| Process | Typical Electrode/Filler | Polarity | Notes | | :--- | :--- | :--- | :--- | | | E7018 (Low-hydrogen) or E6013 | DCEP (DC+) | E6010/6011 can be used but produce more spatter. | | GMAW (MIG) | ER70S-6 (0.035" or 0.045") | DCEP (DC+) | Use a slight push angle. | | FCAW (Flux-Core) | E71T-1 (Gas-shielded) or E71T-11 (Self-shielded) | DCEP (DC+) | Great for thick plates; high deposition. | | GTAW (TIG) | ER70S-2 or ER70S-6 | DCEN (DC-) | Less common for fillets; used for thin or critical alloys. |
In 1F welding, the joint is tilted so the weld pool is supported entirely by the "V" of the metal. In 2F, gravity pulls the puddle toward the bottom plate, requiring the welder to actively "push" or "hold" the metal onto the vertical plate. 2f welding position
In the 2F position, the welder deposits a bead into the corner of two pieces of metal that are oriented roughly 90 degrees to each other (like an "L" shape). The critical distinction is that , and the welding proceeds in the horizontal direction , but the face of the weld lies in a vertical plane. | Process | Typical Electrode/Filler | Polarity |
