Kovar is a controlled-expansion alloy engineered to match the thermal expansion of glass and ceramics. InstaVoxel offers precision CNC machining for Kovar components used in hermetic sealing, electronics, photonics, and aerospace applications.
Kovar’s unique thermal expansion behavior allows reliable glass-to-metal and ceramic-to-metal seals, making it essential for vacuum-tight and thermally stable assemblies.
The following table shows common Kovar. If you have any other alloy requirements, please contact us.
51,000 PSI
27%
Rockwell B88
0.302 lb/in³
(8.36 g/cm³)
The following table shows common surface finishes for Kovar.
