Home > Duplex Steel > Duplex Steel S31803 Stud Bolts
From the heart of Kinshasa, Okoye Nickel Alloys stands as a trusted source for high-performance industrial components, specializing in the supply of Duplex Steel S31803 stud bolts. We recognize that the integrity of any major project hinges on the quality of its smallest parts, which is why we are committed to delivering fasteners that offer an exceptional balance of strength and resilience, perfectly suited for the demanding environments found across Congo and beyond.
At its core, Duplex Steel S31803 achieves its remarkable qualities from a balanced composition of chromium, nickel, molybdenum, and nitrogen. This blend gives the stud bolts a unique dual-phase microstructure, resulting in impressive mechanical properties. They possess a high tensile strength that often surpasses standard stainless steels, combined with excellent toughness and good ductility. This allows them to handle significant stress without compromising their structural integrity.
| Grade | Duplex Steel UNS S31803 / S31803 |
| Specifications | ASTM A 479 ASME SA 479 |
| Dimension | DIN, ASTM, BS and all International Standards |
| Length | 3mm to 200mm |
| Size | M3 – M56 | 3/6″ to 2″ | Custom Sizes |
| Types | Threaded Rod, Class A double ended stud, Tie Rod, Double Ended Stud, Stud Bolts, Bronze Hex Studs, Threaded Studs etc |
| S31803 | C | N | P | Si | Mn | Mo | Fe | Cr | S | Ni |
| 1.0 | 0.03 | 0.02 | 2.0 | 3.0 – 3.5 | 22.0 – 23.0 | 0.03 | 4.5 – 6.5 | 0.14 – 0.2 | Bal |
| S31803 | Density | Melting Point | Yield Strength (0.2%Offset) | Tensile Strength | Elongation |
| 7.8 g/cm3 | 1350 °C (2460 °F) | Psi – 80000 , MPa – 550 | Psi – 116000 , MPa – 800 | 15 % |
At Okoye Nickel Alloys, we take pride in being the largest supplier, exporter, and manufacturer of Duplex Steel S31803 Stud Bolts 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.
These stud bolts are truly engineered for challenging situations, making them ideal for critical applications in industries like oil and gas, where they secure components in pipelines and processing equipment exposed to corrosive chemicals. They are equally vital in desalination plants, marine environments, and chemical processing facilities, providing reliable, long-lasting connections in settings plagued by chlorides and other aggressive elements. Their robustness ensures safety and reduces maintenance needs in the most punishing conditions.
