Home > Super Duplex Steel > Super Duplex Steel Forgings
Okoye Nickel Alloys, a reputable manufacturer and supplier based in Kinshasa, Congo, specializes in top-notch Super Duplex Steel Forgings. These forgings are celebrated for their remarkable strength, resistance to corrosion, and long-lasting durability. Crafted from advanced duplex stainless steel grades, they merge the advantages of both austenitic and ferritic structures, ensuring outstanding performance even in the toughest conditions. Super Duplex Steel Forgings excel in resisting pitting, crevice corrosion, and stress corrosion cracking, making them perfect for industries like chemicals, marine, and oil & gas. At Okoye Nickel Alloys, we prioritize precision machining, rigorous quality control, and adherence to international standards, providing dependable forging solutions for challenging industrial applications around the globe.
| Standard | ASTM A182, ASME SA182 |
| Specification | DIN, ASTM, BS and all International Standards |
| Flat bar blocks | up to 27″ width and 15,000 lbs. |
| Cylinders and sleeves | up to 50″ maximum O.D. and 65″ maximum length |
| Discs and hubs | up to 50″ diameter and 20,000 lbs. |
| Rolled, hand forged or mandrel forged rings | up to 84″ maximum O.D. and 40″ maximum length |
| Rounds, shafts and step shafts | up to 144″ maximum length and 20,000 lbs. |
| Forging Types | Impression Die Forging, Open Die Forging, Seamless Rolled Forging, Hot Forging, Cold Forging, Open die hammer forging, Impression die drop forging, Closed Die Forging, Press Forging, Upset Forging, Compression Forging, Swaging, Rotary Forging, Roll forging. |
| Element | Cr | Ni | Mn | Si | P | S | C | N | Mo | Fe |
|---|---|---|---|---|---|---|---|---|---|---|
| MIN | 22.0 | 4.5 | – | – | – | – | – | 0.1 | 3.0 | – |
| MAX | 23.0 | 6.5 | 2.0 | 1.0 | 0.03 | 0.02 | 0.03 | 0.2 | 3.5 | bal |
| 0.2% Yield Strength, ksi | 65 min |
| Tensile Strength, ksi | 90 min |
| Elongation, % | 25 min |
| Hardness [HRC] | 293 max |
At Okoye Nickel Alloys, we take pride in being the largest supplier, exporter, and manufacturer of Super Duplex Steel Forgings 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.
Super Duplex Steel Forgings are widely utilized in various industries such as offshore, petrochemical, marine, pulp and paper, and desalination, thanks to their impressive strength and resistance to corrosion. They’re perfect for applications like pump shafts, valve components, flanges, couplings, and parts of pressure vessels, where maintaining high mechanical integrity and resisting chloride attack is crucial. These forgings excel in subsea oil and gas systems, chemical processing units, and heat exchangers, where they constantly face corrosive environments. With their outstanding machinability and structural stability, Super Duplex Steel Forgings provide a long service life and cost-effective performance in demanding industrial settings.
