It is distinct from the position, which refers to a horizontal Fillet weld (commonly a "T-joint"). The 2G specifically refers to a butt joint or groove weld.
The primary obstacle in 2G welding is . Unlike flat (1G) welding, where the puddle sits comfortably in the joint, the molten metal in 2G tends to sag toward the bottom edge. 2g welding position
Working too hot or holding the arc too long at the top edge can "dig" into the metal without filling it back in, creating a structural weakness known as an undercut. A Guide to the 2G Weld Test - Triangle Engineering It is distinct from the position, which refers