4J78, 4J80, 4J82 non-magnetic expansion alloy features
In the range of room temperature to 600 ℃, it has a medium linear thermal expansion coefficient, non-magnetic, corrosion resistance, and has high strength and toughness.
4J78, 4J80, 4J82 non-magnetic expansion alloy
Used as a non-magnetic non-matching porcelain sealing material in gyroscopes and other electrical vacuum devices.
chemical composition(%)
|
Alloy |
C≤ |
S≤ |
P≤ |
Si≤ |
Mn≤ |
Cu |
Mo |
W |
Ni |
|
4J78 |
0.05 |
0.02 |
0.02 |
0.30 |
0.40 |
≤1.5 |
20.0~22.0 |
- |
margin |
|
4J80 |
0.05 |
0.02 |
0.02 |
0.30 |
0.40 |
1.5~2.5 |
9.50~11.0 |
9.5~11.5 |
margin |
|
4J82 |
0.05 |
0.02 |
0.02 |
0.30 |
0.40 |
- |
17.5~19.7 |
- |
margin |
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
