Welcome to Maduka Metals, your trusted partner for high-performance materials right here in Abuja. We specialize in supplying top-quality Inconel 690 bars and rods, bringing industrial-grade excellence directly to Nigeria’s heart. Our commitment is to provide robust and reliable solutions for the most demanding projects, ensuring you have access to world-class nickel alloys backed by local expertise and dependable service. We understand the critical nature of your work and are here to support your success with products you can count on.
Inconel 690 is a nickel-chromium alloy known for its exceptional resistance to corrosion, particularly in high-temperature and aqueous environments. Its high nickel content provides outstanding protection against stress-corrosion cracking, while the significant chromium addition offers superior resistance to oxidizing conditions. This combination results in a material with excellent mechanical strength, impressive durability under thermal stress, and reliable performance over the long term, making it a go-to choice for situations where failure is not an option.
Specification : ASTM B 166 / ASME SB 166, AMS 5887
Dimensions : ASTM, ASME and API
Size : 1mm to 3500mm
Diameter : 0.1 mm to 100 mm
Length : 100 mm To 3000 mm Long & Above
Finish : Bright, Polish & Black
Grade : Inconel 690 – UNS N06690
Form : Round, Square, Hex (A/F), Rectangle, Wire (Coil Form), Wire-mesh, Billet, Ingot, Forging Etc.
Our Inconel 690 Round Bars conforms to NACE MR0175/ISO 15156
| Grade | Ni | Cr | Fe | C | Mn | S | Mo | Si | Co |
| Inconel 690 | 48.85 – 62 | 20 – 24.0 | Balance | ≤ 0.15 | ≤ 1 | – | 8 – 10 | ≤ 1 | 10-15 |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 8.3g/cm³ | 1363°C | ≥ 485 MPa | ≥ 275 MPa | 25 % |
| STANDARD | WERKSTOFF NR. | UNS |
| Inconel 690 | 2.4642 | N06690 |
Yes, we provide bars and rods in standard and customized dimensions and polishes to meet your specific project requirements. For more details mail us on sales@www.madukametal.com
Inconel 690 bars and rods are primarily used in high-temperature and high-pressure environments, including power plants, chemical processing, and nuclear reactors, due to their excellent resistance to oxidation, corrosion, and stress corrosion cracking.
Yes, Inconel 686 bars/rods offer excellent resistance to strong acids like sulfuric, hydrochloric, and phosphoric acids, making them ideal for highly corrosive applications.
The remarkable properties of Inconel 690 bars and rods make them indispensable in several demanding fields. You’ll find them at the core of nuclear steam generator systems, where their reliability is paramount. They are also essential in chemical processing equipment, handling aggressive acids and catalysts. Furthermore, these bars are used in heat-treating fixtures, furnace components, and pollution control systems, proving their worth wherever extreme heat and corrosive conditions are part of the daily challenge, ensuring safety and longevity in critical applications.






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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