ASTM A213 TP304 Stainless Steel Seamless U Bend Tube For Heat Exchanger
ASTM A213 TP304 Stainless Steel U Bend Tube
Overview
ASTM A213 TP304 is a standard specification for seamless ferritic and austenitic alloy-steel boiler, superheater, and heat-exchanger tubes. It covers a variety of grades, including TP304, which is a commonly used stainless steel grade.
The U bend tube refers to a specific type of tube that has been bent into the shape of a "U." These tubes are commonly used in heat exchangers, condensers, and other applications where a compact design is required.
The benefits of U Bend Tube:
1>.Space-saving design: U-bend tubes allow for a compact and efficient use of space, especially in heat exchangers and condensers. The U-bend shape helps to reduce the overall length of the tube bundle, making it suitable for applications with limited space.
2>.Reduced stress and fatigue: U-bend tubes are designed to minimize stress and fatigue at the bend region. The smooth curvature of the U-bend helps distribute stress evenly, reducing the chances of tube failure due to fatigue or excessive stress concentrations.
3>.Enhanced heat transfer: The U-bend design promotes enhanced heat transfer by creating turbulence and improving fluid flow characteristics. This allows for better heat exchange efficiency in applications where heat transfer is crucial.
4>.Simplified installation and maintenance: U-bend tubes can be easily installed and replaced, making maintenance and repairs more manageable. The U-bend shape allows for straightforward tube installation, particularly in confined spaces.
5>.Cost-effective solution: U-bend tubes offer a cost-effective solution for applications requiring compact heat exchangers. The reduced material and space requirements can result in overall cost savings, making them a popular choice in various industries.
Chemical Composition of ASTM A213 TP304
| Grade | C | Mn | Si | P | S | Ni | Cr | |
| TP304 | Min | 8.0 | 18.0 | |||||
| Max | 0.08 | 2.0 | 1.0 | 0.045 | 0.03 | 11.0 | 20.0 |
Mechanical Properies of ASME SA213 TP304
| Grade | Tensile Str Ksi(Mpa) | Yield Str Ksi(Mpa) | Elongation(%) | Hardness | |
| Rockwell (HRB) | Brinell(HBW) | ||||
| TP304 | ≥70(485) | ≥25(170) | ≥35 | ≤90 | ≤192 |
Wall Thickness Tolerance of ASME SA213
| Welded, Hot-Finished Tubes | Type | Wall Thickness Tolerance |
| OD Range | Average(-) | |
| 6~65mm(Incl.) | SMLS&WLD | (-12.5%,+20%) |
| >65mm | SMLS&WLD t/D≤5% | (-12.5%,+22.5%) |
| >65mm | SMLS&WLD t/D>5% | (-12.5%,+15%) |
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