Welcome to Maduka Metals, your trusted partner in Abuja for premium-grade nickel alloys. We are proud to supply and manufacture Nimonic 80A bars and rods, offering local access to materials engineered for extreme conditions. Our commitment is to provide Nigerian industries with reliable, high-performance solutions backed by expert technical support, ensuring your projects are built on a foundation of quality and durability right here in the heart of the nation.
Nimonic 80A is a nickel-chromium alloy strengthened with titanium and aluminum, giving it a remarkable combination of high strength and excellent resistance to oxidation. It maintains its mechanical integrity even when exposed to intense heat, offering superb creep resistance. This makes it exceptionally tough and reliable under heavy loads at elevated temperatures, where ordinary steels would quickly soften and fail, ensuring long-lasting performance in demanding environments.
| Standards | Designation |
|---|---|
| ASTM | B637 |
| Length | Diameter |
|---|---|
| 2-12m | 6mm-500mm |
| Type | Certification |
|---|---|
| Nimonic 80A Round Bar | ISO 9001:2008 |
| Weight % | Ni | Cr | Ti | Al | C | Si | Cu | Fe | Mn | Co | B | Zr | S |
| Alloy 80A | Bal | 18.0-21.0 | 1.8-2.7 | 1.0-1.8 | 0.10 max | 1.0 max | 0.2 max | 3.0 max | 1.0 max | 2.0 max | 0.008 max | 0.15 max | 0.015 max |
| Material | Condition | Ultimate Tensile Strength ksi | Yield Strength ksi | Elongation on 4D (min) | Hardness min |
| Alloy 80A | Solution Annealed & Precipatation Treated (aged) | 145 | 90 | 20 | 300 HV |
|
Density |
8.19 g/cm3 |
| Melting point | 1320-1365°C |
Yes, Nimonic 80A, a nickel-based alloy, can be susceptible to galvanic corrosion when in contact with materials that have significantly different electrochemical potentials, especially in the presence of an electrolyte.
Yes, Nimonic 80A bar can be welded. It is commonly welded using techniques like TIG or MIG welding, with preheating and post-weld heat treatment to prevent cracking.
Nimonic 80A bars are available in various sizes, typically from 6mm to 250mm in diameter, and lengths up to 6 meters. Common finishes include bright, polished, and cold-drawn.
The exceptional heat resistance of Nimonic 80A bars and rods makes them ideal for critical components in gas turbines, such as turbine blades and rotor discs. They are also widely used in high-temperature fasteners, valve trim for internal combustion engines, and extrusion dies. Essentially, any application that demands strength and corrosion resistance under severe thermal stress, from aerospace engineering to advanced industrial manufacturing, can benefit from the proven reliability of this advanced superalloy.






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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