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Kovar® - UNS K94610Kovar® alloy is an iron-nickel-cobalt alloy. Kovar® has been used for making hermetic seals with ceramic materials and glass. Kovar® has been used in power tube, microwave tubes, diodes and transistors. Available forms are seamless pipe, welded pipe, seamless tube, welded tube, bar, wire, sheet, plate, forgings, pipe fittings and flanges