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Precision Alloys

Kovar alloy 4J29
Chemical Composition Wt.%No.Chemical composition (mass fraction) (%)
Brief Introduction4J29 alloy, also known as Kovar alloy. The alloy has similar linear expansion coefficient to silicon-boron-hard glass at 20-450 ℃, high Curie point and good low-temperature tissue stability. Alloy oxide film is dense, can be well infiltrated by the glass. And does not interact with mercury, suitable for use in mercury-containing discharge meters. Electric vacuum device is the main structure of the sealing material.Precision Alloys

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