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By certification 
W-Cu Contacts for vacuum application
CuW contact materials have low chopping value,high anti-arc ablation and excellent breaking performance.The materials are widely used in low and medium voltage vacuum contactor and vacuum load switch.We have built a vacuum infiltration production line for such contact materials,which has annual capacity of 1 million pieces.
Product Details:
1.The chemical composition and properties：
Material |
Chemical Compositions (wt%) |
Mechanical Properties |
|||||
Cu |
WC/(Cr) |
Oxygen |
Nitrogen |
Hardness HB(Mpa) |
Density (g/cm3) |
Electrical Conductivity (Ms/m) |
|
CuW-WC |
28±2 |
25±2 |
＜0.0060 |
＜0.0020 |
≥196 |
≥13.5 |
≥20 |
CuCrW |
50±2 |
27-32 |
＜0.0080 |
＜0.0050 |
≥100 |
≥9.1 |
≥18 |
2.CuW contact materials can be produced with different sizes at client’request.
http://www.sirui-material.com/
