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Ensinger PEI

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Chromium-Copper, UNS C17600, As-cast Billet
Categories: Metal; Nonferrous Metal; Copper Alloy

Material Notes: Applications: resistance welding electrodes for spot, seam, flash, and projection welding methods; electrical connectors, clips

As cast billet

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Physical PropertiesOriginal ValueComments
Density 8.75 g/cc
 
Mechanical PropertiesOriginal ValueComments
Hardness, Rockwell B 60 - 65
Tensile Strength, Ultimate 310 - 415 MPa
Tensile Strength, Yield 105 - 240 MPa
@Strain 0.2 %
Elongation at Break 15 - 25 %In 50 mm
Modulus of Elasticity 125 - 130 GPa
Shear Modulus 44.0 GPa
 
Electrical PropertiesOriginal ValueComments
Electrical Resistivity 0.0000047 - 0.0000054 ohm-cm
@Temperature 20.0 °C
 
Thermal PropertiesOriginal ValueComments
CTE, linear 16.7 µm/m-°C
@Temperature 20.0 - 200 °C
Specific Heat Capacity 0.420 J/g-°C
Thermal Conductivity 215 - 245 W/m-K
Melting Point 1031 - 1068 °C
Solidus 1031 °C
Liquidus 1068 °C
 
Processing PropertiesOriginal ValueComments
Processing Temperature 975 °CHot-Shortness Temperature
Annealing Temperature 900 - 950 °C10 minutes/water quench
Aging Temperature 425 °C3-6 hours, for maximum strength
 480 °CCommercial practice, 2-3 hours
Hot-Working Temperature 750 - 925 °C
 
Component Elements PropertiesOriginal ValueComments
Beryllium, Be 0.25 - 0.50 %
Co + Ni >= 1.4 %
Co + Ni + Fe <= 1.9 %
Cobalt, Co 1.4 - 1.7 %
Copper, Cu 97 %
Silver, Ag 0.90 - 1.1 %

References for this datasheet.

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