Weldline WLA 20 Lanthanated Tungsten Electrode 1.6x175mm Blue

The Weldline WLA 20 lanthanated tungsten electrode, measuring 1.6x175mm, is a high-quality consumable engineered for precision TIG welding applications. Identified by its blue color code, this electrode is formulated to provide superior arc ignition and consistent arc stability throughout the welding process. Its composition ensures a long service life and resistance to electrode degradation, making it a reliable choice for demanding professional welding environments.

Advantages

This lanthanated tungsten electrode offers exceptional performance due to its ability to handle both alternating current and direct current welding processes. The inclusion of lanthanum oxide enhances the current-carrying capacity of the electrode while maintaining a lower operating temperature, which significantly reduces the risk of tungsten inclusions in the weld pool. Users benefit from reliable arc starting and a stable arc profile, which contributes to higher quality weld beads and increased productivity across various metal thicknesses.

Suitable for

• TIG welding of stainless steel
• TIG welding of carbon steel and low-alloy steel
• Welding of aluminum and magnesium alloys using AC
• Precision welding tasks requiring high arc stability
• Automated and manual welding applications

When it may not be suitable

This electrode may not be the optimal choice for specialized applications that require specific doping elements like pure tungsten for high-frequency AC welding on certain aluminum alloys where different arc characteristics are preferred. It is also not intended for non-TIG welding processes such as MIG or stick welding.

Key specifications

• Diameter: 1.6 mm
• Length: 175 mm
• Material: Lanthanated tungsten (WLA 20)
• Color code: Blue
• Current type: AC and DC

How to use

To prepare the electrode, grind the tip to the desired angle using a dedicated tungsten grinder to ensure a clean, longitudinal finish. Insert the electrode into the TIG torch collet, ensuring that the stick-out length is adjusted according to the specific joint configuration and gas nozzle size. Maintain a consistent distance between the electrode tip and the workpiece during the arc initiation and welding process to preserve the integrity of the tungsten point.

What to consider before purchase

• Ensure the 1.6mm diameter is compatible with your current collet and torch body size.
• Verify that your welding machine settings are compatible with lanthanated tungsten electrodes.
• Check the required quantity, as these electrodes are typically supplied in packs.

Usage recommendations

For optimal results and to extend the life of the electrode, always use the correct grinding direction and keep the tungsten tip clean from contamination. Ensure that the shielding gas flow is properly adjusted to prevent premature oxidation of the electrode.