4J42, 4J45, 4J50, 4J52, 4J54 Features
Within a given temperature range, it has a certain linear expansion coefficient.
4J42, 4J45, 4J50, 4J52, 4J54 iron nickel seal bonding gold
Used for matching sealing of soft glass or ceramic in the electric vacuum industry.
chemical composition(%)
|
alloy |
C≤ |
S≤ |
P≤ |
Mn≤ |
Si≤ |
Co≤ |
Al≤ |
Ni |
Fe |
|
4J42 |
0.05 |
0.02 |
0.02 |
0.80 |
0.30 |
0.1 |
0.1 |
41.5 42.5 |
余量 |
|
4J45 |
0.05 |
0.02 |
0.02 |
0.80 |
0.30 |
|
≤0.1 |
44.5 45.5 |
余量 |
|
4J50 |
0.05 |
0.02 |
0.02 |
0.80 |
0.30 |
|
≤0.1 |
49.5 50.5 |
余量 |
|
4J52 |
0.05 |
0.02 |
0.02 |
0.80 |
0.30 |
|
|
51.5 52.5 |
余量 |
|
4J54 |
0.05 |
0.02 |
0.02 |
0.80 |
0.30 |
|
|
53.5 54.5 |
余量 |
Average linear expansion coefficient
|
alloy |
Sample heat treatment system |
Average linear expansion coefficient a/10-6·K-1 |
||
|
20~300℃ |
20~400℃ |
20~450℃ |
||
|
4J42 |
In a hydrogen atmosphere, heat the sample to 900 ± 20 ° C, hold it for 1 hour, and cool it to 200 ° C or less at a rate of not more than 5 ° C / min. |
4.0~5.0 |
- |
6.5~7.5 |
|
4J45 |
6.5~7.2 |
6.5~7.2 |
- |
|
|
4J50 |
9.2~10.0 |
9.2~9.9 |
- |
|
|
4J52 |
9.8~11.0 |
9.8~11.0 |
- |
|
|
4J54 |
10.2~11.4 |
10.2~11.4 |
- |
|
The above data is for reference only. Please contact us for specific requirements
Shenzhen Zhengjie Metal Material Co., Ltd.
Contact person: Mr. Huang (13480167607)
Sales Hotline: 0755-81718772
Q Q: 2263040115 305084123
Website: www.szzj168.com
Email: 2263040115@qq.com
Address: No. 8, Songzi Park, Minzhi, Longhua New District,Shenzhen
