ASTM A213 TP304 TP304L TP316L TP321/TP321H TP347H U Bend Tube For Heat Exchanger

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.

ASTM A213 TP304L is a specification for seamless and welded austenitic stainless steel tubes, designed for high-temperature and corrosion-resistant environments. The "TP304L" grade is a low-carbon version of 304 stainless steel, providing enhanced weldability and resistance to intergranular corrosion.

ASTM A213 TP321H Stainless Steel Seamless Pipe austenitic chromium-nickel stainless steel pipe suitable for corrosive or high-temperature service, or both, or for general applications.

ASTM A213/ASME SA213 covers low alloy steel pipes and minimum-wall-thickness, seamless ferritic and austenitic steel, boiler and super-heater tubes and austenitic steel heat-exchanger tubes, designated Grades TP304,TP304H,TP304L,TP310S, TP310HCbN, TP316, TP316H, TP316L etc.

Grades TP304H, TP309H, TP309HCb, TP310H, TP310HCb, TP310HCbN, TP316H, TP321H, TP347H, TP347HFG (fine grained) and TP348H are modifications of Grades TP304, TP309S, TP309Cb, TP310S, TP310Cb, TP316, TP321, TP347, and TP348, and are intended for high-temperature service, such as for superheaters and reheaters.

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.

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.

OD 9.5mm – 38.1mm
WT up to 6.35mm
Bending radii 1.25 x OD up to 1700mm
Bends can be supplied in accordance with TEMA R / ASTM SA/A556
Leg length up to 15000mm
Heat treatment where required by electric furnance or direct resistance
Hydrotesting up to 10,000 psi
Surface Finish: Annealed, pickled, or polished

ASTM A213 Chemical Composition %

ASTM A213 Mechanical Properties And Solution Temperature (Min, Degree Centigrade).

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