Home > Duplex Steel > Duplex Steel Tubing
In the heart of Kinshasa, Okoye Nickel Alloys stands as a trusted partner for industry, dedicated to providing robust solutions through our high-quality Duplex Steel Tubing. We understand the demanding environments our clients operate in, which is why we focus on supplying materials that offer exceptional strength and longevity. Our commitment goes beyond mere supply; we aim to build lasting relationships by ensuring our tubing meets the precise challenges faced by projects across the Congo and beyond, delivering reliability where it matters most.
Duplex Steel Tubing gets its remarkable character from a balanced composition of chromium, nickel, molybdenum, and nitrogen. This unique blend gives the material a mixed microstructure, leading to an excellent combination of high strength—often double that of standard austenitic steels—and impressive toughness. It also inherits outstanding resistance to corrosion, particularly against stress corrosion cracking, making it a formidable choice for handling aggressive substances and standing up to punishing physical demands in challenging operational settings.
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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 |
: |
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 Okoye Nickel Alloys, we take pride in being the largest supplier, exporter, and manufacturer of Duplex Steel Tubing in Kinshasa, Congo, providing cutting-edge solutions for all your piping needs. Our state-of-the-art production plants are strategically located in the Congo, 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.
The superior qualities of Duplex Steel Tubing make it indispensable across a wide range of critical applications. You’ll find it at work in the oil and gas industry, transporting corrosive hydrocarbons, and in chemical processing plants where it handles aggressive acids and solvents. It’s also essential for desalination facilities, offshore marine structures, and even in pulp and paper production. Essentially, wherever intense pressure, corrosive media, and demanding temperatures are part of the daily routine, this tubing provides a dependable and long-lasting solution.
