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Transportation:Ocean
Port:SHANGHAI
Model No.: kovar
Origin: CHINA
Place Of Origin: China
Packaging: We offer varied packaging in the form of coils, spools or as per customer required
Transportation: Ocean
Place of Origin: CHINA
Supply Ability: 3000 Ton/Tons per Year
Port: SHANGHAI
Kovar alloy is a iron-nickel-cobalt, low expansion alloy whose chemical composition is controlled within narrow
limits to assure precise uniform thermal expansion properties. Kovar alloy has been used for making hermetic seals with the harder Pyrex glasses and ceramic materials.
Kovar Specification
| ASTM | UNS | W.Nr |
| F15 | K94610 | 1.3981 |
Kovar Chemical composition
| Grade | % | Ni | Cr | Fe | Co | Cu | C | Mn | Si | P | S | Mo |
| Kovar | Min | 28.5 |
| Bal. | 16.8 |
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| Max | 29.5 | 0.2 | 17.8 | 0.20 | 0.03 | 0.50 | 0.30 | 0.02 | 0.02 | 0.20 |
Kovar Coefficient of linear expansion
| Grade | a/10-6·K-1 | ||
| Kovar | 200-300°C | 20-400°C | 20-450°C |
| / | 4.6-5.2 | 5.1-5.5 | |
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