ASTM A249 TP316L Stainless Steel Welded U Bend Tube For Heat Exchanger
Brand Name:YUHONG
Certification:ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2008
Model Number:ASTM A249 TP316L
Minimum Order Quantity:100KGS
Delivery Time:5-80 Days
Payment Terms:T/T, L/C AT SIGHT
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ASTM A249 TP316L Stainless Steel U Bend Tube
Overview
ASTM A249 TP316L U bend tubes are a specific type of stainless steel tubes that have a U-shaped bend. They are manufactured in accordance with ASTM A249 standards, which set the requirements for seamless and welded austenitic stainless steel tubes for various applications. TP316L refers to the specific grade of stainless steel used, which is known for its excellent corrosion resistance, high temperature strength, and superior mechanical properties.
U bend tubes are typically used in heat exchangers and condensers, where the U-shaped bend allows for an efficient flow of fluids and maximizes the heat transfer area. The bend radius, dimensions, and tolerances of the U bend section are specified in the ASTM A249 standard to ensure proper fit and functionality.These tubes undergo stringent quality control measures during the manufacturing process to meet the required chemical composition, mechanical properties, and dimensional specifications. Inspections and tests, such as visual examination, flattening, flaring, hardness testing, and non-destructive testing (such as eddy current or hydrostatic testing), are performed to ensure the tubes meet the required standards and are free from any defects.
The benefits of ASTM A249 U Bend Tube
1>.Efficient Heat Transfer: The U-shaped bend design enhances the heat transfer efficiency of the tubes, making them ideal for heat exchangers and condensers. The curved configuration increases the surface area for heat exchange, allowing for improved thermal performance.
2>.Optimal Fluid Flow: The U bend shape promotes smooth and uninterrupted fluid flow within the tubes. This feature minimizes pressure drop, ensures efficient circulation, and reduces the risk of fluid blockages or restrictions.
3>.Corrosion Resistance: ASTM A249 TP316L stainless steel is known for its exceptional corrosion resistance properties. This makes U bend tubes highly resistant to corrosive environments, including those with high chloride content, acidic conditions, or exposure to various chemicals.
Chemical Composition of ASME SA249 TP316L
| Grade | C | Mn | Si | P | S | Ni | Cr | Mo | |
| TP316L | Min | 10.0 | 16.0 | 2.0 | |||||
| Max | 0.03 | 2.0 | 1.0 | 0.045 | 0.03 | 14.0 | 18.0 | 3.0 |
Mechanical Properies of ASME SA249 TP316L
| Grade | Tensile Str Ksi(Mpa) | Yield Str Ksi(Mpa) | Elongation(%) | Hardness | |
| Rockwell (HRB) | Brinell(HB) | ||||
| A316L | ≥70(485) | ≥25(170) | ≥35 | ≤B90 | ≤200 |
Wall Thickness Tolerance of ASME SA249
| Welded, Cold-Finished Tubes | Type | Wall Thickness Tolerance | |
| OD Range | Under(-) | Over(+) | |
| All Sizes | WLD | 10% | 10% |
ASTM A249 TP316L Stainless Steel Welded U Bend Tube For Heat Exchanger
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