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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 750º-
1100ºF should be used for thicker sections.
Use as large an electrode as possible and
maintain a short arc.

Applications
• Joining and build-up of copper parts

AWS Specification
AWS A5.6/A5.6M:2008
AWS Classification ECu

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

Typical Wire Chemistry
Mn 0.10
AI 0.10
Si 0.10
Fe 0.20
Pb 0.01
Cu (including Ag) REM
OTHER 0.50

Typical Mechanical Properties
(As Welded)
Yield Strength, ksi 27
Tensile Strength, ksi 33
Elongation%, min 3

Available Diameters
1/8", 5/32" & 3/16"

Operating Range in Amps
1/8" 100 - 130
5/32" 140 - 170
3/16" 170 - 200