Overview
| Product characteristics | Glass sealing | Product name | Nickel iron alloy |
| Grade | 4J29 | producing area | Changzhou City |
| Nickel content | 28.5%~29.5% | Impurity content | 0.001% |
Product Details
Changzhou Brilliance Special Steel Co.,Ltd
Brand: Iron nickel cobalt alloy 4J29|KOVAR|ASTM F15 | K94610 | Nilo K
Executive standard: YB/T 5231-2005
Usage: Used for making iron nickel cobalt alloy strips, bars, plates, and pipes that match and seal with hard glass.
Suitable for transmitting tubes, oscillating tubes, ignition tubes, transistors, as well as tube sealing plugs and relaysShell and other electrical vacuum devices.
It has a certain coefficient of linear expansion within the temperature range of 20 ℃ -450 ℃ and can be matched and firmly sealed with hard glass. 4J29Chemical composition:
4J29Tensile strength of wire:
4J29Tensile strength of the strip:
4J29Average linear expansion coefficient of the alloy:
4J29Typical expansion coefficient of alloy: