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ECu (Copper Electrode)

Alloy Type:

ECu  is a pure copper electrode used for joining and build-up on copper parts requiring corrosion resistance and thermal and/or electrical conductivity.  A preheat of 750degrees-1100degrees F should be used for thicker sections.  Use as large an electrode as possible and maintain a short arc.


Typical Applications:  joining and build-up of copper parts


AWS Class: ECu Certification:      AWS A5.6/A5.6M:2008
Alloy:  ECu ASME SFA A5.6


Welding Position:  F, H, V-up, OH Current:



Tensile Strength, kpsi: 25 min
Yield Strength, kpsi: *NS
Elongation %: 20


*Not Specified


Typical Wire Chemistry as per AWS A5.6 (single values are maximum)

Mn Al Si Fe Pb Cu including Ag Other
0.10 0.10 0.10 0.20 0.01 Remainder 0.50




Typical Welding Parameters
Diameter Process Amps
in (mm)
 1/8  (3.2)  SMAW 115
 5/32  (4.0)  SMAW 155
 3/16  (4.8)  SMAW 185

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