Simply put, a is a certified professional who can weld a pipe joint while the pipe is fixed in a 45-degree angle (inclined position), with the axis of the pipe neither horizontal nor vertical. The "G" stands for "groove weld."

In the world of certified welding, especially in pipe welding for industries like oil & gas, power generation, and shipbuilding, the term "6G welder" signifies a high level of skill and versatility. But what exactly does the "6G" mean?