Naing Steel, based in Naypyidaw, Myanmar, stands out as a top manufacturer and supplier of Low Temperature Carbon Steel A333 Gr 3 Pipes. With a strong focus on quality and innovation, Naing Steel delivers dependable piping solutions that adhere to global standards for low-temperature applications. A333 Gr 3 pipes are specially designed to retain high strength, ductility, and impact resistance even in sub-zero conditions. These pipes find extensive use in vital sectors like oil and gas, petrochemicals, LNG, and power generation. Naing Steel guarantees consistent quality, durability, and performance through meticulous manufacturing and rigorous quality control measures.
Low Temperature Carbon Steel A333 Gr 3 Pipes are made up of nickel, carbon, manganese, phosphorus, sulfur, and silicon, providing remarkable toughness and strength in low-temperature settings. The nickel enhances ductility and impact resistance in cryogenic environments. These pipes boast a minimum yield strength of 240 MPa and a tensile strength ranging from 415 to 550 MPa. They offer excellent weldability, machinability, and resistance to brittle fracture. The fine-grain microstructure ensures reliability and consistent mechanical performance, making them perfect for applications that demand strength and safety in cold conditions.
Specification : ASTM A333 / ASME SA333
Grade : Grade 3
Size Range : 1/2″ NB to 36″ NB
Outer Dimensions : 19.05mm – 114.3mm
Wall Thickness : 2.0mm – 14 mm
Length : max 16000mm, Single Random, Double Random & Cut Length or As per customer’s requirement
Type : Seamless / ERW / Welded
Schedules : Seamless / ERW / Welded / Fabricated / LSAW Pipes
Form : Round Pipes, Square Pipes, Rectangular Pipe
| Grades | C, max | Mn | P, max | S, max | Si |
| Gr.3 | 0.19 | 0.31–0.64 | 0.025 | 0.18–0.37 | 3.18–3.82 |
| Grade | Yield Strength (Mpa) | Tensile Strength (Mpa) | Elongation (%) |
| Grade.3 | ≥450 | ≥240 | 30% |
| Wall Thickness | Grade 1 | Grade 3 | Grade 6 | ||||
| in. | mm | Longitudinal | Transverse | Longitudinal | Transverse | Longitudinal | Transverse |
| 5/16 (0.312) | 8 | 35 | 25 | 30 | 20 | 30 | 16 |
| 9/32 (.281) | 7.2 | 33 | 24 | 28 | 19 | 28 | 15 |
| 1/4 (.250) | 6.4 | 32 | 23 | 27 | 18 | 27 | 15 |
| 7/32 (.219) | 5.6 | 30 | 26 | 26 | |||
| 3/16 (.188) | 4.8 | 28 | 24 | 24 | |||
| 5/32 (.156) | 4 | 26 | 22 | 22 | |||
| 1/8 (.125) | 3.2 | 25 | 21 | 21 | |||
| 3/32 (.094) | 2.4 | 23 | 20 | 20 | |||
| 1/16 (.063) | 1.6 | 21 | 18 | 18 | |||
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Low Temperature Carbon Steel A333 Gr 3 Pipes are extensively utilized in industries where materials need to perform reliably in extremely low temperatures. They are frequently found in liquefied natural gas (LNG) systems, cryogenic processing units, gas transmission lines, refineries, and offshore platforms. These pipes are also ideal for pressure vessels, heat exchangers, and power plants. Their unique blend of strength, toughness, and weldability makes them a go-to choice for transporting gases and fluids in sub-zero environments, ensuring durability and safety in challenging industrial and engineering applications.
Low Temperature Carbon Steel A333 Gr 3 Pipes widely used for the applications required excellent toughness and resistance to the low-temperature condition. These pipes are suitable for use in cryogenic applications in liquefied natural gas (LNG) plants, petrochemical refineries, and gas processing plants. They are used frequently for the distribution of cold gases and liquids, owing to their mechanical properties remaining high at sub-zero degrees. And they are also used in pressure vessel construction and heat exchangers where durability and reliability in extreme cold matter. They are well weldable and good in low temperature service.
Naing Steel is a leading manufacturer, supplier and exporter of high-quality Carbon Steel, Alloy Steel, Mild Steel and Galvanized Steel products. Our extensive product range includes Pipes, Tubes, Flanges, Pipe Fittings, Forged Fittings, Sheets and Plates, catering to various industries in Naypyidaw, Myanmar.
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