Zhengzhou Sanhui Refractory Metal Co., Ltd.
Zhengzhou Sanhui Refractory Metal Co., Ltd.
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Tungsten Copper Alloy W70Cu30 Electrode Rod With 175HB Hardness
Charateristics of Tungsten Copper Alloys:
Tungsten copper alloy has some advantages of both tungsten and copper. It has the characteristics of high temperature resistance, arc burning resistance, high strength, large ratio, good conductivity and thermal conductivity, small thermal expansion, easy turning and processing, and sweating cooling.
Chemical Composition of Copper Tungsten Alloys
| Type | chemical composition of copper tungsten alloy(%) | resistivity(cm) | tensile strength(kg/mm2) | hardness | density(g/cm3) | |
| W | Cu | |||||
| F6002E | 60 | balance | <=3.26*10-6 | >=130 | >=160 | >=12.70 |
| 70 | <=3.80*10-6 | >=200 | >=13.80 | |||
| 80 | <=4.00*10-6 | >=220 | >=15.00 | |||
Physical Properties of Tungsten Copper Alloys
| Brand and NO. | Chemical components% | Physical properties | ||||||
|
Cu | Total impurities ≤ |
W | Density (g/cm³) ≥ | Hardness HB ≥ | Resistivity (µΩ·cm) ≤ | Conductivity IACS%≥ | Bending strength Mpa≥ | |
| CuW(50) | 50±2.0 | 0.5 | Bal. | 11.85 | 115 | 3.2 | 54 | |
| CuW(55) | 45±2.0 | 0.5 | Bal. | 12.30 | 125 | 3.5 | 49 | |
| CuW(60) | 40±2.0 | 0.5 | Bal. | 12.75 | 140 | 3.7 | 47 | |
| CuW(65) | 35±2.0 | 0.5 | Bal. | 13.30 | 155 | 3.9 | 44 | |
| CuW(70) | 30±2.0 | 0.5 | Bal. | 13.80 | 175 | 4.1 | 42 | 790 |
| CuW(75) | 25±2.0 | 0.5 | Bal. | 14.50 | 195 | 4.5 | 38 | 885 |
| CuW(80) | 20±2.0 | 0.5 | Bal. | 15.15 | 220 | 5.0 | 34 | 980 |
| CuW(85) | 15±2.0 | 0.5 | Bal. | 15.90 | 240 | 5.7 | 30 | 1080 |
| CuW(90) | 10±2.0 | 0.5 | Bal. | 16.75 | 260 | 6.5 | 27 | 1160 |
Tungsten Copper Alloys Applications:
Tungsten copper alloys are widely used in welding electrode, arc contact and vacuum contact of high and medium voltage circuit breaker, EDM electrode and other industries.
Pictures of copper tungsten alloy products:
