Welcome to Maduka Metals, your trusted partner for premium industrial materials right here in Abuja. We specialize in supplying high-performance nickel alloy hollow bars, engineered to meet the rigorous demands of various critical industries. Our commitment is to provide not just a product, but a reliable solution that supports the growth and durability of your projects, backed by our local expertise and dedication to quality that you can count on.
These hollow bars are crafted from advanced nickel-chromium alloys, often including elements like molybdenum and titanium for enhanced performance. This composition grants them exceptional strength and an outstanding resistance to both extreme heat and corrosion. They maintain their structural integrity under severe stress and in aggressive environments, making them a fundamentally tougher and more durable choice than standard materials.
| Grade | Nickel Alloy – Pure Nickel |
|---|---|
| Specification | Nickel Bar Cold Finished : B160, SB160 400: B164, SB164, QQ-N-281 405: B164, SB164, QQ-N-281, ASTM B160 |
| Standard | ASTM, ASME, API, GB, AISI, DIN, EN, SUS, UNS |
| Round bar size | Diameter: 3-~800mm |
| Round Bar 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 |
| Round Bar Surface | Bright, Hot Rolled Pickled, Cold Drawn, Sand Blasting Finished, Polished, Hairline |
| Condition | Hardened & tempered, annealed |
| Technique | Hot Rolled, Cold Drawn, Cold Rolled, Forged Round Bar, Rod |
| Tolerance | H8, H9, H10, H11, H12, H13K9, K10, K11, K12 or as per clients’ requirements |
| Processing | Bar cutting to 650mm |
| 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, Nickel Alloy Hollow Bars can be used for underground applications due to their excellent corrosion resistance, durability, and ability to withstand harsh environmental conditions.
Yes, Nickel Alloy Hollow Bars can be recycled after use, making them an environmentally friendly material. Their recyclability helps conserve resources and reduces environmental impact, contributing to sustainable practices.
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
You’ll find these versatile bars are indispensable in sectors where failure is not an option. They are commonly used to construct vital components for chemical processing plants, offshore oil and gas platforms, and aerospace systems. Their hollow design is perfect for applications requiring the flow of fluids or gases, making them ideal for pump shafts, valve components, and heat exchanger tubing, all while significantly reducing overall weight without compromising strength.






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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