NP552 - 2% Thoriated Tungsten Electrode .040" x 7" (Red Tip)

Reliable TIG Welding Performance

For professional fabricators and TIG welding enthusiasts, the 2% Thoriated Tungsten Electrode (.040" x 7") remains the gold standard for Direct Current (DC) welding applications. Identified by its distinct red tip, this electrode is formulated with a minimum of 97.30% tungsten and 1.70% to 2.20% thorium oxide. This specific composition is designed to enhance the electrode's electron emission, making it a favorite among welders who require consistent and reliable arc starts.

At Josef Gas, we understand that precision is paramount. The .040-inch diameter of this tungsten is specifically suited for welding thin gauge materials where heat control is critical. Whether you are working on delicate stainless steel tubing or fine mild steel brackets, this electrode provides the stability needed to maintain a focused arc without blowing through the base metal. Its ability to maintain a sharpened point for extended periods reduces downtime spent on regrinding, allowing you to focus on laying down high-quality beads.

Thoriated tungsten is renowned for its longevity. The presence of thorium oxide raises the recrystallization temperature of the tungsten and enhances its current-carrying capacity. This means the electrode can withstand higher amperages than pure tungsten without melting or spitting, ensuring a clean weld puddle free from tungsten inclusions. It is the go-to choice for welding carbon steel, stainless steel, nickel alloys, and titanium.

Key Benefits for the Shop

Choosing the right consumable is essential for shop efficiency. The 2% Thoriated Red Tungsten offers a balance of performance and durability that is hard to beat for DC applications. It resists contamination better than many alternatives, and its stable arc characteristics help reduce operator fatigue during long welding sessions. While modern alternatives exist, the "Red Tungsten" remains a staple in toolboxes across the industry for its proven track record on critical structural and cosmetic welds.