CS HFW Fin Tube ASME SA106 Gr.B HVAC System Heat Transfer Efficiency
What is HFW Fin Tube?
High-frequency welded finned tube is to increase the external surface area (or internal surface area) of the heat exchanger tube by adding fins to the surface of the heat exchanger tube, so that the purpose of heat transfer efficiency is achieved. High-frequency welded finned tube, welding speed is relatively fast, has a strong self-cooling effect, and the heat-affected zone is small, but also not easy to produce oxidation, the structure and characteristics of the welded seam is very good. The finned tube has good anti-corrosion characteristics, wear resistance, long service life and high stability.
Characteristic of HFW Fin tube
1. It is made of high-frequency electric current, it is a kind of heat exchanging element, which is a kind of heat dissipation tube to improve the heat dissipation efficiency of the radiator by adding finned tube on the base tube radiator. High-frequency welded finned tube is a kind of end device of the heating system, with high heat dissipation efficiency and excellent heating effect.
2. They are widely used in boilers in thermal power plants, coal economizers in industry, and hot air systems in many fields. High-frequency welded finned tube usually adopts low carbon steel as the main raw material, if in some more humid environment and complex places, the surface of the finned tube will be galvanized treatment.
3. They applied in a large area of the environment, the heat demand is greater, so this requires the heat pipe can be equipped with more media. High-frequency welded finned tube diameter is generally 1.5 inches, 2 inches, 2.5 inches, etc., according to the user's needs for processing, can reach 6 inches.
4. They are available in many models to meet the different needs of a wide range of people as well as places. High-frequency welded finned tubes have high heat dissipation efficiency, compact structure, low thermal resistance, and certain energy-saving properties, which can save a large amount of heating costs for the user, with high economy.
Chemical Composition OF ASME SA106 Gr.B
| Grade A | Grade B | Grade C |
| Carbon max. % | 0.25 | 0.30 | 0.35 |
| Manganese % | 0.27 to 0.93 | 0.29 to 1.06 | 0.29 to 1.06 |
| Phosporous, max. % | 0.025 | 0.025 | 0.025 |
| Sulfur, max. % | 0.025 | 0.025 | 0.025 |
| Silicon, min. % | 0.10 | 0.10 | 0.10 |
Mechanical Propertie OF ASME SA106 Gr.B
| Seamless | Grade A | Grade B | Grade C |
| Tensile Strength, min., psi | 48,000 | 60,000 | 70,000 |
| Yield Strength, min., psi | 30,000 | 35,000 | 40,000 |
Equivalent of ASME SA106 Gr.B
| Former | New |
| Execution | Standard | Material | Standard | Material |
| Seamless | ASTM A106 | GRADE B | EN 10216-2 | P265GH |
Advantages of HFW Finned Tube
Easy to install, the length can reach 6 meters; easy maintenance, no maintenance after installation; high power, heat dissipation area is more than 8 times than the light tube, the internal is more lubricated, the internal water flow resistance is small; long service life, fins and tubes combined with high mechanical strength, tensile strength of 200Mpa or more.
Scope of inspection
Mill test
Penetration Test
Size Inspection
Application:
Petrochemical
machinery
metallurgy
oil
Gas
Heat exchanger
Condenser
