YUHONG HOLDING GROUP CO., LTD
| Payment Terms | TT, LC |
| Supply Ability | According to Clients' requirements |
| Delivery Time | 35-60 Days (Depend on Customer's Requirements) |
| Packaging Details | Ply-wooden Cases with Steel Frames and Pipe's both ends with plastic caps |
| Product Name | Studded Tube, Studded Finned Tube |
| Base Tube Specification&Material | ASTM A106 Gr.B |
| Fin material | C.S. |
| Fin Height | 5~30 mm |
| Fin Pitch | 8~30 mm |
| Fin O.D. | 5~20 mm |
| Base Tube O.D. | 25-219 mm |
| Application Industries | Heat Exchangers; Boilers; Petrochemical & Oil Refining Industries; Air Coolers & Process Heaters... |
| Brand Name | Yuhong |
| Model Number | ASTM A106 Gr.B Studded Tube with CS Fins |
| Certification | ABS, BV, DNV, CCS, LR |
| Place of Origin | China |
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Product Specification
| Payment Terms | TT, LC | Supply Ability | According to Clients' requirements |
| Delivery Time | 35-60 Days (Depend on Customer's Requirements) | Packaging Details | Ply-wooden Cases with Steel Frames and Pipe's both ends with plastic caps |
| Product Name | Studded Tube, Studded Finned Tube | Base Tube Specification&Material | ASTM A106 Gr.B |
| Fin material | C.S. | Fin Height | 5~30 mm |
| Fin Pitch | 8~30 mm | Fin O.D. | 5~20 mm |
| Base Tube O.D. | 25-219 mm | Application Industries | Heat Exchangers; Boilers; Petrochemical & Oil Refining Industries; Air Coolers & Process Heaters... |
| Brand Name | Yuhong | Model Number | ASTM A106 Gr.B Studded Tube with CS Fins |
| Certification | ABS, BV, DNV, CCS, LR | Place of Origin | China |
| High Light | A106 Gr B Studded tube ，CS Fins Studded tube ，Studded Tube A106 | ||
ASTM A106 Gr.B Studded Tube with CS Fins for Economizers and Air Preheaters
An ASTM A106 Gr.B Studded Tube with CS (Carbon Steel) Fins is a specialized type of heat exchanger tube designed for high-efficiency heat transfer in demanding industrial applications. Here’s a detailed breakdown:
1. Base Tube: ASTM A106 Gr.B
(1) Chemical Composition (ASTM A106 Gr.B)
| Element | Composition (% Max) |
| Carbon (C) | 0.30 max |
| Manganese (Mn) | 0.29–1.06 |
| Phosphorus (P) | 0.035 max |
| Sulfur (S) | 0.035 max |
| Silicon (Si) | 0.10 min* |
| Chromium (Cr) | 0.40 max |
| Copper (Cu) | 0.40 max |
| Molybdenum (Mo) | 0.15 max |
| Nickel (Ni) | 0.40 max |
| Vanadium (V) | 0.08 max |
Notes:
Si (Silicon) improves oxidation resistance at high temps.
Low S/P reduces brittleness and improves weldability.
Mn enhances strength and hardenability.
(2) Mechanical Properties (ASTM A106 Gr.B)
| Property | Value |
| Tensile Strength | ≥ 415 MPa (60,200 psi) |
| Yield Strength | ≥ 240 MPa (35,000 psi) |
| Elongation (in 50mm) | ≥ 20% (longitudinal) |
| Hardness (Brinell) | ≤ 179 HB |
| Allowable Stress (at 400°C/750°F) | ~110 MPa (16,000 psi)* |
Notes:
High tensile strength makes it suitable for high-pressure steam/water service.
Good ductility (≥20% elongation) prevents cracking during fabrication.
Hardness limit ensures weldability and machinability.
Key Applications Leveraging These Properties
2. Studded Design
Studs (pins) are resistance-welded onto the tube’s outer surface in a pattern (e.g., spiral, staggered).
Purpose:
Increases turbulence of flue gases/fluids, improving heat transfer.
Prevents ash/fouling buildup in dirty gas applications (e.g., waste heat recovery).
3. Carbon Steel (CS) Fins
Fins are helical or longitudinal strips welded or embedded to further boost surface area.
Why CS?
Cost-effective for non-corrosive environments (e.g., steam, air, flue gases).
Compatible with high-temperature industrial processes.
4. Key Features & Advantages
| Feature | Benefit |
| Studs + Fins | 3–5x higher heat transfer vs. bare tubes |
| Seamless A106 Gr.B | No weak joints; handles high pressure |
| Carbon Steel | Affordable, durable for non-corrosive media |
| Custom Patterns | Optimized for gas flow/ash cleaning |
The ASTM A106 Gr.B Studded Tube with CS (Carbon Steel) Fins is commonly used in heat exchangers and boilers, particularly in applications requiring high-temperature and high-pressure resistance. Here are its key applications:
1. Heat Exchangers (Waste Heat Recovery, Economizers, Air Preheaters)
Used in power plants, refineries, and chemical processing industries to recover waste heat from flue gases.
The studs (pins) and fins enhance heat transfer efficiency by increasing the surface area.
2. Boilers (Water Tube & Fire Tube Boilers)
Suitable for high-pressure steam generation due to ASTM A106 Gr.B’s strength.
The studded design improves heat absorption from combustion gases.
3. Petrochemical & Oil Refining Industries
Used in furnaces, reformers, and cracking units where corrosion resistance and thermal efficiency are critical.
4. Air Coolers & Process Heaters
The finned design improves air-side heat transfer, making it ideal for cooling and heating applications.
Key Benefits:
Industries Served:
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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