T3167GT2 - 3/16" Red Tungsten Electrodes - 2% Thoriated for DC TIG Welding

Heavy-Duty Industrial TIG Electrodes

The T3167GT2 2% Thoriated Tungsten Electrodes represent the industry standard for Direct Current (DC) TIG welding applications. Identified by their red color code, these electrodes contain a minimum of 97.30% tungsten and 1.70% to 2.20% thorium oxide (ThO2). This specific metallurgical composition, classified as EWTh-2 by the American Welding Society (AWS), is engineered to lower the work function of the electrode. This reduction allows for thermionic emission at lower temperatures compared to pure tungsten, resulting in easier arc ignition and a more stable arc during operation.

With a substantial diameter of 3/16 inch (4.8mm), these electrodes are specifically designed for high-amperage applications where heat management and current carrying capacity are critical. They are capable of handling the intense thermal loads required for welding thick sections of carbon steel, stainless steel, nickel alloys, and titanium. The addition of thorium oxide significantly improves the electrode's resistance to contamination and reduces the rate of erosion, ensuring a longer service life and fewer interruptions for regrinding.

These electrodes are manufactured to strict tolerances to ensure consistent performance in automated and manual GTAW (Gas Tungsten Arc Welding) processes. The 7-inch length fits standard TIG torch setups. While thoriated tungsten is renowned for its performance, users should be aware of safety protocols regarding the grinding of these electrodes, as thorium is a low-level radioactive material. Proper ventilation and dust extraction are recommended during preparation. For industrial MRO operations requiring reliable, high-performance consumables for structural fabrication, pipe welding, and heavy manufacturing, these 3/16" thoriated electrodes are the optimal choice.