Expansion alloys
Kovar 29

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

≤020

≤0.20

≤0.20

16.8~17.8

≤0.20

Margin

 

The Physical properties of Kovar 29:

 

The average linear expansion coefficient
ā/
10-6/

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!