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ASTM A213 TP316L Stainless Steel U Bend Tube
Overview
The standard for ASTM A213 TP316L U bend tubes is defined by ASTM A213, which is the specification for seamless ferritic and austenitic alloy-steel boiler, superheater, and heat-exchanger tubes. This standard outlines the requirements and testing methods for various grades of stainless steel tubes used in high-temperature and corrosive environments.
Specifically, ASTM A213 TP316L is the grade designation for seamless U bend tubes made from TP316L stainless steel. The "L" in TP316L indicates the low carbon content of the steel, which provides better corrosion resistance in certain applications.The ASTM A213/A213M standard covers dimensions, mechanical properties, fabrication, and heat treatment requirements for TP316L U bend tubes. It ensures that the tubes meet the necessary criteria for quality, performance, and safety in high-temperature and corrosive environments.
The benefits of ASTM A213 U Bend Tube
Efficient Heat Transfer: The U bend design enhances heat transfer efficiency by allowing the tube to bend and form a U shape. This configuration increases the surface area and improves the contact between the hot and cold fluids, resulting in better heat exchange performance.Corrosion Resistance: TP304L stainless steel is known for its excellent corrosion resistance properties. It can withstand exposure to various corrosive environments, including high-temperature and high-pressure conditions. This makes it suitable for applications where resistance to corrosion is essential...
Chemical Composition of ASTM A213 TP316L
| Grade | C | Mn | Si | P | S | Ni | Cr | Mo | |
| TP316L | Min | 10.0 | 16.0 | 2.0 | |||||
| Max | 0.035 | 2.0 | 1.0 | 0.045 | 0.03 | 14.0 | 18.0 | 3.0 |
Mechanical Properies of ASTM A213 TP316L
| Grade | Tensile Str Ksi(Mpa) | Yield Str Ksi(Mpa) | Elongation(%) | Hardness | |
| Rockwell (HRB) | Brinell(HBW) | ||||
| TP316L | ≥70(485) | ≥25(170) | ≥35 | ≤90 | ≤192 |
Wall Thickness Tolerance of ASTM A213
| 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%) |
