ASME SA249 TP304 Finned Tube For Heat Exchanger
ASME SA249 TP304 is a specification for welded austenitic steel heat exchanger tubes. TP304 refers to the grade of stainless steel used, which is a common stainless steel grade used for heat exchanger applications.
Finned tubes are tubes with extended surfaces, called fins, attached to the outside surface of the tube. These fins increase the surface area of the tube, allowing for enhanced heat transfer between the fluid inside the tube and the surrounding environment. Finned tubes are commonly used in heat exchangers to improve the efficiency of heat transfer.
The ASME SA249 TP304 finned tubes for heat exchangers are manufactured by welding fins onto the outside surface of the TP304 tubes. The fins can be of various types, such as extruded, helical, or embedded. The finned tubes are designed to provide maximum heat transfer efficiency and are commonly used in applications where high heat transfer rates are required, such as in power plants, chemical plants, and refineries.
The ASME SA249 TP304 finned tubes for heat exchangers are designed to meet the requirements of the ASME Boiler and Pressure Vessel Code, which ensures their quality and ety. These tubes are manufactured in accordance with the specific requirements of the SA249 specification, which includes dimensions, tolerances, mechanical properties, and testing requirements.
Overall, the ASME SA249 TP304 finned tubes for heat exchangers are a reliable and efficient solution for heat transfer applications, providing enhanced heat transfer performance and durability.
Grade 304 Mechanical Properties
| Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50 mm) min | Hardness |
| Rockwell B (HR B) max | Brinell (HB) max |
| 304 | 515 | 205 | 40 | 92 | 201 |
| 304L | 485 | 170 | 40 | 92 | 201 |
| 304H | 515 | 205 | 40 | 92 | 201 |
Grade 304 Physical Properties
| Grade | Density (kg/m3) | Elastic Modulus (GPa) | Mean Coefficient of Thermal Expansion (μm/m/°C) | Thermal Conductivity (W/m.K) | Specific Heat 0-100 °C (J/kg.K) | Electrical Resistivity (nΩ.m) |
| 0-100 °C | 0-315 °C | 0-538 °C | at 100 °C | at 500 °C |
| 304/L/H | 8000 | 193 | 17.2 | 17.8 | 18.4 | 16.2 | 21.5 | 500 | 720 |
Application Of ASME SA249 TP304 Finned Tube For Heat Exchanger
ASME SA249 TP304 finned tubes are specifically designed for heat exchangers. These tubes are made from TP304 stainless steel, which is a commonly used material due to its excellent corrosion resistance and high temperature strength.
The finned design of these tubes enhances their heat transfer capabilities. The fins increase the surface area of the tube, allowing for better heat transfer between the fluid inside the tube and the surrounding environment. This makes them ideal for applications where efficient heat transfer is required, such as in heat exchangers.
These finned tubes are manufactured in accordance with the ASME SA249 standard, which ensures their quality and reliability. They undergo strict testing and inspection procedures to ensure that they meet the specified requirements for dimensional accuracy, mechanical properties, and surface finish.
ASME SA249 TP304 finned tubes are commonly used in various industries, including petrochemical, chemical, power generation, and HVAC. They are suitable for both high and low-temperature applications and can withstand harsh operating conditions.
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