2% Lanthanated Blue Tungsten Electrode

Blue Lanthanated Tungsten (WL20)

Blue Lanthanated Tungsten (WL20) is a high-performance, non-radioactive TIG welding electrode containing 2% lanthanum oxide. Renowned for its versatility, it is widely regarded as an excellent all-purpose electrode, delivering reliable performance across a broad range of welding applications. Suitable for both AC and DC welding, WL20 provides outstanding arc starting, exceptional arc stability, and low electrode wear when welding materials such as steel, aluminum, titanium, and other specialty alloys.

Key Features & Benefits

Exceptional Versatility
Designed for use with both alternating current (AC) and direct current (DC), WL20 is ideal for welders who frequently switch between different materials and welding processes without changing electrode types.

Superior Arc Performance
Offers quick, consistent arc ignition and excellent arc stability, while maintaining a sharp point for longer periods, even under demanding pulsed welding conditions.

Safer Alternative
As a non-radioactive electrode, WL20 provides a safer substitute for traditional thoriated (red) tungsten, without sacrificing welding performance or reliability.

Wide Material Compatibility
Suitable for TIG welding a variety of metals, including:

• Carbon and stainless steels
• Aluminum and aluminum alloys
• Titanium
• Magnesium alloys
• Nickel alloys
• Copper and copper alloys

Best Practices

• DC Welding: Grind the electrode to a sharp point for optimal arc control and penetration.
• AC Welding: The electrode can be lightly balled when required, depending on the application and machine settings.

Available Sizes

Blue Lanthanated Tungsten (WL20) is commonly available in the following diameters:

• 1.0 mm
• 1.6 mm
• 2.4 mm
• 3.2 mm

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