Kovar is made up of 29% nickel, 17% cobalt, .2% silicon, .3% manganese and 53.5% iron. Kovar is known for its low coefficient of thermal expansion. Kovar end uses are usually glass sealing in the electronics industry.
| Kovar Rod |
Kovar coil |
Kovar Sheet |
Kovar Plate |
| (diameters) |
(thickness) |
|
|
| .040" DIA X R/L |
.004" |
.015"x24"x72" |
.150"x15"x72" |
| .050" DIA X R/L |
.005" |
.020"x24"x72" |
.187"x15"x72" |
| .060" DIA X R/L |
.006" |
.025"x24"x72" |
.250"x15"x72" |
| .062" DIA X R/L |
.007" |
.030"x24"x72" |
.312"x15"x72" |
| .100" DIA X R/L |
.008" |
.040"x24"x72" |
.375"x15"x72" |
| 1/8" DIA X 12 ft |
.010" |
.050"x24"x72" |
.437"x15"x72" |
| 1/4" DIA X 12 ft |
.012" |
.060"x24"x72" |
.500"x15"x72" |
| 5/16" DIA X 12 ft |
.015" |
.072"x24"x72" |
.625"x15"x72" |
| 3/8" DIA X 12 ft |
.020" |
.080"x24"x72" |
.750"x15"x72" |
| 7/16" DIA X 12 ft |
.025" |
.090"x12"x72" |
.875"x15"x72" |
| 1/2" DIA X 12 ft |
.030" |
.100"x12"x72" |
1.00"x15"x72" |
| 5/8" DIA X 12 ft |
.035" |
.125"x12"x72" |
1.50"x15"x72" |
| 11/16" DIA X 12 ft |
.040" |
|
2.00"x15"x72" |
| 3/4" DIA X 12 ft |
.050" |
|
3.00"x15"x72" |
| 13/16" DIA X 12 ft |
.060" |
|
4.00"x15"x72" |
| 7/8" DIA X 12 ft |
.070" |
|
5.00"x15"x72" |
| 15/16" DIA X 12 ft |
|
|
6.00"x15"x72" |
| 1" DIA X 12 ft |
|
|
|
| 1-1/16" DIA X 12 ft |
|
|
|
| 1-1/8" DIA X 12 ft |
|
|
|
| 1-1/4" DIA X 12 ft |
|
|
|
| 1-3/8" DIA X 12 ft |
|
|
|
| 1-1/2" DIA X 12 ft |
|
|
|
| 1-5/8" DIA X 12 ft |
|
|
|
| 1-3/4" DIA X 12 ft |
|
|
|
| 2" DIA X 12 ft |
|
|
|
| 2-1/8" DIA X 12 ft |
|
|
|
| 2-1/4" DIA X 12 ft |
|
|
|
| 2-1/2" DIA X 12 ft |
|
|
|
| 2-3/4" DIA X 12 ft |
|
|
|
| 3" DIA X 12 ft |
|
|
|
| 3-1/2" DIA X 12 ft |
|
|
|
| 4" DIA X 12 ft |
|
|
|
| 5" DIA X 12 ft |
|
|
|
|
|
|
|
* Custom sizes furnished quickly by forging, hot rolling, or
cold finishing.
Invar and Kovar are registered trademarks of CRS Holding,
a subsidiary of Carpenter Technologies.
