Welcome to Maduka Metals, your trusted partner in Abuja for premium metal solutions. We take pride in supplying industry-leading materials directly to the heart of Nigeria’s growing industrial sector. Among our specialized offerings are the highly reliable Nilo Alloy 42 bars and rods, engineered to meet the most demanding specifications for precision and durability in critical applications across various fields.
Nilo Alloy 42 is a nickel-iron alloy known for its unique thermal expansion properties. It contains approximately 42% nickel, with the balance being iron, giving it a coefficient of thermal expansion that closely matches that of certain glasses and ceramics. This characteristic makes it exceptionally stable across a wide temperature range. Mechanically, it offers good strength and ductility, allowing it to be easily machined and formed into the precise components required for sensitive electronic and engineering assemblies.
Dimension : EN, DIN, JIS, ASTM, BS, ASME, AISI
Grade : Nilo Alloy 42 (UNS No. K94100) Round Bars 1.3917
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 Nilo Alloy 42 Round Bars conforms to NACE MR0175/ISO 15156
| Grade | C | Mn | P | S | Si | Ni | Cr | Fe |
| Nilo Alloy 42 | 0.05 max | 0.80 max | 0.025 max | 0.025 max | 0.030 max | 41 min | 0.250 max | Bal |
| Material | Condition | Tensile Strength | Yield Strength (0.2% Offset) | Elongation (%) | ||
| psi | MPa | psi | MPa | |||
| Alloy 42 (Nilo 42) | Annealed | 71,000 | 490 | 36,000 | 250 | 43 |
| STANDARD | WERKSTOFF NR. | UNS |
| Nilo Alloy 42 | 1.3917 | K94100 |
Yes, Nilo Alloy 42 bars and rods are corrosion-resistant. They offer excellent resistance to oxidation and corrosion, particularly in high-temperature environments, making them suitable for various industrial applications.
Yes, Nilo Alloy 42 bars and rods can be customized in size and length according to specific requirements, ensuring suitability for various applications in industries like aerospace and electronics.
Nilo Alloy 42 bars and rods maintain excellent dimensional stability in high-temperature environments due to their low coefficient of thermal expansion, making them ideal for applications requiring thermal precision and resistance.
The primary use for these bars and rods is in creating hermetic seals in electronics, such as those found in transistors, integrated circuits, and vacuum tubes, where metal must be joined to glass without cracking. You’ll also find them essential in the production of precision instruments, watch parts, and aerospace components. Their stability under temperature fluctuations ensures reliability in applications where even the slightest expansion or contraction could lead to failure, making them a cornerstone material for advanced manufacturing and innovation.






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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