| | | Vertical plate | | | | (Weld here – overhead) | |_________________________________|
Use lower heat settings than you would for a 1F (flat) or 2F (horizontal) weld. 4F in Different Welding Processes 4f welding position full
If were mistakenly or creatively used, "4" likely refers to the overhead position , with "f" possibly indicating "fillet" or another misinterpretation. | | | Vertical plate | | |