| Criteria | Requirement | |----------|--------------| | Reinforcement | 0" – 1/8" (0–3.2 mm) | | Undercut | Max depth 1/32" (0.8 mm), not exceeding 1" length in 12" | | Porosity | None visible (for radiographic/visual inspection) | | Cracks | Not allowed | | Incomplete fusion | Not allowed | | Penetration (root) | Full fusion without excessive drop-through |
Overall, the 2G welding position requires a good understanding of welding techniques, joint preparation, and safety procedures. With practice and experience, welders can master this position and produce high-quality welds. welding 2g position
| Process | Electrode/Wire | Technique | |---------|----------------|------------| | SMAW (Stick) | E6010 (root), E7018 (fill/cap) | Slight drag angle (5–10° upward); stringer or slight weave | | GMAW (MIG) | ER70S-6 (0.035"–0.045") | Push angle (10–15°); slight oscillation to control sag | | FCAW (Flux-core) | E71T-1 | Drag angle (10–15°); watch for slag trapping | | GTAW (TIG) | ER70S-2 (filler rod) | Maintain tight arc length; add filler at leading edge of puddle | It is a critical certification test for structural
The 2G welding position is a horizontal groove weld where the workpiece is vertical, and the weld axis runs horizontally. It is a critical certification test for structural steel and pipelines because it requires precise control to prevent gravity from causing the molten puddle to sag or roll off. EZG Manufacturing +2 Core Techniques & Challenges Gravity Management and the weld axis runs horizontally.