What Is Tungsten Copper Plate?
Tungsten copper plate is a composite material made by combining tungsten and copper through a specific process. This material combines the high melting point, hardness, density, and wear resistance of tungsten with the excellent electrical and thermal conductivity of copper. Tungsten copper plates are commonly used in electrical discharge machining (EDM) electrodes, high-voltage electrical contacts, conductive and heat dissipation components, and other applications requiring high temperature resistance, electrical conductivity, and thermal conductivity. The ratio of tungsten to copper can be adjusted according to usage requirements to achieve different physical and mechanical properties.
Tungsten Copper Plate Dimensions
Thickness:2-50mm
Width:<390mm
Length:<500mm
Our company also customizes the dimensions of tungsten copper plates according to customer requirements.
Standard Stock
| Thickness | Width | Length |
| 2-50mm | 100mm | 100mm |
| 100mm | 200mm | |
| 200mm | 300mm | |
| 300mm | 400mm |
Tungsten Copper Material Properties
| Grade | Cu%（WT） | W%（WT） | RWMA | Density g/cm3 | Conductivity | Hardness | Thermal Conductivity | Thermal expansion coefficient |
| Class | (Min) | (Min) | (Min) | |||||
| CuW55 | 45±2 | Balance | 10 | 12.30g/cm3 | 49%IACS | 125HB | ~260(W/mK) | ~11.7(10-6/K) |
| CuW60 | 40±2 | Balance | 12.75g/cm3 | 47%IACS | 140HB | |||
| CuW65 | 35±2 | Balance | 13.30g/cm3 | 44%IACS | 155HB | |||
| CuW70 | 30±2 | Balance | 13.80g/cm3 | 42%IACS | 175HB | ~240(W/mK) | ~9.7(10-6/K) | |
| CuW75 | 25±2 | Balance | 11 | 14.50g/cm3 | 38%IACS | 195HB | 200~230 (W/mK) | 9.0~9.5 (10-6/K) |
| CuW80 | 20±2 | Balance | 12 | 15.15g/cm3 | 34%IACS | 220HB | 190~210(W/mK) | 8.0~8.5 (10-6/K) |
| CuW85 | 15±2 | Balance | 15.90g/cm3 | 30%IACS | 240HB | 180~200(W/mK) | 7.0~7.5(10-6/K) | |
| CuW90 | 10±2 | Balance | 16.80g/cm3 | 28%IACS | 260HB | 160~180(W/mK) | 6.3~6.8(10-6/K) |
Manufacturing Processes
Application
●Arc contacts and vacuum contacts for high and medium voltage switches or circuit breakers
●Electrodes for electrical discharge machining (EDM)
●High-temperature resistant materials
●Heat dissipation devices used in electronic equipment
●Electrodes for resistance welding
●Electronic packaging and heat sink materials
●Electrodes and nozzles are used in plasma spraying equipment
