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Group number     GMS020 Description: Glass to Metal Seals - Kovar to Glass 7052

Extra information

Glass to Kovar
Direct seals: Kovar to several glasses (7040, 7052, 7056).
Graded seals: kovar to 7070, 7720, 7740 (pyrex) and quartz.
Temperature range: -270°C to 425°C; kovar may undergo a phase change below -80°C although kovar has a transformation point below -195°C