H.C. Starck WCu 90/10 Tungsten-Copper Composite Material

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H.C. Starck WCu 90/10 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	Metric	English	Comments

Density	17.0 - 17.6 g/cc	0.614 - 0.636 lb/in³

Mechanical Properties	Metric	English	Comments
Hardness, Brinell	220 - 290 @Load 62.5 kg	220 - 290 @Load 138 lb	2.5 mm ball
Tensile Strength, Ultimate	>= 480 MPa	>= 69600 psi
Modulus of Elasticity	340 GPa	49300 ksi

Electrical Properties	Metric	English	Comments
Volume Resistivity	0.0000052 ohm-cm	0.0000052 ohm-cm

Thermal Properties	Metric	English	Comments
CTE, linear	6.10 µm/m-°C @Temperature 20.0 - 100 °C	3.39 µin/in-°F @Temperature 68.0 - 212 °F
	6.40 µm/m-°C @Temperature 20.0 - 300 °C	3.56 µin/in-°F @Temperature 68.0 - 572 °F
	6.70 µm/m-°C @Temperature 20.0 - 450 °C	3.72 µin/in-°F @Temperature 68.0 - 842 °F
Thermal Conductivity	130 - 200 W/m-K	902 - 1390 BTU-in/hr-ft²-°F

Component Elements Properties	Metric	English	Comments
Copper, Cu	8.0 - 12 %	8.0 - 12 %
Tungsten, W	88 - 92 %	88 - 92 %

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NHCST964 / 130853

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