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 |