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Ensinger PEI

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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 PropertiesOriginal ValueComments
Density 15.56 g/cc
 
Mechanical PropertiesOriginal ValueComments
Hardness, Rockwell B 103
 
Electrical PropertiesOriginal ValueComments
Electrical Resistivity 0.00000421 ohm-cm(41% IACS)
 
Thermal PropertiesOriginal ValueComments
Thermal Conductivity 145 W/m-K
Melting Point 1080 - 3410 °C
Solidus 1080 °C
Liquidus 3410 °C
 
Component Elements PropertiesOriginal ValueComments
Copper, Cu 20 %
Tungsten, W 80 %

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