Description and Application

COPR-TRODE® is a deoxidized copper alloy developed to provide dense, high quality deposits with relatively high electrical conductivity for use in joining and overlay with the inert-gas processes.

COPR-TRODE® spooled wire and filler metal rod are used primarily to fabricate deoxidized copper and repair weld copper castings with the gas metal-arc and gas tungsten-arc processes. It may also be used to weld galvanized steel and deoxidized copper to mild steel where high strength joints are not required.

COPR-TRODE® spooled wire and filler metal rod are used to overlay surfaces to resist corrosion.



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Typical Applications

Billet moldsConductor rollsHeater elements
Copper sculpturesSteel mill electrode holdersBus bars
Copper connectors


Limiting Chemical Composition
% (filler metal)
Copper*98.0 min
Tin1.0 max
Manganese0.50 max.
Silicon0.50 max.
Phosphorus0.15 max.
Others0.50 max.
* including silver
Mechanical Properties
(Nominal all-weld metal values)
Tensile Strength ksi29 (200 MPa)
Yield Strength ksi8 (55 MPa)
Elongation % in 2″ (51 mm)29
Reduction of Area %45
BHN (3000 kg) 1/4″ (6.4mm) deposit54
Electrical Conductivity, % IACS40


AWS A5.7 Class ERCu
*Hardness will vary depending on quality of the weld and experience and knowhow of the welder.

Document Download

COPR-TRODE® Technical Data Sheet