Alloy K - Supplier of Kovar Alloy K Bar, Alloy K Sheet, Alloy K Plate, Alloy K Wire & Alloy K Tube

Kovar / Alloy K is available in: Bar , Rod, Tube, Sheet, Strip and Wire. We are experts in difficult to obtain sizes. UNS K94610, ASTM F 15, AMS 7726, AMS 7727, AMS 7728, MIL I 23011, W Nr. 1.3981, Nilo K MATERIAL USAGE Kovar a nickel-iron-cobalt controlled-expansion alloy containing 29% nickel. Its coefficient of expansion, which decreases with rising temperature to the inflection point, matches the expansion rate of borosilicate glasses and alumina ceramics. Used for glass-to-metal seals in applications requiring high reliability or resistance to thermal shock. Examples are high-power transmitting valves, transistor leads and headers, integrated-circuit lead frames, and photography flash bulbs.

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