Starc Metals stands out as a top-notch manufacturer and supplier of Nilo Alloy 48 Bars and Rods right here in Canberra, Australia. We take pride in offering high-quality nickel-iron alloy products that are crafted for precision and stability. Our Nilo Alloy 48, also known as Alloy 48 or Invar 48, is specially engineered for controlled expansion, making it a perfect match for soft glass and ceramics. It boasts impressive dimensional stability across a broad temperature range, which makes it an excellent choice for electronic, electrical, and instrumentation applications. At Starc Metals, we are committed to delivering exceptional quality, a fine surface finish, and precise composition control, ensuring our products meet the rigorous standards of advanced engineering industries.
When it comes to the composition of our Nilo Alloy 48 Bars and Rods, you’ll find about 48% nickel and 52% iron, along with trace amounts of carbon, manganese, and silicon. This unique balance of nickel and iron results in a low coefficient of thermal expansion, especially between –50°C and +200°C. On the mechanical side, it offers a tensile strength of around 480 MPa, a yield strength of about 275 MPa, and remarkable ductility and toughness. The alloy maintains its magnetic stability and structural integrity even under varying thermal conditions, making it perfect for applications that require precision and thermal compatibility.
| Grade | C | Mn | P | S | Si | Ni | Cr | Fe |
| Nilo Alloy 48 | 0.05 max | 0.80 max | 0.025 max | 0.025 max | 0.030 max | 48 | 0.250 max | Bal |
| Material | Condition | Tensile Strength | Yield Strength (0.2% Offset) | Elongation (%) | ||
| psi | MPa | psi | MPa | |||
| Alloy 48 | Annealed | 71,000 | 520 | 38,000 | 250 | 43 |
| STANDARD | WERKSTOFF NR. | UNS |
| Nilo Alloy 48 | – | K94800 |
Maintain Nilo Alloy 48 bars by storing them in a dry environment, avoiding contact with corrosive substances, cleaning with non-abrasive materials, and inspecting regularly for damage or corrosion.
Yes, Nilo Alloy 48 Bars and Rods can be customized in size and length to meet specific requirements, ensuring they are tailored for diverse industrial and engineering applications.
Nilo Alloy 48 bars and rods excel in high-temperature environments due to their exceptional thermal expansion control, oxidation resistance, and stability, making them ideal for aerospace, electronic, and industrial applications.
Nilo Alloy 48 Bars and Rods are commonly used in electronic components, lead frames, glass-to-metal seals, and semiconductor packages where matching thermal expansion is crucial. They also find their place in vacuum tubes, CRTs, and transistor housings, ensuring stable performance despite temperature changes. In the aerospace and instrumentation sectors, Nilo 48 is relied upon for precision parts that need both mechanical strength and thermal reliability. With its exceptional stability, machinability, and controlled expansion properties, Nilo Alloy 48 has become the go-to material for high-precision engineering and electronic applications.






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