For Groove Welds
PLATE positions
1G Flat Position. Plate in a horizontal plane with the weld metal deposited from above.
2G Horizontal Position. Plate in a vertical plane with the axis of the weld horizontal.
3G Vertical Position. Plate in a vertical plane with the axis of the weld vertical.
4G Overhead Position. Plate in a horizontal plane with the weld metal deposited from underneath.
PIPE positions
1G Flat Position. Pipe with its axis horizontal and rolled during welding so that the weld metal is deposited from above.
2G Horizontal Position. Pipe with its axis vertical and the axis of the weld in a horizontal plane. Pipe shall not be rotated during welding.
5G Multiple Position. Pipe with its axis horizontal and with the welding groove in a vertical plane. Welding shall be done without rotating the pipe.
6G Multiple Position. Pipe with its axis inclined at 45 deg to horizontal. Welding shall be done with out rotating the pipe.
For Fillet Welds
1F Flat Position. Plates so placed that the weld is deposited with its axis horizontal and its throat vertical.
2F Horizontal Position. Plates so placed that the weld is deposited with its axis horizontal on the upper side of the horizontal surface and against the vertical surface.
3F Vertical Position. Plates so placed that the weld is deposited with its axis vertical.
4F Overhead Position. Plates so placed that the weld is deposited with its axis horizontal on the underside of the horizontal surface and against the vertical surface.
