Welcome to Maduka Metals, your trusted partner for high-performance materials right here in Abuja. We specialize in supplying top-quality Nimonic 90 bars and rods, engineered to meet the demanding challenges of modern industry. Our commitment is to provide local manufacturers and engineers with reliable, readily available superalloy solutions, backed by expert knowledge and a dedication to supporting Nigeria’s growing industrial sector with materials you can count on.
Nimonic 90 is a nickel-chromium-cobalt superalloy strengthened with titanium and aluminum. This specific composition gives it an excellent combination of high tensile strength and outstanding resistance to creep, which is the tendency of a material to deform under prolonged stress. It retains these impressive mechanical properties even when exposed to extreme temperatures and corrosive environments, making it far more durable than standard steels under such punishing conditions.
Dimension : EN, DIN, JIS, ASTM, BS, ASME, AISI
Grade : Nimonic 90 (UNS No. N07090) Round Bars
Finish : Black, Bright Polished, Rough Turned, NO.4 Finish, Matt Finish, BA Finish
Form : Round, Square, Hex (A/F), Rectangle, Billet, Ingot, Forging Etc.
Surface : Hot Rolled Pickled or Sand Blasting Finished, Cold Drawn, Bright, Polished, Hairline
Application : Chemical process, Food processing, Petrochemical, Pollution control, Pulp and Paper, Refining
Condition : Cold Drawnd Pulished Cold Drawn Centreless Ground & Polished.
Our Nimonic Alloy 90 Round Bars conforms to NACE MR0175/ISO 15156
| Grade | C | Cr | Co | Ti | Al | Si | Cu | Mn |
| Nimonic Alloy 90 | 0.2 max | 18 – 21 | 15 – 21 | 2 – 3 | 1 – 2 | 1.0 max | 0.2 max | 1.0 max |
| Density | Melting Point | Coefficient of Expansion | Modulus of Rigidity | Modulus of Elasticity (Annealed + Aged) (Spring Temper + Aged) |
|---|---|---|---|---|
| 8.18g/cm³ | 1370°C | 12.7 μm/m °C (20 – 100°C) | 82.5 kN/mm² | 213 kN/mm² 227 / 240 kN/mm² |
| STANDARD | WERKSTOFF NR. | UNS |
| Nimonic Alloy 90 | – | N07090 |
Yes, Nimonic 90 bars are highly suitable for high-temperature applications. They are known for excellent strength, oxidation resistance, and stability at elevated temperatures, making them ideal for aerospace and turbine components.
Yes, Nimonic 90 bar can be welded, but it requires careful control of heat and welding parameters. Typically, TIG (Tungsten Inert Gas) welding is recommended for best results.
Nimonic 90 rod is available in various sizes, typically from 1/8" to 12" in diameter. Common finishes include cold drawn, hot rolled, or bright polished, depending on the supplier.
You’ll find Nimonic 90 playing a critical role in applications where failure is not an option. It is extensively used for manufacturing turbine blades and discs in aerospace engines and land-based gas turbines, where intense heat and rotational forces are constant. Beyond aerospace, its reliability is crucial for high-temperature fasteners, exhaust valves in high-performance automotive engines, and components for hot-work tools and dies, ensuring longevity and safety in the most challenging operational conditions.






We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Maduka Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Abuja, Nigeria
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