Customized Tungsten-Copper Alloys from China Suppliers | High-Performance Products from Our Factory
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 | 5.0 | 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 (WCu) alloy?
Tungsten Copper (WCu) alloy is a composite material combining the high heat resistance, hardness, low thermal expansion, and density of tungsten with the superior electrical and thermal conductivity of copper.
What standard grades of WCu alloy are available?
Standard grades range from CuW(50) up to CuW(90). For example, CuW(70) consists of roughly 30% Cu and 70% W balance, providing balanced electrical conductivity (42% IACS) and high strength (790 MPa TRS).
What are the main applications of WCu alloys?
WCu alloys are widely utilized in thermal management (heat sinks, heat spreaders, and bases), electrical contacts, EDM electrodes, military components, and microelectronic packaging due to their tailored expansion and thermal dissipation capabilities.
How does the copper-to-tungsten ratio affect mechanical properties?
Higher copper ratios (such as CuW50) increase thermal and electrical conductivity, whereas higher tungsten ratios (up to CuW90) enhance density, hardness (up to 260 HB), and transverse rupture strength (up to 1160 MPa).
Can Zhuzhou Jiuding Metal Technology Co., Ltd produce custom forms and dimensions?
Yes, Zhuzhou Jiuding Metal Technology Co., Ltd manufactures custom specifications including bars, rods, tubes, bricks, ultra-thin sheets, wires, and finished machined components tailored to specific industrial requirements.