Invar® Disc

Invar® Discs are made from a nickel-iron alloy with a very low coefficient of thermal expansion and high strength. They’re commonly used in precision instruments and devices where dimensional stability is critical, such as optics, electronics and aerospace applications. With minimal thermal expansion, Invar allows for consistent performance across a wide temperature range. Goodfellow offers Invar® Discs in a choice of sizes to suit different design requirements.

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