CMW® ELKONITE® 30W3 Infiltrated Copper Tungsten contact material ASTM B702, Class E, infiltrated, RWMA Class 12

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CMW® ELKONITE® 30W3 Infiltrated Copper Tungsten contact material ASTM B702, Class E, infiltrated, RWMA Class 12 (discontinued **)
Categories:	Metal; Metal Matrix Composite; Nonferrous Metal; Refractory Metal; Tungsten Alloy
Material Notes:	This material has been rebranded to NAECO® ELKON® R20. >For projection welding dies, die facing, and resistance welding electrodes. Also used for low expansion structural members. Information provided by CMW Inc.
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	15.56 g/cc

Mechanical Properties	Original Value	Comments
Hardness, Rockwell B	103

Electrical Properties	Original Value	Comments
Electrical Resistivity	0.00000421 ohm-cm	(41% IACS)

Thermal Properties	Original Value	Comments
Thermal Conductivity	145 W/m-K
Melting Point	1080 - 3410 °C
Solidus	1080 °C
Liquidus	3410 °C

Component Elements Properties	Original Value	Comments
Copper, Cu	20 %
Tungsten, W	80 %

**
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NCMW39 / 15958

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