Embedded G type Fin Tube Carbon Steel ASME SA179 with Aluminum Air Cooler
What is ASME SA179 Fin Tube?
Embedded Fin Tube is a type of tube that has fins that are embedded into the surface of the pipe, forming part of the pipe. The fins are typically made of aluminum or copper and are secured to the surface of the pipe by machining or welding. The fins may be shaped at right angles, spiraled, or other shapes to increase the surface area of the pipe.
And they are widely used in heat exchange equipment and air-conditioning systems in chemical, petroleum, electric power, pharmaceutical, metallurgical and other industries. They are used to improve heat exchange efficiency, save energy and increase the performance of the equipment. In some special applications, such as high temperature, high pressure or corrosive environments, inlaid finned tubes made of materials such as high temperature resistant alloys or stainless steel can be used as an option.
Chemical Composition OF ASME SA179
| Material |
Chemical Composition(%) |
| C |
Si |
Mn |
P |
S |
| ASTM A179 |
0.06-0.18 |
≤ 0.25 |
0.27-0.63 |
≤0.035 |
≤0.035 |
Mechanical Propertie OF ASME SA179
| Grade |
ASTM A179 |
| Tensile Strength(MPa) |
≥325 |
| Yield Strength(MPa) |
≥180 |
| Elongation,% |
≥35 |
| Hardness, HRB |
≤72 |
Carbon Steel Fin Tube Performance
1.The heat transfer performance of the finned tube is related to the contact heat resistance between the ribs and the tube, and the contact heat resistance lies in the contact pressure between them.
2.Temperature ResistanceWhen the temperature of the finned tube wall increases, resulting in a change in the contact pressure between the ribs and the tube, the contact heat resistance will also change, and the value of the change lies in the form of the finned tube and the initial contact pressure.
3.Atmospheric Corrosion ResistanceThe base tube of the finned tube is protected by the ribs to combat atmospheric corrosion. Various forms of finned tubes differ in their ability to resist atmospheric corrosion given the location of the protection.
4. The ability of the tube to resist pressureThe numerous operating pressures of finned tubes lie in the base tube material and wall thickness, but are also related to the form of the finned tube.
5. Cleaning of dirtThe air side of the finned tube is cleaned of dirt, usually using compressed air, water vapour or high pressure water. With this approach, a degree of rigidity of the ribs is required.
Finned tubes are widely used in power and chemical industries, and many spiral heat transfer surfaces or threaded tubes can be regarded as finned tubes. It has a significant effect on extending the heat exchange area and promoting turbulence, whether for single phase convection heat exchange or phase change convection heat exchange. The structure of the finned tube heat exchanger is essentially the same as that of a normal shell and tube heat exchanger. Only the finned tube is replaced by a bare tube as the heat transfer surface. Finned tube heat exchangers are also commonly used to heat or cool gases outside the tube, while passing steam or water through the pipe, e.g. air coolers, boiler economisers, heaters etc.
Application:
Petrochemical
machinery
metallurgy
heating and ventilation systems
rubber
building facilities
greenhouse greenhouse
hot water and heat-conducting oil
