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

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H.C. Starck WCu 70/30 Tungsten-Copper Composite Material
Categories:	Metal; Metal Matrix Composite; Nonferrous Metal; Refractory Metal; Tungsten Alloy
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.
Vendors:	Eagle Alloys Corporation is a leading supplier of quality metals and alloys. Our staff prides itself on working fast, efficiently and courteously to get you the information you need. Call (800) 237-9012 or visit www.EagleAlloys.com. Click here to view all available suppliers for this material. Please click here if you are a supplier and would like information on how to add your listing to this material.
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Physical Properties	Original Value	Comments

Density	14.1 - 14.5 g/cc

Mechanical Properties	Original Value	Comments
Hardness, Brinell	160 - 220 @Load 62.5 kg	2.5 mm ball
Tensile Strength, Ultimate	>= 350 MPa
Modulus of Elasticity	220 GPa

Electrical Properties	Original Value	Comments
Volume Resistivity	0.0000040 ohm-cm

Thermal Properties	Original Value	Comments
CTE, linear	8.80 µm/m-°C @Temperature 20.0 - 100 °C
	9.20 µm/m-°C @Temperature 20.0 - 300 °C
	9.50 µm/m-°C @Temperature 20.0 - 450 °C
Thermal Conductivity	150 - 240 W/m-K

Component Elements Properties	Original Value	Comments
Copper, Cu	27 - 33 %
Tungsten, W	67 - 73 %

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NHCST960 / 130849

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