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Overview:
Carbon steel HFW (High Frequency Welded) fin tubes are a type of heat exchanger
component commonly used in various industrial applications,
particularly in the oil and gas, petrochemical, power generation,
and HVAC sectors. These tubes consist of a base tube, typically
made of carbon steel, which is welded with fins along its length
using a high-frequency welding process.
The high-frequency welding process involves passing an electric current through the edges of the fins and the tube, heating them to the point where they can be fused together without the need for additional filler material. This results in a strong bond between the fins and the tube, ensuring efficient heat transfer between the fluid inside the tube and the surrounding environment.The fins on HFW fin tubes serve to increase the surface area of the tube, thereby enhancing heat transfer efficiency. This design allows for improved heat exchange performance while minimizing material and energy consumption.
Description:
| Standard | ASTM A106 & Its equivalent ASME, DIN & EN standard |
| Base Tube Material | Gr.A/B/C |
| Fin Material | Carbon Steel |
| Base Tube O.D. | 16-219mm |
| Fin Height | 6-50mm |
| Fin Thickness | 0.3-3.0mm |
| Fin Pitch | As customer's request |
| Tube End | Plain Ends, Beveled Ends |
| Bare End | As customer's request |
| Weld Process | GMAW |
| Production Capacity | More than 5000 meters per day |
Chemical Composition:
| Grade | C | Mn | P | S | Si | Cr | Cu | Mo | Ni | V |
| A | 0.25 max | 0.27-0.93 | 0.035 max | 0.035 max | 0.10 min | 0.40 max | 0.40 max | 0.15 max | 0.40 max | 0.08 max |
| B | 0.30 max | 0.29-1.06 | 0.035 max | 0.035 max | 0.10 min | 0.40 max | 0.40 max | 0.15 max | 0.40 max | 0.08 max |
| C | 0.35 max | 0.29-1.06 | 0.035 max | 0.035 max | 0.10 min | 0.40 max | 0.40 max | 0.15 max | 0.40 max | 0.08 max |
Mechanical Properties:
| Grade | Tensile Strength, min, psi (MPa) | Yield Strength, | Elongation in 2 in. | Heat Treatment Temperature, | |
| Longitudinal | Transverse | ||||
| A | 48000(330) | 30000(205) | 35 | 25 | 1200(650) |
| B | 60000(415) | 35000(240) | 30 | 16.5 | 1200(650) |
| C | 70000(485) | 40000(275) | 30 | 16.5 | 1200(650) |
Application:
ASTM A106 GR.B HFW Fin Tube is commonly used in are commonly used
in industries requiring effective heat exchange, such as oil and
gas, petrochemical, and power generation. They offer a combination
of strength, durability, and thermal efficiency, making them a
versatile option for various thermal management needs.
1. Oil and Gas Industry: Used in air coolers, condensers, and
boilers for heat exchange processes in refinery operations.
2. Petrochemical Industry: Utilized in heat exchangers for
processes like distillation, cracking, and chemical production.
3. Power Generation Plants: Employed in power plant boilers and
heat recovery systems for efficient energy transfer.
4. HVAC Systems: Found in air conditioning units, chillers, and
heat pumps to regulate air temperature effectively.
