T3327GL - CK Worldwide 1.5% Lanthanated Tungsten Electrode (Gold, 3/32" x 7", 10-Pack)

High-Performance 1.5% Lanthanated Tungsten Electrodes

The CK Worldwide T3327GL is a premium 1.5% Lanthanated tungsten electrode designed for critical TIG welding applications. Identified by its gold color code, this electrode meets the AWS classification EWLa-1.5 (or WL15 internationally). It is engineered with a composition of approximately 97.8% tungsten and 1.3% to 1.7% lanthanum oxide. This specific formulation offers a distinct advantage in the welding industry: it provides performance characteristics very similar to thoriated tungsten but without the radioactive hazards associated with thorium. This makes it an essential choice for safety-conscious fabrication shops and industries with strict environmental and health regulations.

One of the standout features of the 1.5% Lanthanated tungsten is its exceptional conductivity and electron emission capabilities. It is optimized for Direct Current (DC) welding, making it the go-to choice for welding carbon steel, stainless steel, nickel alloys, copper alloys, and titanium. The electrode exhibits excellent arc starting properties, allowing for immediate and stable arc establishment even at lower amperages. Furthermore, it maintains a sharp point for longer periods compared to pure tungsten, reducing the frequency of regrinding and downtime. The low erosion rate ensures that the tungsten inclusion in the weld pool is minimized, resulting in cleaner, higher-quality welds.

The lanthanum oxide is dispersed evenly throughout the tungsten matrix, which aids in maintaining the electrode's geometry. Unlike thoriated tungsten, where the oxide can migrate to the surface rapidly causing tip degradation at high temperatures, lanthanated tungsten maintains its structure better under thermal cycling. This structural integrity is vital for automated welding processes where consistency is paramount. Industries such as aerospace, food and beverage processing (stainless tanks), and medical device manufacturing often prefer non-radioactive options like the T3327GL to simplify safety compliance while maintaining high production standards.

In terms of power source compatibility, the T3327GL is versatile. It performs admirably with both inverter and transformer-based constant current power sources. While primarily used for DC applications, lanthanated tungsten can also handle AC welding with a balanced wave, although it is superior in DC electrode negative (straight polarity) setups. Its ability to handle a wide amperage range without spitting or severe tip degradation makes it a robust alternative to 2% Thoriated tungsten. While Ceriated tungsten is also non-radioactive and good for low amperages, 1.5% Lanthanated handles higher amperage loads better, bridging the gap between Ceriated and Thoriated capabilities. For welders looking to transition away from radioactive consumables without sacrificing arc stability or ease of starting, the CK Worldwide 1.5% Lanthanated electrode is the definitive solution.

This package contains ten (10) electrodes, each measuring 3/32 inches in diameter and 7 inches in length. The ground finish ensures consistency and precision, critical for automated or high-precision manual TIG welding. Whether used in aerospace, petrochemical, or general fabrication, these electrodes deliver reliable performance and longevity.