Invar 42 is a nickel-iron alloy valued for its controlled thermal expansion and dimensional reliability. It is especially suited for glass-to-metal sealing and electronic enclosure applications. Invar 42 is widely used in electronic packages, lead frames, sensor housings, and precision components. The alloy provides consistent mechanical properties and maintains stability under temper... https://www.bhansaliaeroalloys.com/invar-42/