4J06, 4J47, 4J49, 4J6A, 4J6B, 4J49A Fe-Ni-Cr Expansion Alloy Features
Within a certain temperature range, it has a linear expansion coefficient similar to that of soft glass.
4J06, 4J47, 4J49, 4J6A, 4J6B, 4J49A Fe-Ni-Cr Expansion Alloy Features and Applications
In the electric vacuum industry, matching sealing is performed with the corresponding soft glass. Among them, 4J49A and 4J6A can be used to make the anode cap of the picture tube, and the vacuum fluorescent display is lined up.
chemical composition(%)
|
alloy |
Mn |
Si |
B |
Al |
Ni |
Cr |
Fe |
|
no greater than |
|||||||
|
4J06 |
0.25 |
0.30 |
- |
0.20 |
41.5~42.5 |
5.50~6.30 |
margin |
|
4J47 |
0.40 |
0.30 |
- |
- |
46.8~47.8 |
0.80~1.40 |
margin |
|
4J49 |
0.40 |
0.30 |
0.02 |
- |
46.0~48.0 |
5.00~6.00 |
margin |
|
4J6A |
0.15~0.30 |
0.15~0.30 |
- |
0.30 |
41.5~42.5 |
5.40~6.20 |
margin |
|
4J6B |
0.15~0.30 |
0.15~0.30 |
- |
0.1~0.20 |
41.5~42.5 |
5.40~5.90 |
margin |
|
4J49A |
0.10~0.30 |
0.10~0.30 |
- |
0.10~0.25 |
46.0~48.0 |
5.80~6.50 |
margin |
Average linear expansion coefficient
|
alloy |
Sample processing |
Average linear expansion coefficient a/10-6·K-1 |
|
|
20~300℃ |
20~400℃ |
||
|
4J06 |
In a hydrogen atmosphere, heat the sample to 1100 ± 20 ° C, hold it for 15 minutes, and cool it to 200 ° C or less at a rate of not more than 5 ° C / min. |
7.60~8.30 |
9.50~10.20 |
|
4J47 |
- |
8.10~8.70 |
|
|
4J49 |
8.60~9.30 |
9.40~10.10 |
|
|
4J6A |
In a protective atmosphere or vacuum, heat to 850 ° C to 900 ° C, keep it for 1 hour, and cool it down to 400 ° C or less at a rate of not more than 300 ° C / h. |
- |
9.50~10.20 |
|
4J6B |
- |
9.60~10.20 |
|
|
4J49A |
- |
9.90~10.60 |
|
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
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