Welcome to Maduka Metals, your trusted partner in Abuja for premium industrial materials. We specialize in supplying high-performance nickel alloy hex bars, engineered to meet the demanding needs of Nigeria’s growing industrial sector. Our commitment is to provide not just products, but reliable solutions that ensure durability and efficiency for your most critical projects. When you choose Maduka Metals, you are choosing quality, local expertise, and a dedication to supporting the strength and progress of your operations right here in Nigeria.
Our nickel alloy hex bars are crafted from advanced compositions like Alloy 625 or Hastelloy C-276, renowned for their exceptional resistance to extreme heat, corrosion, and oxidation. This inherent strength translates into impressive mechanical properties, including high tensile strength and excellent fatigue resistance, allowing them to perform reliably under intense pressure and in challenging environments. These bars are built to maintain their structural integrity, offering a longevity that stands up to the toughest conditions, project after project.
| Specifications | ASTM B160 / ASME SB160 |
| Dimension Standard | EN, DIN, JIS, ASTM, BS, ASME, AISI |
| Hex Bar Diameter | 3 ~ 800mm |
| Hex Bar size | 2-100mm A/F |
| Finish | Cold (bright) drawn, centreless ground, hot rolled, smooth turned, peeled, slit rolled edge, hot rolled annealed, Rough Turned, Bright, Polish, Grinding, Centreless Ground & Black |
| Tolerance | H8, H9, H10, H11, H12, H13K9, K10, K11, K12 or as per clients requirements |
| Bar Surface | Bright, Hot Rolled Pickled, Cold Drawn, Sand Blasting Finished, Polished, Hairline |
| Rolled Bars Condition | Hardened & tempered, annealed |
| Cold Rolled Bar Technique | Hot Rolled, Cold Drawn, Cold Rolled, Forged Round Bar, Rod |
| Ni | Fe | C | Mn | Si | Cu | Mg | Ti | S |
|---|---|---|---|---|---|---|---|---|
| 99.0 Min | 0.4 Max | 0.02 Max | 0.35 Max | 0.2 Max | 0.25 Max | 0.15 Max | 0.1 Max | 0.01 Max |
| 99.0 Min | 0.4 Max | 0.15 Max | 0.35 Max | 0.1 Max | 0.25 Max | – | – | 0.01 Max |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
|---|---|---|---|---|
| 8.9 G/Cm3 | 1446 °C (2635 °F) | Psi – 67000 , MPa – 462 | Psi – 21500 , MPa – 148 | 45 % |
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
Nickel Alloy Hex Bars generally offer excellent natural corrosion resistance, especially in harsh environments. However, in highly aggressive conditions, additional protective coatings may be applied for enhanced durability and protection.
Nickel Alloy Rectangular Bars are primarily composed of nickel, along with other alloying elements like chromium, molybdenum, iron, and copper, to enhance their strength, corrosion resistance, and durability.
The versatility of these hex bars makes them indispensable across numerous fields. They are crucial in the oil and gas industry for downhole components, in chemical processing plants for valves and pumps, and in power generation for turbine blades and fasteners. Their unique properties also make them ideal for aerospace engineering and marine applications. Essentially, wherever conditions are exceptionally harsh and failure is not an option, our nickel alloy hex bars provide the dependable, high-strength foundation needed for safety and success.






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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