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03DOC60 - Harris ERCu Deoxidized Copper TIG Welding Rod 1/8" (3.2mm)

Packaging: 10 lb per tube
$31.78/lb $304.70/10 lb per tube only $30.47/lbSave 4%

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OVERVIEW

Achieve Flawless Copper Welds with Harris ERCu

For welders tackling copper projects, whether it's high-end architectural work, sculpture, or industrial electrical repairs, the Harris ERCu Deoxidized Copper TIG Rod is your go-to filler metal. Welding copper can be tricky due to its tendency to suck heat away from the weld zone rapidly, but this 1/8" (3.2mm) rod is designed to flow smoothly and wet out perfectly, giving you the control you need to lay down beautiful, consistent beads. The deoxidized formula is a game-changer, actively fighting porosity so you don't end up with swiss-cheese welds that leak or fail under stress.

One of the biggest advantages of this Harris rod is the color match. If you are building a copper still, a custom countertop, or artistic metalwork, you want the weld to blend seamlessly with the base metal. This rod deposits pure, bright copper that patinas evenly with the rest of your workpiece. It's also fantastic for electrical work; because it's nearly pure copper, it doesn't create a resistance bottleneck in your circuit, keeping bus bars and grounding straps functioning at peak efficiency.

Packaged in a sturdy 10 lb tube, these 36-inch rods stay straight and clean until you're ready to burn them. When using this 1/8" diameter, be prepared to run some amperage—copper loves heat. For thicker materials, don't be afraid to switch to a Helium mix to get that puddle fluid. Whether you are a seasoned pipe welder or a fabricator expanding into non-ferrous metals, the Harris ERCu rod provides the reliability and performance Harris is famous for.

Why Welders Choose Harris ERCu

  • Perfect Color Match: Blends invisibly with copper base metals.
  • Porosity Fighter: Built-in deoxidizers keep your puddles clean.
  • Smooth Feeding: Consistent diameter and finish for easy hand feeding.
  • Versatile: Great for both artistic and industrial electrical applications.
Additional Information
Brand:Harris
Diameter:3.2mm (1/8")
Weld Process:TIG (GTAW)
Packaging:10 lb Tube
Grade:Copper
AWS Classification:ERCu
Material Composition:Deoxidized Copper
Rod Type:TIG Cut Length
Shielding Gas Requirement:100% Argon, Helium, Argon/Helium Mix
Length:36 in
Applications:Copper Fabrication, Electrical Bus Bars, Copper Pipe Joining
Packaging Description:10 lb per tube
Position:N/A
Polarity:N/A

INCLUDED

  • 10 lb Tube of Harris ERCu Deoxidized Copper TIG Rods (3.2mm / 1/8")
  • Product Information Sheet

APPLICATIONS

  • Fabrication of deoxidized copper vessels and piping.
  • Welding electrical bus bars and conductors.
  • Repairing copper castings.
  • Artistic copper metalwork and sculpture.
  • Surfacing steel parts for corrosion resistance.
  • Joining copper to mild steel (overlay).

FAQ

This rod typically conforms to AWS A5.7 classification ERCu.

Yes, ERCu can be used to join copper to steel or for overlaying steel surfaces, though technique is critical to minimize dilution.

100% Argon is suitable for thin sections. For thicknesses over 1/8 inch, Helium or a 75% Helium / 25% Argon mix is recommended to provide the necessary heat input.

Yes, due to copper's high thermal conductivity, preheating (often 400°F - 1000°F depending on thickness) is usually required for sections thicker than 1/8 inch to ensure fusion.

Absolutely. The high copper content ensures excellent electrical conductivity, making it ideal for bus bars and grounding equipment.

These are 3.2mm (1/8 inch) diameter rods.

It contains small amounts of deoxidizers like phosphorus or silicon to prevent the formation of copper oxide and porosity during the welding process.

This package is a 10 lb tube.