"What's the 5G position?" Jack asked Mike, just to confirm.
A welder certified in 5G is automatically qualified to weld in the less difficult 1G (rolled) and 2G positions. However, a 5G certification does not qualify you for the more advanced 6G (inclined) position.
To fully grasp 5G, it helps to compare it to the other common pipe positions:
The refers to a horizontal fixed pipe position where the pipe is stationary (cannot be rotated) and the welder must move around the entire circumference to complete the weld . In this orientation, the pipe axis lies horizontally, but because it is fixed, the welder transitions through multiple welding positions—including flat, vertical, and overhead —in a single continuous pass.
: A single 5G weld requires the operator to master and switch between: Overhead (4G) at the bottom of the pipe. Vertical (3G) on the sides (either uphill or downhill). Flat (1G) at the top of the pipe. Common Industry Applications
As he worked his way up the pipe, Jack encountered some difficulties. The heat from the weld pool was causing the metal to expand and contract, making it tricky to maintain a steady hand. But Jack persevered, adjusting his technique and taking breaks to manage the heat.
| Position Code | Pipe Orientation | Pipe Movement | Welder Movement | Difficulty | | :--- | :--- | :--- | :--- | :--- | | | Horizontal | Rotates (rolled) | Stationary (welds on top) | Easiest | | 2G | Vertical | Fixed | Moves horizontally around pipe | Moderate | | 5G | Horizontal | Fixed | Moves around pipe, changing angles | Difficult | | 6G | 45° Inclined | Fixed | Moves around pipe, all positions + gravity | Most Difficult |
Finally, after several hours of careful welding, Jack completed the 5G weld. Mike inspected the weld and gave Jack a thumbs-up. "Looks great, Jack! You've mastered the 5G position once again."
Commonly used in pipeline cross-country welding (often with cellulose electrodes like E6010).