Which color is associated with Zirconium tungsten?

• A. Brown
• B. Green
• C. Red
• D. Yellow

Answer: (A)

Tungsten electrode color coding is a quick visual guide to the electrode’s dopant and its best use in welding. The color tells you what oxide or oxide-plus-dopant is in the tip, which influences arc stability and the kinds of metal and current it’s suited for. Zirconium (zirconiated) tungsten is part of this system, and most charts show zirconiated electrodes with a distinct color so you can choose the right one for AC or DC and for different metals.

In common reference charts, zirconiated tungsten is usually represented by a gray color, while other colors map to other types (green for pure tungsten, brown for thoriated, blue for lanthanated, orange for ceria‑tungsten, etc.). If a particular course or test uses brown to denote zirconiated tungsten, that reflects a nonstandard chart specific to that material. The core idea to carry forward is: use the color as a quick identifier of electrode type, and always rely on the color key from the exact training material you’re using.