Copper-chromium (CuCr) Contact for Vacuum Interrupter
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Product Details:
1.The chemical composition and properties:
Material | Chemical Compositions (wt%) | Mechanical Properties | |||||
Cu | Cr | Gas Content | Hardness HB (Mpa) | Density (g/cm3) | Electrical Conductivity (Ms/m) | ||
O | N | ||||||
CuCr50I | Balance | 47.1-52.0 | <0.050 | <0.0040 | 80-120 | =7.90 | =16.0 |
CuCr10C | Balance | 7.0-12.0 | <0.050 | <0.0030 | 70-100 | =8.60 | =40.0 |
CuCr25C | Balance | 24.0-28.0 | <0.080 | <0.0050 | 70-105 | =8.30 | =28.0 |
CuCr30C | Balance | 28.1-33.0 | <0.080 | <0.0050 | 75-110 | =8.20 | =26.0 |
CuCr40C | Balance | 37.0-42.0 | <0.080 | <0.0050 | 80-120 | =8.00 | =20.0 |
CuCr40A | Balance | 37.0-43.0 | <0.060 | <0.0030 | 85-125 | =8.00 | =20.0 |
CuCr50A | Balance | 47.0-52.0 | <0.060 | <0.0030 | 85-140 | =7.90 | =18.0 |
CuCr25P | Balance | 24.0-28.0 | =0.060 | =0.0050 | 70-105 | =8.10 | =28.0 |
CuCr30P | Balance | 28.1-33.0 | =0.065 | =0.0050 | 75-110 | =7.90 | =26.0 |
Remark: C-vacuum casting;I-vacuum infiltration; A-vacuum arc-melting; P-Powder sintering
2.Some results of type tests as follow:
Material | Voltage | Contact Size | Rated current/Rated short-circuit current |
CuCr50I | 126kV | Ø100×5mm | 2000A/40kA |
40.5kV | Ø79×4.5mm | 2000A/31.5kA | |
Ø76×5mm | 1600A/25kA | ||
12kV | Ø70×4mm | 1600A/40kA | |
Ø82×5mm | 3150A/50kA | ||
Ø122×6mm | 6300A/80kA |
3.At the customer's request, contact parts can be customized by special design.
4. Free samples can be offered.
5. Contact material in VI.
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