A spot welding process employing two electrodes and a shunt bar so that two welds may be made at one time. This setup is used in “push-pull” welding, and is sometimes referred to as series spot welding.

2F, Pipe

A welding test position designation for a circumferential fillet weld applied to a joint in pipe, with its axis approximately vertical, in which the weld is made in the horizontal welding position.

2F,Plate

A welding test position designation for a linear fillet weld applied to a joint in which the weld is made in the horizontal welding position.

2FR

A welding test position designation for a circumferential fillet weld applied to a joint in pipe, with its axis approximately horizontal, in which the weld is made in the horizontal welding position by rotating the pipe about its axis.

2G, Pipe

A welding test position designation for a circumferential groove weld applied to a joint in a pipe, with its axis approximately vertical, in which the weld is made in the horizontal welding position.

2G, Plate

A welding test position designation for a linear groove weld applied to a joint in which the weld is made in the horizontal welding position.