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Elmet Technologies

NAECO® ELKON® R20 Infiltrated Copper Tungsten contact material ASTM B702, Class E, infiltrated, RWMA Class 12
Categories: Metal; Metal Matrix Composite; Nonferrous Metal; Refractory Metal; Tungsten Alloy

Material Notes: For projection welding dies, die facing, and resistance welding electrodes. Also used for low expansion structural members.

Formerly CMW® ELKONITE® 30W3

Information provided by NAECO, LLC.

Vendors: No vendors are listed for this material. Please click here if you are a supplier and would like information on how to add your listing to this material.
 
Physical PropertiesMetricEnglishComments
Density 15.56 g/cc0.5621 lb/in³
 
Mechanical PropertiesMetricEnglishComments
Hardness, Rockwell B 103103
 
Electrical PropertiesMetricEnglishComments
Electrical Resistivity 0.00000421 ohm-cm0.00000421 ohm-cm(41% IACS)
 
Thermal PropertiesMetricEnglishComments
Thermal Conductivity 145 W/m-K1010 BTU-in/hr-ft²-°F
Melting Point 1080 - 3410 °C1980 - 6170 °F
Solidus 1080 °C1980 °F
Liquidus 3410 °C6170 °F
 
Component Elements PropertiesMetricEnglishComments
Copper, Cu 20 %20 %
Tungsten, W 80 %80 %

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

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