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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.
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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 %
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
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NAECO® ELKON® 2050C Copper Tungsten Contact Material ASTM B702, Class A, infiltrated
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NCMV839 / 192435
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