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.
* Custom sizes furnished quickly by forging, hot rolling, or
cold finishing.
| Kovar® Rod: (diameters) | ||
| .040″ DIA X R/L | .050″ DIA X R/L | .060″ DIA X R/L |
| .062″ DIA X R/L | .100″ DIA X R/L | 1/8″ DIA X 12 ft |
| 1/4″ DIA X 12 ft | 5/16″ DIA X 12 ft | 3/8″ DIA X 12 ft |
| 7/16″ DIA X 12 ft | 1/2″ DIA X 12 ft | 5/8″ DIA X 12 ft |
| 11/16″ DIA X 12 ft | 3/4″ DIA X 12 ft | 13/16″ DIA X 12 ft |
| 7/8″ DIA X 12 ft | 15/16″ DIA X 12 ft | 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 | ||
| Kovar® coil: (thickness) | ||
| .004″ | .005″ | .006″ |
| .007″ | .008″ | .010″ |
| .012″ | .015″ | .020″ |
| .025″ | .030″ | .035″ |
| .040″ | .050″ | .060″ |
| .070″ | ||
| Kovar® Sheet: | ||
| .015″x 24″x 72″ | .020″x 24″x 72″ | .025″x 24″x 72″ |
| .030″x 24″x 72″ | .040″x 24″x 72″ | .050″x 24″x 72″ |
| .060″x 24″x 72″ | .072″x 24″x 72″ | .080″x 24″x 72″ |
| .090″x 12″x 72″ | .100″x 12″x 72″ | .125″x 12″x 72″ |
| Kovar® Plate: | ||
| .150″x 15″x 72″ | .187″x 15″x 72″ | .250″x 15″x 72″ |
| .312″x 15″x 72″ | .375″x 15″x 72″ | .437″x 15″x 72″ |
| .500″x 15″x 72″ | .625″x 15″x 72″ | .750″x 15″x 72″ |
| .875″x 15″x 72″ | 1.00″x 15″x 72″ | 1.50″x 15″x 72″ |
| 2.00″x 15″x 72″ | 3.00″x 15″x 72″ | 4.00″x 15″x 72″ |
| 5.00″x 15″x 72″ | 6.00″x 15″x 72″ | |
Invar® and Kovar® are registered trademarks of CRS Holding,
a subsidiary of Carpenter Technologies.
*We don’t sell these products to metals distributors
