FOB Price
Get Latest Price|
Minimum Order
Place of Origin:
China
Price for Minimum Order:
-
Minimum Order Quantity:
50 kg
Packaging Detail:
-
Delivery Time:
-
Supplying Ability:
5000 kg
Payment Type:
-
Contact Person Ms. Annie
Baoji, Shaanxi
Kovar is one of the most popular of the controlled expansion alloys for hermetic sealing applications. Note: A nickel-iron-cobalt controlled-expansion alloy containing *9% nickel. Its coefficient of expansion, which decreases with rising temperature to the inflection point, matches the expansion rate of borosilicate glasses and alumina ceramics. Used for glass-to-metal seals in applications requiring high reliability or resistance to thermal shock. Examples are high-power transmitting valves, transistor leads and headers, integrated-circuit lead frames, and photography flash bulbs. Chemistry By % Weight C: 0.*2% Max Co: *7% Fe: Balance Mn: 0.3% Ni: *9% Si: 0.2%
