Power Source
Stud Base Diameters (Inches)
400 amp NEMA Rated Arc Welder
600 amp NEMA Rated Arc Welder
Two-400 amp Welders in Parallel
Two-600 amp Welders in Parallel
One-2000 amp power unit
Two-2000 amp power units in parallel
Recommended Minimum Plate Thickness
Steel & Aluminum Arc Stud-Welding
| Base Diameter of Stud | Steel Without Backup
(in) / (ga) | Aluminum w/o backup | Aluminum with backup |
| 0.187 | 0.0359 in / 20 ga | 0.125 in | 0.125 in |
| 0.250 | 0.0478 in / 18 ga | 0.125 in | 0.125 in |
| 0.312 | 0.0598 in / 16 ga | 0.187 in | 0.187 in |
| 0.375 | 0.0747 in / 14 ga | 0.187 in | 0.187 in |
| 0.437 | 0.0897 in / 13 ga | 0.250 in | 0.250 in |
| 0.500 | 0.1196 in / 11 ga | 0.250 in | 0.250 in |
| 0.625 | 0.1480 in / 9 ga | | |
| 0.750 | 0.1870 in | | |
| 0.875 | 0.2500 in | | |
| 1.000 | | | |
