Equivalent alloy: 4J29 (China), 29HK(Russia), Kovar, Rodar (US), Nilo K(UK), KV-1,KV-2,KV-3(Japan), Vacon 12, Silvar 48(Germany)
Kovar 29 overview characteristics and application fields:
In a certain temperature range has close to hard glass line thermal expansion coefficient. And the response of matching hard glass sealing.
Kovar 29 chemical composition(%):
|
C |
P |
S |
Mn |
Si |
Ni |
Cr |
Al |
Mo |
Co |
Cu |
Fe |
|
≤0.03 |
≤0.02 |
≤0.02 |
≤0.50 |
≤0.30 |
28.5~29.5 |
≤0．20 |
≤0.20 |
≤0.20 |
16.8~17.8 |
≤0.20 |
Margin |
The Physical properties of Kovar 29:
|
The average linear expansion coefficient |
|
|
20~400℃ |
20~450℃ |
|
4.6~5.2 |
5.1~5.5 |
The above data is for your reference, should you have any special requirements, please contact us!