Mourad Metals is a reputable manufacturer and supplier located in Tunis, Tunisia, specializing in high-quality NILO Alloy K bars and rods for industries around the globe. With a strong reputation for precision manufacturing and rigorous quality control, Mourad Metals guarantees products that adhere to international standards and meet demanding technical specifications. NILO Alloy K is well-known for its controlled thermal expansion and is crafted with exceptional dimensional accuracy, surface finish, and consistency. Thanks to modern facilities, a skilled workforce, and a customer-centric approach, Mourad Metals delivers dependable solutions for applications that require outstanding sealing performance, thermal stability, and long-lasting reliability in critical industrial settings.
NILO Alloy K is an iron-nickel-cobalt alloy, typically composed of about 29% nickel, 17% cobalt, with the remainder being iron and trace elements like carbon, manganese, and silicon. This specific composition results in a controlled coefficient of thermal expansion that closely matches that of borosilicate glass and ceramics. In terms of mechanical properties, NILO Alloy K bars and rods provide good tensile strength, moderate yield strength, and sufficient elongation, ensuring both toughness and formability. The alloy also demonstrates stable mechanical behavior across a wide temperature range, maintaining its structural integrity during thermal cycling.
| Grade | C | Mn | Co | Ti | Si | Ni | Cr | Fe | Cu | Mo |
| Nilo Alloy K | 0.04 max | 0.50 max | 17.0 | 0.10 max | 0.20 | 29.0 | 0.20 max | 53.0 | 0.20 max | 0.20 max |
|
Properties |
Metric |
Imperial |
|---|---|---|
|
Tensile strength |
520MPa |
75.4 ksi |
|
Yield strength |
340 MPa |
49.3 ksi |
|
Modulus of elasticity |
130 GPa |
18900 ksi |
| STANDARD | WERKSTOFF NR. | UNS |
| Nilo Alloy K | – | K94610 |
Yes, Nilo Alloy K rods can be customized in size and length according to specific requirements. Suppliers typically offer custom options to meet precise dimensional needs for various applications.
Nilo Alloy K bars perform excellently in high-temperature environments, maintaining dimensional stability and resisting thermal expansion, making them suitable for applications in high-precision, temperature-sensitive environments like aerospace and electronics.
Yes, Nilo Alloy K bars are corrosion-resistant due to their high resistance to thermal expansion and ability to withstand harsh environments, making them suitable for applications in aerospace and electronics.
NILO Alloy K bars and rods find extensive use in applications where precise control of thermal expansion is crucial. They are particularly suited for glass-to-metal and ceramic-to-metal seals in electronic components, vacuum tubes, power devices, and hermetic packages. This alloy is widely utilized in aerospace, telecommunications, medical instruments, and optoelectronic assemblies. Additionally, NILO Alloy K is employed in precision instruments, sensors, and sealing frames that require long-term dimensional stability. Its reliable performance under thermal stress makes it a vital choice for high-reliability and high-precision engineering applications.






We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Mourad Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Tunis, Tunisia
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