YUHONG HOLDING GROUP CO., LTD
| Payment Terms | T/T, L/C AT SIGHT |
| 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) |
| Base Pipe Specification | ASTM A335 |
| Base Pipe Material | P22 |
| Fin Type | Spiral High Frequency Welding Finned Tube/Solid Finned Tube |
| Fin Material | 11-13 Cr |
| Base Tube/Pipe OD | 16-219 mm |
| Fin Pitch | 3-25 mm |
| Fin Height | 5-30 mm |
| Fin Thickness | 0.8-3 mm |
| Pipe Length | Customsized |
| Application | Power Plant -Air preheaters, Boiler; Refrigeration and Air Conditioning systems: Heat exchangers |
| Brand Name | YuHong |
| Model Number | A335 P22 HFW Solid Finned Tube with 11-13 Cr Fins |
| Certification | ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008 |
| Place of Origin | China |
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Product Specification
| Payment Terms | T/T, L/C AT SIGHT | 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) |
| Base Pipe Specification | ASTM A335 | Base Pipe Material | P22 |
| Fin Type | Spiral High Frequency Welding Finned Tube/Solid Finned Tube | Fin Material | 11-13 Cr |
| Base Tube/Pipe OD | 16-219 mm | Fin Pitch | 3-25 mm |
| Fin Height | 5-30 mm | Fin Thickness | 0.8-3 mm |
| Pipe Length | Customsized | Application | Power Plant -Air preheaters, Boiler; Refrigeration and Air Conditioning systems: Heat exchangers |
| Brand Name | YuHong | Model Number | A335 P22 HFW Solid Finned Tube with 11-13 Cr Fins |
| Certification | ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008 | Place of Origin | China |
| High Light | A335 fin and tube ，P22 fin and tube ，Heat Exchanger finned pipes | ||
ASTM A335 P22 HFW Solid Finned Tube with 11-13 Cr Fins For Heat Exchanger
The ASTM A335 P22 HFW Solid Finned Tube with 11-13 Cr Fins is a specialized type of tubing used in high-temperature and high-pressure applications, particularly in industries like power generation, petrochemical, and oil and gas. Here's a breakdown of its components and features:
1. HFW (High-Frequency Welded):
Manufacturing Process: HFW refers to the method used to produce the base tube. In this process, a strip of metal is formed into a cylindrical shape, and the edges are welded together using high-frequency electrical currents.
Advantages:
2. Solid Finned Tube:
A finned tube is a type of heat exchanger tube that has fins attached to its outer surface to increase the surface area for better heat transfer.
Solid Fins: Unlike embedded or wrapped fins, solid fins are integrally bonded or welded to the base tube. This creates a strong mechanical connection and ensures efficient heat transfer.
Advantages of Solid Fins:
3. 11-13 Cr Fins:
The fins are made from a material containing 11-13% Chromium (Cr). This high chromium content provides excellent oxidation resistance and corrosion resistance, especially in high-temperature environments.
Chromium also enhances the durability and longevity of the fins, making them suitable for harsh operating conditions.
Key Features and Applications:
4. Material Composition (Chemical Composition):
The chemical composition of ASTM A335 P22 is designed to provide excellent high-temperature strength, oxidation resistance, and creep resistance. The composition is as follows:
| Element | Composition (% by weight) |
| Carbon (C) | 0.05 - 0.15 |
| Manganese (Mn) | 0.30 - 0.60 |
| Phosphorus (P) | ≤ 0.025 |
| Sulfur (S) | ≤ 0.025 |
| Silicon (Si) | 0.50 max |
| Chromium (Cr) | 1.90 - 2.60 |
| Molybdenum (Mo) | 0.87 - 1.13 |
Key Alloying Elements:
Chromium (Cr): Provides oxidation and corrosion resistance at high temperatures.
Molybdenum (Mo): Enhances strength and creep resistance at elevated temperatures.
5. Mechanical Properties:
The mechanical properties of ASTM A335 P22 are specified to ensure the material can withstand high-temperature and high-pressure environments. The typical mechanical properties are:
| Property | Value |
| Tensile Strength | ≥ 415 MPa (60,000 psi) |
| Yield Strength | ≥ 205 MPa (30,000 psi) |
| Elongation (in 50 mm) | ≥ 30% |
| Hardness | ≤ 250 HBW (Brinell Hardness) |
Notes:
The tensile and yield strength values ensure the material can handle high stress at elevated temperatures.
The elongation percentage indicates good ductility, which is important for forming and welding processes.
The hardness limit ensures the material is not too brittle for industrial applications.
6. Applications:
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. The factories ... 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. The factories ...
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