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Okoye Nickel Alloys is a well-respected manufacturer and supplier of top-notch Nimonic 90 Bars based in Kinshasa, Congo. They cater to a variety of industrial sectors with their precisely engineered nickel-chromium-cobalt alloy products. Renowned for their dedication to quality, the company offers Nimonic 90 Bars that boast remarkable strength, thermal stability, and resistance to oxidation, making them perfect for extreme temperature applications. With state-of-the-art production facilities, rigorous quality controls, and a passionate technical team, Okoye Nickel Alloys guarantees that each bar meets international standards. They continue to provide reliable, durable, and high-performance Nimonic solutions to industries in Congo.
Nimonic 90 is a high-performance nickel-based superalloy with improved strength, oxidation and corrosion resistance at high temperatures. Its composition is approximately 90% nickel, 2-3% titanium, 1-3% aluminium, and traces of chromium, carbon and iron. Technical properties include high tensile strength (up to 1,200 MPa), good creep resistance and excellent weldability. Because of its exceptional thermal stability and resistance to thermal fatigue, it is widely used in turbine blades, engine parts, and other hot components Its main advantage is its ability to retain strength and performance in harsh and extremely hot environments.
| Standards : | – |
| Dimensions : | EN, DIN, JIS, ASTM, BS, ASME, AISI |
| Wire : | Thickness starting from 0.05mm |
| Round bar size : | Diameter: 3-~800mm |
| Hex Bar size : | 2-100mm A/F |
| Flat bar size : | Thickness: 2 -100mm / Width: 10 to 500mm |
| Square bar size : | 4 to 100mm |
| Rectangular Bars Size : | 33 x 30mm to 295 x 1066mm |
| Hollow Bar : | 32mm OD x 16mm ID to 250mm OD x 200mm ID |
| Tolerance : | H8, H9, H10, H11, H12, H13K9, K10, K11, K12 or as per clients’ requirements |
| Finish : | Black, Bright Polished, Rough Turned, NO.4 Finish, Matt Finish, BA Finish |
| Grade | Ni | Cr | Co | Ti | Al | C | Si | Cu | Fe | Mn | B | S | Zr | Pb |
| Nimonic 90 | Bal | 18-21 | 15-21 | 2-3 | 1-2 | 0.2 max | 1.0 max | 0.2 max | 1.5 max | 1.0 max | 0.02 max | 0.015 max | 0.15 max | 0.0020 max |
| Grade | Condition | Ultimate Tensile Strength MPA | Yield Strength MPA | Elongation on 4D (min) | Hardness min |
| Nimonic 80A | Solution Annealed & Precipatation Treated (aged) | 994 | 616 | 20 | 300 HV |
The Nimonic 90 Bars produced by Okoye Nickel Alloys in Kinshasa, Congo, are primarily made up of nickel, chromium, and cobalt, with small amounts of titanium and aluminum added to enhance precipitation hardening. This alloy showcases impressive mechanical properties, including high tensile strength, excellent creep resistance, and remarkable thermal stability at elevated temperatures. It also provides outstanding oxidation and corrosion resistance, ensuring long-lasting durability in tough environments. These combined features make Nimonic 90 Bars ideal for high-stress, high-temperature industrial applications.
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Nimonic 90 Bars from Okoye Nickel Alloys in Kinshasa, Congo, find extensive use in industries that demand materials capable of performing reliably under extreme temperatures and mechanical stress. They are commonly utilized in gas turbine components, jet engine parts, nuclear power plant equipment, and high-temperature fasteners. Thanks to the alloy’s resistance to oxidation and heat, it’s also suitable for furnace hardware, exhaust systems, and heat-treatment fixtures. Additionally, it plays a vital role in aerospace engineering, automotive racing components, and chemical processing plants. The high strength and stability of Nimonic 90 Bars make them a go-to choice for demanding applications.
