Home > Duplex Steel > Duplex Steel S31803 Pipe
From the heart of Kinshasa, Okoye Nickel Alloys stands as a trusted source for industrial strength, specializing in the robust Duplex Steel Pipes S31803. We understand that demanding environments require unmatched reliability, which is why we focus on providing materials that excel under pressure. Our commitment goes beyond supply; we aim to be a genuine partner in your projects, ensuring you have the resilient components needed to build with confidence and durability for the long term.
The exceptional strength of Duplex Steel S31803 comes from its balanced composition, blending chromium, nickel, molybdenum, and nitrogen. This clever formula gives it a unique dual-phase microstructure, resulting in mechanical properties that are truly impressive. It offers a remarkable yield strength that far surpasses conventional stainless steels, along with outstanding toughness and excellent resistance to stress corrosion cracking, making it a heavyweight performer where others might fail.
Pipe Range : 1 / 2″ NB – 8″ NB
Outer Diameter : 6.0-630mm
Wall Thickness : 0.3mm – 50 mm
Schedules : SCH20, SCH30, SCH40, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS
Length : Single Random, Double Random & Required Length
Specifications : ASTM A790 / ASME SA790
| Duplex | S31803 |
|---|---|
| Ni | 4.50 – 6.50 |
| Fe | 63.72 min |
| Cr | 22.0 – 23.0 |
| C | 0.030 max |
| Si | 1.00 max |
| Mn | 2.00 max |
| P | 0.030 max |
| S | 0.020 max |
| N | 0.14 – 0.20 |
| Grade | S31803 |
| Density (g/cm 3) | 7.805 |
| Density (lb/in 3) | 0.285 |
| Melting Point (°C) | 1420 – 1465 |
| Melting Point (°F) | 2588 – 2669; |
At Okoye Nickel Alloys, we take pride in being the largest supplier, exporter, and manufacturer of Duplex Steel S31803 Pipe 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.
You’ll typically find these pipes hard at work in some of the most challenging settings. They are essential in the offshore oil and gas industry, handling corrosive seawater and aggressive well fluids. Chemical processing plants rely on them for transporting harsh acids and solvents, while pollution control systems and desalination units also benefit from their longevity. Essentially, wherever corrosion and high pressure are constant threats, Duplex Steel S31803 provides a dependable and durable solution.
