High Temperature Resistance Tungsten Copper Alloy W80Cu20 used for
Vacuum Contact Material
Tungsten Copper alloy Properties:
Tungsten copper alloy is a pseudo alloy with two-phase structure,
which is based on tungsten and vice composed of copper. It is a
composite material in metal due to the great difference in physical
properties between copper and tungsten, melting and casting can not
be used for production. Now, powder alloy technology is generally
used for production.
Tungsten copper alloy has some advantages of both tungsten and
copper, such as high temperature resistance, high strength, arc
burning resistance, good conductivity and thermal conductivity,
small thermal expansion, easy processing, etc.
Tungsten copper alloy applications:
Tungsten copper alloy is widely applied in welding electrode, arc
contact and vacuum contact of high and medium voltage circuit
breaker, EDM electrode and other industries.
High performance materials for Aerospace: tungsten copper alloys
have high density, sweating cooling performance, high high
temperature strength and erosion and ablation resistance.
Tungsten copper alloys can be applied as vacuum contact material.
Advantages: high ablation resistance, high toughness, good electric
conductivity and thermal conductivity. Good machining performance.
Tungsten Copper Alloy types,chemical compositions and main
properties:
| 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 |
| 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 |
We make various tungsten copper components as per customized
drawing and rich experience in related field.
