Characteristics: Kovar is an iron-nickel-cobalt alloy with a coefficient of thermal expansion similar to that of hard (borosilicate) glass. This makes it especially suitable for uses which require a matched-expansion seal between metal and glass parts. Kovar finds usage in the electronics industry for metal parts bonded to hard glass envelopes for such devices as power tubes, x-ray tubes, etc., and other applications requiring glass-to-metal seals.
For more information about Kovar, visit the Technical Data page.
In addition to the standard products listed in our online catalog, custom shapes and sizes are available upon request. If you have a custom requirement email us at email@example.com or use our custom quote request tool to tell us exactly what you require.