Extra information
Glass to Kovar
Direct seals: Kovar to several glasses (7040, 7052, 7056).
Graded seals: kovar to 7070, 7720, 7740 (pyrex).
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
Other sizes available on request