Alloy 42 Wire, ASTM F30, Chinese 4J42 , UNS K94100, Fe-42 Ni
1. Under condition that the average coefficient of the linear expansion meets the requirements of the standard, the content of nickel and cobalt are allowed to deviate from the stated range;
2. The shape and dimensions of the alloys are in compliance with YB/T5235;
3. It is applied to soft glass-to-metal and ceramic-to-metal seals in electronic component.
Grade |
Chemical Composition (%) |
||||||||||
C |
P |
S |
Mn |
Si |
B |
Al |
Co |
Ni |
Cr |
Fe |
|
≤ | |||||||||||
4J42 |
0.05 |
0.020 |
0.020 |
0.80 |
0.30 |
|
0.10 |
1.0 |
41.5~42.5 |
|
Balance |




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