BW3327GZ - 3/32" Zirconiated Brown TIG Tungsten Electrodes (10-Pack)

High-Performance Zirconiated Tungsten for AC Applications

The Best Welds BW3327GZ is a premium-grade Zirconiated Tungsten electrode, identified by its industry-standard Brown color code (EWZr-8). Engineered specifically for Alternating Current (AC) TIG welding, this electrode contains a small percentage of Zirconium Oxide (typically 0.15% to 0.40%), which significantly enhances its performance characteristics compared to Pure Tungsten (Green). While Pure Tungsten has traditionally been the standard for AC welding, Zirconiated electrodes offer superior resistance to contamination and spitting, making them the preferred choice for high-quality radiographic welds in aerospace and critical industrial applications.

This specific electrode features a precision "Ground" finish. Unlike "Cleaned" or "Unfinished" tungsten, ground electrodes have been centerless ground to an exact diameter tolerance. This manufacturing process removes surface imperfections, ensuring optimal electrical conductivity and heat transfer from the collet to the electrode. The 3/32" (2.4mm) diameter is a versatile size, capable of handling a wide amperage range suitable for welding sheet metal up to medium-thickness plate. The 7-inch length is compatible with all standard TIG torches and consumable setups.

Zirconiated tungsten is renowned for its ability to form and retain a clean, balled tip when used with AC current. This balled geometry is essential for creating a stable, wide arc cone that provides the cleaning action necessary for welding aluminum and magnesium. Furthermore, the zirconium oxide addition increases the electrode's current-carrying capacity, allowing the welder to operate at higher amperages without the risk of the tip melting off or contaminating the weld puddle. It is important to note that while excellent for AC, Zirconiated tungsten is generally not recommended for DC welding applications.