High-Frequency Welding ASTM A106 Gr.B Carbon Steel Fin Pipe for Heater Applications
ASTM A106 Gr.B carbon steel finned pipes are ideal for heater applications where efficient heat transfer and durability under high temperatures are critical. The high-frequency welding (HFW) process ensures a robust bond between the fins and the base tube, enhancing thermal efficiency and performance in industrial heating systems.
1. Material Specifications
Base Tube Material:
- Standard: ASTM A106
- Grade: Gr.B (Grade B)
- Type: Seamless Carbon Steel Pipe.
- Applications: Used in high-temperature service applications requiring strength and reliability.
Fin Material:
- Material: Carbon Steel.
- Type: High-frequency welded fins.
2. Chemical Composition of Base Tube (ASTM A106 Gr.B Carbon Steel)
| Element | Content (%) |
| Carbon (C) | ≤ 0.30 |
| Manganese (Mn) | 0.29 – 1.06 |
| Phosphorus (P) | ≤ 0.035 |
| Sulfur (S) | ≤ 0.035 |
| Silicon (Si) | ≤ 0.10 |
| Iron (Fe) | Balance |
3. Mechanical Properties of Base Tube (ASTM A106 Gr.B)
| Property | Value |
| Tensile Strength | ≥ 415 MPa |
| Yield Strength | ≥ 240 MPa |
| Elongation | ≥ 20% |
| Hardness | ≤ 197 HB |
4. Key Features of High-Frequency Welded Fins
- Durability: High-frequency welding ensures a strong and reliable bond between fins and tubes, making the pipe suitable for high-temperature and high-stress conditions.
- Enhanced Heat Transfer: The fins significantly increase the surface area, improving the pipe’s efficiency in transferring heat.
- Corrosion Resistance: Proper surface treatments can enhance the carbon steel’s resistance to oxidation and corrosion, making it suitable for prolonged use.
- Thermal Conductivity: Carbon steel provides excellent heat transfer properties, critical for heater efficiency.
5. Applications
- Industrial Heaters: Commonly used in process heaters where thermal efficiency is essential.
- Heat Exchangers: Enhances heat recovery in chemical plants and refineries.
- Boilers: Suitable for economizers and other boiler components requiring efficient heat transfer.
- Petrochemical Industry: Used in furnaces and heaters for hydrocarbon processing.
6. Advantages
- High-Temperature Resistance: ASTM A106 Gr.B carbon steel can withstand elevated temperatures without compromising structural integrity.
- Cost-Effectiveness: Carbon steel is an economical choice for industrial heating systems.
- Strong Bonding: HFW ensures fins are securely attached, providing long-term reliability.
- Customizable Design: Fins can be designed to meet specific heat transfer requirements.
