ASME SA249 TP304 Stainless Steel Welded Tubes For Heat Exchanger Equipment
Chemical Composition (%) max
| Grade | C | Mn | P | S | Si | Cr | Ni |
| TP304 | 0.08 | 2.00 | 0.045 | 0.030 | 1.00 | 18.0-20.0 | 8.0-11.0 |
Mechanical Properties
| Grade | Tensile Strength min | Yield Strength min | Elongation in 2" or 50mm min |
| TP304 | 75ksi (515 MPa) | 30ksi (205 MPa) | 35% |
ASME SA249 This specification covers nominal-wall-thickness welded tubes and heavily cold worked welded tubes made from the austenitic steels, with various grades intended for such use as boiler, superheater, heat exchanger, or condenser tubes. TP304 steel, a common austenitic stainless steel containing 18% chromium and 8% nickel, known for its excellent corrosion resistance and mechanical properties.
Key Features Suitable For Heat Exchangers
Corrosion Resistance: SA249 welded tubes, especially those made from TP304 or TP316L stainless steel, offer excellent resistance to corrosion caused by fluids, chemicals, and high-temperature environments. This ensures long-term durability and reliability in heat exchanger applications.
High-Temperature Strength: These tubes maintain their structural integrity and mechanical properties at elevated temperatures, making them ideal for heat exchangers operating under high thermal stress.
Thermal Conductivity: Stainless steel tubes provide efficient heat transfer, which is essential for the effective operation of heat exchangers.
Leak Resistance: The welded construction of A249 tubes ensures a tight seal, minimizing the risk of leaks and cross-contamination between fluids.
Pressure Resistance: These tubes are designed to withstand high internal and external pressures, making them suitable for demanding heat exchanger applications.
Cleanability and Hygienic Properties: The smooth surface of SA249 tubes prevents fouling and makes them easy to clean, which is particularly important in industries like food, pharmaceuticals, and chemicals.
Applications In Heat Exchangers
Industrial Heat Exchangers: Used in chemical plants, refineries, and power generation facilities to transfer heat between process fluids.
HVAC Systems: Employed in heating, ventilation, and air conditioning systems for efficient heat exchange.
Food and Beverage Industry: Used in pasteurizers, sterilizers, and other heat exchange equipment where hygiene and corrosion resistance are critical.
Marine and Offshore: Utilized in heat exchangers for cooling systems in ships and offshore platforms, where resistance to saltwater corrosion is essential.
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ASME SA249 TP304 Stainless Steel Welded Tubes For Heat Exchanger Equipment Images
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