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| Brand Name : | JX |
| Model Number : | 4j29 Kovar Rod Bar |
| Certification : | ISO |
| Price : | Negotiable |
| Payment Terms : | L/C, T/T |
| Supply Ability : | 3000T |
| Delivery Time : | 35days |
General Description
4J29 Kovar Rod Bar also known as Fe-Ni-Co Glass Sealing Alloy. it was invented to meet
the need for a reliable glass-to-metal seal, which is required in
electronic devices such as light bulbs, vacuum tubes, cathode ray
tubes, and in vacuum systems in chemistry and other scientific
research.
Kovar Expansion Precision Alloy rod
(Common Name: Kovar, NiFeCo29, NiCoFe294,Nilo K)
Kovar alloy Rod Bar (ASTM F15) has been used for making hermetic seals with the harder Pyrex glasses and ceramic materials. 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.
Mainly used in electric vacuum components and emission control, shock tube, igniting tube, glass magnetron, transistors, seal plug, relay, integrated circuits lead, chassis, brackets and other housing sealing.
Kovar Rod Bar picture:



Chemical Domposition
| alloy | C | Mn | Si | P | S | Ni | Cr | Co | Cu | Mo | Fe |
| 4J29 | ≤0.03 | ≤0.50 | ≤0.30 | ≤0.020 | ≤0.020 | 28.5~29.5 | ≤0.20 | 16.8~17.8 | ≤0.2 | ≤0.2 | balance |
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| JINXING MATECH CO LTD |
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