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[China]
Trade Verify
Address: Room 311, No.1211, Mudanjiang Road, Baoshan district, Shanghai
Contact name:Qiu
Ohmalloy Material Co.,Ltd |
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Verified Suppliers
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| Kovar(4J29) Alloy Material | ||||||||||||
| Kovar/4J29/UNS K94610/W.Nr.1.3912 | ||||||||||||
Kovar glass sealed and controlled expansion alloys
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| Kovar (4J29) Chemical components | ||||||||||||
| C | Si | Mn | P | S | Ni | Fe | Cu | Cr | Co | Mo | ||
| max | 0.03 | 0.3 | 0.5 | 0.02 | 0.02 | 29.5 | bal | 0.2 | 0.2 | 17.8 | 0.2 | |
| min | 28.5 | 16.8 | ||||||||||
| Kovar (4J29)Mechanical property & Physical properties: | ||||||||||||
| Yield Strength | Tensile Strength | Elongation | Hardness | Density | Melting point | |||||||
| (Mpa) | (Mpa) | (%) | (HRC) | |||||||||
| 344 | 517 | 30 | 78HB | 8.36 g/cm3 | 1450 °C | |||||||
| Supply scope | ||||||||||||
| O.D: 0.20~100mm Wall thickness: 0.05~10mm The tolerance we could meet: Out diameter: ±0.003mm Wall thickness: ±0.005mm | ||||||||||||
| Coefficient of Thermal Expansion (Nominal): | ||||||||||||
| °C | 20-200 | 20-300 | 20-400 | 20-450 | 20-500 | 20-600 | 20-700 | 20-800 | ||||
| 10-6 /°C | 5.9 | 5.3 | 5.1 | 5.3 | 6.2 | 7.8 | 9.2 | 10.2 | ||||
| Kovar (4J29)Applied field: | ||||||||||||
| 1.Kovar alloy has been used for making hermetic seals with the harder Pyrex glasses and ceramic materials. | ||||||||||||
| 2.This alloy has found wide application in power tubes, microwave tubes, transistors and diodes. In integrated | ||||||||||||
circuits, it has been used for the flat pack and the dual-in-line package | ||||||||||||
Sales Manager:Michaeal Qiu.
What's App:+86 13795230939
Tel:+86-21-66796338 Mobile Phone: +86 13795230939
