Nilo® alloy 48/Invar® 48 is a nickel-iron alloy containing 48% nickel. The thermal expansion coefficient is designed to be used in combination with soft lead and soda lime glass. Nilo® alloy 48 also has a high turning point. (1.3922/26/27 | UNS K94800)
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Applications of Nilo® alloy 48/Invar® 48
Nilo® alloy 48 is used for glass/metal seals in, e.g., light bulbs and for industrial thermostats at temperatures up to 450°C.