harsh operating conditions, including thermal cycling and mechanical stress.
Resistance to Thermal Fatigue
Designed for continuous duty and frequent thermal cycles, making it ideal for furnace and economizer applications where rapid heating and cooling cycles occur.
The Alloy Steel Seamless Pipe, ASTM A335 P22 with 11-13Cr Fins is used in:
Convection Coils in Furnaces
These tubes are primarily used in the convection zone of fired heaters, where heat is transferred from flue gases to process fluids, such as water or steam.
Heat Recovery Steam Generators (HRSGs)
In combined cycle power plants, they recover waste heat from exhaust gases to generate steam.
Boiler Economizers
Preheating feedwater using flue gas heat recovery before it enters the boiler for further steam generation.
Superheaters & Reheaters
Used in power plants for steam superheating and reheating applications where high-pressure steam is essential for driving turbines.
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...
Get in touch with us
Leave a Message, we will call you back quickly!