Good Thermal Conductivity AMS 7726B Kovar Plate UNS K94610
Kovar Plate is an iron-cobalt-nickel alloy with a coefficient
of thermal expansion similar to that of hard glass. Because Kewa
alloys are tough and versatile, extensive quality control is
applied in the manufacturing of UNS K94610 alloys to ensure
consistent physical and mechanical properties, making stretching,
stamping and machining easier. In addition, Kovar, it is the most
dynamic mechanical property.
Product Advantages of Kovar Plate
Expansion alloy Kovar is precisely formulated and controlled to
produce a coefficient of thermal expansion that is very close to
that of hard glass or ceramic, meaning that it expands and
contracts at a similar rate. It is therefore perfect in
applications where it is used in conjunction with glass or ceramic
materials, especially where a hermetic seal must be maintained
across a wide temperature range. Other key Kovar benefits include:
- Extremely low coefficient of thermal expansion (CTE)
- Metal stamping capabilities
- Advanced dimensional stability
Chemical Composition of Kovar Alloy Plate
| Chemical Compositions |
| Element | Content |
| NICKEL (Ni) | 29 |
| COBALT (Co) | 17 |
| MANGANESE(Mn) | 0.5 |
| SILICON (SI) | 0.2 |
| SULFUR (S) | 0.025 |
| CHROMIUM(Cr) | 0.2 |
| COPPER (Cu) | 0.2 |
| MOLYBDENUM (Mo) | 0.2 |
| ZIRCONIUM (Zr) | 0.1 |
| PHOSPHORUS (P) | 0.025 |
| CARBON (C) | 0.06 |
| IRON | BALANCE |
Kovar Plate Picture:
Application of Kovar Alloy Plate
It is suitable for transmitting tube, oscillating tube,
ignition tube, transistor, tube sealing plug, relay shell and other
electric vacuum devices. It has a certain linear expansion
coefficient in the temperature range of 20 ℃ - 450 ℃, which can
match with hard glass and seal firmly.
Purpose: To make iron nickel cobalt alloy bars, bars, plates and
tubes with hard glass. Suitable for transmitting tube, oscillating
tube, ignition tube, transistor, tube sealing plug, relay shell and
other electric vacuum devices. It has a certain linear expansion
coefficient in the temperature range of 20 ℃ - 450 ℃, which can
match with hard glass and seal firmly.
