Welding Rod Gouging 3,2mm

The 3.2mm Carbon Gouging Rod is a specialized consumable engineered for the South African structural, mining, and heavy engineering sectors. Designed for use with the Air Carbon Arc Gouging (CAG) process, these rods utilize a high-density carbon-graphite core to melt metal with an electric arc, while a compressed air stream simultaneously blows the molten material away. The 3.2mm (1/8") diameter is the primary choice for precision "back-gouging" and removing small weld defects or tack welds without excessive heat-distortion of the base metal.

Key Performance Features

• High-Density Carbon-Graphite Core: Formulated for superior arc stability and a high melting point, allowing for clean, consistent grooves in mild steel, stainless steel, and cast iron.
• Precision Copper Coating: Features a uniform, high-conductivity copper wash that improves electrical pick-up at the torch jaws and protects the rod from "spalling" under high-amperage heat.
• Controlled Metal Removal: The 3.2mm gauge provides a narrow, controlled groove, making it ideal for cleaning out the "root" of a weld before performing a back-run on structural joints.
• Extreme Heat Resistance: Engineered to operate at high current densities, maintaining its structural integrity while slicing through heavy-duty steel plate.

Ideal Applications

• Structural Weld-Defect Removal: The industry standard for "gouging out" cracked or porous welds in I-beams and trusses before re-welding to X-ray standards.
• Back-Gouging Root Passes: Used to clean the backside of a V-butt joint on heavy plate (10mm+) to ensure 100% penetration and fusion.
• Agricultural Equipment Repair: Perfect for removing worn-out "wear strips" and old weld beads on plough frames and heavy-duty trailers.
• Foundry & Casting Cleanup: Ideal for removing "fins," "risers," and surface defects from small-to-medium cast iron or steel castings.

Product Benefits

• Fast & Efficient Operation: Significantly faster than mechanical grinding or oxy-fuel cutting for removing large amounts of metal or "washing" away old welds.
• Low Heat Input: The high-velocity air stream keeps the surrounding metal relatively cool, reducing the risk of warping on thinner structural sections.
• Universal D.C. Compatibility: Designed to run on Direct Current Electrode Positive (DCEP), making it compatible with most industrial-grade 300A+ CC welding power sources.

Pro Tip: To achieve a clean, smooth groove, hold the rod at a 35° to 45° angle to the workpiece and keep the air jet behind the rod, blowing toward the front of the groove. For 3.2mm rods, ensure your welding machine is set between 150A and 200A and that you have a consistent compressed air supply of at least 5.5 Bar (80 PSI) for maximum molten metal ejection.