Customized Tungsten-Copper Alloys from China Suppliers and Factory 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 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 | 12.3 | 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 | 13.3 | 155 | 3.9 | 44 | - |
| CuW(70) | 30+2.0 | 0.5 | Balance | 13.8 | 175 | 4.1 | 42 | 790 |
| CuW(75) | 25+2.0 | 0.5 | Balance | 14.5 | 195 | 4.5 | 38 | 885 |
| CuW(80) | 20+2.0 | 0.5 | Balance | 15.15 | 220 | 5 | 34 | 980 |
| CuW(85) | 15+2.0 | 0.5 | Balance | 15.9 | 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 (W-Cu) alloy?
Tungsten Copper (WCu) alloy is a pseudo-alloy composed of tungsten and copper. It combines the low thermal expansion and high wear resistance of tungsten with the high electrical and thermal conductivity of copper.
What are the main applications of WCu alloy?
WCu alloys are widely used in high-voltage electrical contacts, EDM (Electrical Discharge Machining) electrodes, semiconductor heat sinks/spreaders, aerospace heat shields, and military applications.
How does the ratio of tungsten to copper affect the performance?
Higher tungsten ratio (e.g., CuW80, CuW90) increases hardness, density, and strength while lowering thermal expansion. Higher copper ratio (e.g., CuW50, CuW60) improves thermal and electrical conductivity.
Why use Tungsten Copper for heat sinks and spreaders?
WCu offers tailorable thermal expansion coefficients (CTE) that can be matched precisely with semiconductor materials like Si, GaAs, and GaN, minimizing thermal stress while effectively dissipating high heat loads.
Can customized specifications and complex geometries be manufactured?
Yes, Zhuzhou Jiuding Metal Technology Co., Ltd provides custom processing for rods, bars, tubes, ultra-thin sheets, bricks, and custom-machined components based on customer design requirements.