Kovar® is a nickel-iron-cobalt alloy with a coefficient of thermal expansion like that of hard glass. Since Kovar Alloy is tough and versatile, while employing extensive quality controls throughout UNS K94610 alloy’s manufacturing process to ensure uniform physical and mechanical properties for ease in deep drawing, stamping and machining are consistently achieved. Furthermore, the coefficient of thermal expansion (CTE) of Kovar® is its most dynamic mechanical property. It's expansion characteristics match both borosilicate (or Pyrex) glasses and alumina ceramics. This alone ensures it is a highly popular controlled expansion alloys for hermetic sealing applications (also known as Glass to Metals Sealing).
Kovar is used for:
- Hermetic sealing
- Production of transistors and diodes in electronic industry
- Vacuum systems in chemistry and scientific research
- Electronic tubes (power, microwave, X-Ray)
- Hybrid circuit casings
- Oscillator housings
- Concentrated solar power
- Scientific instruments
|Curie Temp||°F 815||°C 435|
|Melting Point||°F 2640||°C 1449|
|Modulus of Elasticity at 20°C||MPa||207|
|Specific Heat||J/g- °C||0.11|
|Thermal Conductivity at 20°C||W/m.k||17.3|
Material is mainly used in bars or as wire. Various dimensions are available upon request.
ECONOXX.com offers buyers a new and uncomplicated procurement channel, which also includes small quantities and materials in special alloys at favourable conditions.
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