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H.C. Starck WCu 70/30 Tungsten-Copper Composite Material

Category Metal , Metal Matrix Composite , Nonferrous Metal , Refractory Metal , Tungsten Alloy
Manufacturer H.C. Starck
Trade Name
Port Ningbo port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF H.C. Starck WCu 70/30 Tungsten-Copper Composite Material.pdf
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Material Notes:
Description of Product: Tungsten-copper composite materials are produced by copper infiltration of porous sintered tungsten. They are available with different copper contents (10 - 30 %). A thermal conductivity over 200 W/m K is producible.Range of Application: Switching contacts for high-voltage and medium-voltage, heat sinks for passive thermal management, electrodes for erosive processing.Information provided by H.C. Starck.
Physical Properties Metric English Comments
Density 14.1 - 14.5 g/cc
0.509 - 0.524 lb/in³
Mechanical Properties Metric English Comments
Hardness, Brinell 160 - 220

@Load 62.5 kg
160 - 220

@Load 138 lb
2.5 mm ball
Tensile Strength, Ultimate >= 350 MPa
>= 50800 psi
Modulus of Elasticity 220 GPa
31900 ksi
Thermal Properties Metric English Comments
CTE, linear 8.80 µm/m-°C

@Temperature 20.0 - 100 °C
4.89 µin/in-°F

@Temperature 68.0 - 212 °F
9.20 µm/m-°C

@Temperature 20.0 - 300 °C
5.11 µin/in-°F

@Temperature 68.0 - 572 °F
9.50 µm/m-°C

@Temperature 20.0 - 450 °C
5.28 µin/in-°F

@Temperature 68.0 - 842 °F
Thermal Conductivity 150 - 240 W/m-K
1040 - 1670 BTU-in/hr-ft²-°F
Component Elements Properties Metric English Comments
Copper, Cu 27 - 33 %
27 - 33 %
Tungsten, W 67 - 73 %
67 - 73 %
Electrical Properties Metric English Comments
Volume Resistivity 0.0000040 ohm-cm
0.0000040 ohm-cm
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