Customized Tungsten-Copper Alloys from China Suppliers - High-Quality Factory Products for Industrial Applications
Physical Properties of Tungsten and Copper
| Properties | Density (g/cm³) |
Thermal Expansion Coefficient (10⁻⁶/℃) |
Heat Conductivity (W/(m·K)) |
Thermal Capacity (J/(kg·℃)) |
Modulus of Elasticity (GPa) |
Poisson's Ratio | Melting Point (℃) |
Strength (MPa) |
|---|---|---|---|---|---|---|---|---|
| Tungsten | 19.32 | 4.5 | 174 | 136 | 411 | 0.28 | 3410 | 550 |
| Copper | 8.93 | 16.6 | 403 | 385 | 145 | 0.34 | 1083 | 120 |
Specifications of WCu Alloy
| Code No. | Chemical Composition (%) | Mechanical Properties | ||||||
|---|---|---|---|---|---|---|---|---|
| Cu | Impurity | W | Density (g/cm³) | Hardness (HB) | RES (μΩ·cm) | Conductivity (% IACS) | TRS (MPa) | |
| CuW(50) | 50 ± 2.0 | 0.5 | Balance | 11.85 | 115 | 3.2 | 54 | - |
| CuW(55) | 45 ± 2.0 | 0.5 | Balance | 12.30 | 125 | 3.5 | 49 | - |
| CuW(60) | 40 ± 2.0 | 0.5 | Balance | 12.75 | 140 | 3.7 | 47 | - |
| CuW(65) | 35 ± 2.0 | 0.5 | Balance | 13.30 | 155 | 3.9 | 44 | - |
| CuW(70) | 30 ± 2.0 | 0.5 | Balance | 13.80 | 175 | 4.1 | 42 | 790 |
| CuW(75) | 25 ± 2.0 | 0.5 | Balance | 14.50 | 195 | 4.5 | 38 | 885 |
| CuW(80) | 20 ± 2.0 | 0.5 | Balance | 15.15 | 220 | 5.0 | 34 | 980 |
| CuW(85) | 15 ± 2.0 | 0.5 | Balance | 15.90 | 240 | 5.7 | 30 | 1080 |
| CuW(90) | 10 ± 2.0 | 0.5 | Balance | 16.75 | 260 | 6.5 | 27 | 1160 |
Products of Our Tungsten Copper Alloy
Tungsten copper alloy offered by Zhuzhou Jiuding Metal Technology Co., Ltd. mainly include Tungsten Copper Alloy Heat Sink, Tungsten Copper Alloy Heat Spreader, Tungsten Copper Alloy Heat Base, Tungsten Copper Alloy Components, Tungsten Copper Alloy Electrical, Tungsten Copper Alloy Military, Tungsten Copper Alloy Bar, Tungsten Copper Alloy Rod, Tungsten Copper Alloy Tube, Tungsten Copper Alloy Brick, Tungsten Copper Ultra Thin Sheet, Tungsten Copper Alloy Wire etc. We also can manufacture various specifications of tungsten copper alloy.
Frequently Asked Questions (FAQ)
What is Tungsten Copper (WCu) alloy?
Tungsten copper alloy (WCu) is a composite material formed by tungsten and copper through a powder metallurgy process. It combines the high hardness, high melting point, and low thermal expansion of tungsten with the exceptional electrical and thermal conductivity of copper.
How does the tungsten content affect alloy performance?
A higher tungsten ratio (such as CuW80, CuW85, CuW90) increases hardness, density, and tensile strength (TRS), making it ideal for arc-resistant electrical contacts and wear parts. Lower tungsten/higher copper ratios (such as CuW50, CuW55) offer superior electrical and thermal conductivity, suitable for thermal management.
Why is WCu alloy widely used in heat sinks and spreaders?
WCu alloys possess tailored thermal expansion coefficients that can match semiconductor materials (such as GaAs, Si, and ceramics) while delivering excellent heat dissipation efficiency, effectively preventing thermal fatigue in microelectronic devices.
What product forms of tungsten copper are available?
Zhuzhou Jiuding Metal Technology Co., Ltd. provides a wide range of product formats including bars, rods, tubes, bricks, ultra-thin sheets, wires, heat sinks, heat spreaders, baseplates, and precision machined components.
Can customized compositions and dimensions be manufactured?
Yes, we manufacture custom tungsten copper alloy specifications according to customer drawings, technical parameters, and specific industrial, electrical, or military application requirements.
What are the key application sectors for WCu alloy products?
Key industries include electrical engineering (high/medium voltage circuit breakers and contacts), EDM electrodes, optoelectronics packaging, heat dissipation for microelectronics, and defense/military aerospace components.