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Chanathip Nickel Alloys & Plates is a renowned Duplex Steel Tubing Manufacturer in Bangkok, Thailand. We offer seamless and welded duplex tubing for high-pressure and corrosion-susceptible environments. Produced to ASTM A789 and A790 specifications, our tubes provide superior performance in mechanical and chemical processes. Available in multiples of 2205 and S31803 grades, our duplex tube is produced in different sizes, finishes, and lengths. Every tube passes rigorous tests for strength, wall thickness, pressure ratings, and surface finish to ensure that it complies with industry standards for offshore, chemical, and structural applications.
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Standard |
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ASTM A789 /ASME SA 789 |
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Type |
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Seamless Tubes |
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Grade |
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UNS S31803 & UNS S32205 |
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Size |
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1/2″NB TO 12 “NB IN |
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Thickness |
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0.5-45mm |
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Outer Diameter |
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6.0-630mm |
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Dimensions |
: |
OD(6.0-630)*WT(0.5-45)mm |
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Schedule |
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SCH20, SCH30, SCH40, STD, SCH80 |
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Length |
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Single Random, Double Random & Cut Length |
Duplex Steel Tubing | Ni | Cr | Mo | Mn | Si | C | N | S | P | Fe |
MIN | 4.5 | 22.0 | 3.0 | – | – | – | 0.14 | – | – | – |
MAX | 6.5 | 23.0 | 3.5 | 2.0 | 1.0 | 0.03 | 0.2 | 0.02 | 0.03 | Balance |
At Chanathip Nickel Alloys, we take pride in being the largest supplier, exporter, and manufacturer of Duplex Steel Tubing in Bangkok, Thailand, providing cutting-edge solutions for all your piping needs. Our state-of-the-art production plants are strategically located in the Thailand, allowing us to maintain a vast inventory of over 16,000 tons of premium-quality materials readily available in stock. We are dedicated to delivering superior products and services, ensuring reliability and excellence for our global clientele.
Contact us to get a quick quote for your requirement.
Duplex Steel Tubing finds wide application in heat exchangers, chemical injection pipelines, condensers, food processing applications, power generation, and marine processes. It is particularly used in offshore oil & gas platform uses, desalination plants, and refineries where corrosion resistance is critical. The tubing finds ideal use to carry acids, seawater, and other corrosive media at high pressure. It also has applications in structural use such as scaffolding, supports for pipes, and columns. Its mechanical strength coupled with corrosion resistance makes Duplex tubing a popular choice for low-maintenance long life gas and fluid systems.
