Pure Copper Tungsten Sheet CuW50-CuW85 0.1-5mm Thickness for Thermal Management
High-performance copper tungsten sheet with tunable CTE (5.6-7.0×10⁻⁶/K) and thermal conductivity up to 220 W/mK. Ideal for RF, microwave, and power diode packaging. Custom sizes and nickel/gold plating available. Durable, arc-resistant, and low expansion.
Pure Copper Tungsten Sheet
Pure Copper Tungsten Sheet
1. Main grades: CuW50, CuW55, CuW60, CuW65, CuW70, CuW85
2. Length: 5mm-200mm
3. Width: 5mm-200mm
4. Thickness: 0.1mm-5.0mm
5. Semi-finished or finished (nickel/gold) products can be provided
Copper-tungsten sheet is a composite material of tungsten and copper. The coefficient of thermal expansion (CTE) of the composite can be designed by controlling the content of tungsten to match with ceramic (Al2O3, BeO), semiconductor (Si), metal (Kovar) and other materials. Widely used in RF, microwave, high-power diode packaging and optical communication systems and other fields.
It not only has the low expansion of tungsten and the high thermal conductivity of copper. Its expansion index and thermal conductivity can also be changed by changing the content of the material, which provides convenience for the use of the material. We can provide copper-tungsten sheets with various specifications and different tungsten ratios.
Advantages of copper tungsten alloy
High arc resistance and good electrical conductivity
High thermal conductivity
low thermal expansion
Copper Tungsten Sheet Picture:
The data of copper tungsten sheet
| Composition (Wt%) |
W 90% Cu 10% |
W 88% Cu 12% |
W 85% Cu 15% |
W 80% Cu 20% |
| Density (g/cm3) |
17.0 | 16.6 | 16.4 | 15.5 |
| Coefficient of Thermal Expansion(10-6/K) |
5.6 | 5.7 | 5.8 | 7.0 |
| Thermal Conductivity (W/mK) |
180 | 188 | 196 | 220 |
| Specific Heat Capacity (J/kgK) |
155 | 165 | 175 | 190 |
| Young’s Modulus (Gpa) |
325 | 315 | 305 | 278 |
| Specific Electrical Resistance(uΩm) |
0.047 | 0.045 | 0.042 | 0.035 |
| Vickers Hardness (HV10) |
300 | 295 | 275 | 255 |
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