Nilo® Alloy 48 / Invar® 48

Nilo® Alloy 48 / Invar® 48 / 1.3922 – 1.3926 – 1.3927 / UNS K94800

Nilo® Alloy 48, also known as Invar® 48, is a nickel-iron alloy with a nickel content of approximately 48%. This alloy is developed for applications where precise control of thermal expansion is crucial.

The material has a low and predictable thermal expansion coefficient and is optimized for use with soft lead and lime glass. Nilo® Alloy 48 also features a high Curie point, making it highly suitable for temperature-sensitive applications.

Properties of Nilo® Alloy 48 / Invar® 48

Nilo® Alloy 48 is specifically designed to minimize thermal stresses in environments where metals are combined with glass. The alloy has a very low linear expansion coefficient up to temperatures of approximately 450°C and offers excellent stability during temperature fluctuations.

Its high Curie point makes the alloy resistant to magnetic changes at elevated temperatures, which is advantageous in electronic and precision applications. Additionally, the material exhibits good workability and is suitable for welding, soldering, and sealing with glass.

Due to its unique thermal and physical properties, Nilo® Alloy 48 is a widely used choice for glass-to-metal seals and temperature-sensitive components.

Applications of Nilo® Alloy 48 / Invar® 48

Nilo® Alloy 48 is widely used in glass-to-metal seals, such as those found in light bulbs, electronic tubes, and relay housings. Its compatibility with soft lead and lime glass makes it an ideal choice in the lighting industry.

Additionally, the alloy is used in industrial thermostats and temperature-sensitive instruments, where a low and stable coefficient of expansion is crucial. Thanks to its stability up to 450°C, Nilo® 48 can be deployed in demanding applications within measurement and control technology.

Nilo® Alloy 48 is the alloy of choice for applications requiring minimal thermal expansion and reliable glass-to-metal sealing.

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