Kovar is a glass-to-metal sealing alloy covered by the ASTM F-15 specification.
We can supply Kovar in rod, sheet, and milled shapes and forgings.
Chemical Data, Mechanical Properties and Specifications for Kovar.
Chemical
| Nominal Chemical Range |
|---|
| Element |
Minimum |
Maximum |
| Carbon |
-- |
0.06 |
| Chromium |
-- |
0.20 |
| Cobalt |
-- |
17.0 |
| Copper |
-- |
0.20 |
| Iron |
Bal |
-- |
| Manganese |
-- |
0.50 |
| Molybdenum |
-- |
0.20 |
| Nickel |
-- |
29.0 |
| Phosphorus |
-- |
0.025 |
| Silicon |
-- |
0.20 |
| Sulfur |
-- |
0.025 |
| Zirconium |
-- |
0.10 |
Mechanical
| Typical Mechanical Properties |
|---|
| Temper |
Tensile Strength |
Yield Strength |
Elongation at Break |
| Annealed |
75 ksi |
50 ksi |
30.0% |
Specs
| Specifications |
| ASTM F15 |
| UNS K94610 |
