In TIG welding, which type of electrode should you use for steel and stainless steel?

When performing TIG (Tungsten Inert Gas) welding on steel and stainless steel, the use of a 2% thoriated tungsten electrode is particularly advantageous. This type of electrode is widely recognized for its excellent performance in producing a stable arc and maintaining a consistent arc shape. The thorium content improves the electron emission properties of the tungsten, allowing for better arc stability and higher current capabilities. These characteristics are essential for achieving clean and precise welds, especially in critical applications such as those involving steel and stainless steel materials.

Additionally, the 2% thoriated tungsten is versatile enough to handle various position welding and can be used across different weld types, making it a preferred choice among welders when working with steel and stainless steel. The electrode's ability to withstand higher temperatures without degrading is also crucial for maintaining the integrity of the weld in these materials.

In contrast, while pure tungsten is sometimes used, it doesn't provide the same level of arc stability for steel and stainless steel welding applications. Other options like 3% lanthanated tungsten are excellent for certain applications but may not be as commonly applied specifically for steel and stainless steel as 2% thoriated tungsten. Likewise, graphite is not suitable for TIG welding processes as it cannot