Electrode Diameter Selection Calculator

Select optimal electrode diameter based on base metal thickness and welding current range for SMAW, GMAW, and FCAW processes

Input Parameters

Results

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Recommended Electrode Dia
in
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Current Range for Dia
A
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Max Single-Pass Thickness
in
Note: For SMAW, electrode diameter should not exceed base metal thickness for thin materials. Vertical and overhead positions limit electrode diameter to 5/32 in. max per AWS D1.1.

Reference

SMAW: electrode dia ~ base metal thickness for thin plate Max dia for vertical/overhead: 5/32" (4mm) GMAW: 0.023-0.045" wire diameters typical FCAW: 0.035-1/16" wire diameters typical Current range per AWS A5.1/A5.18/A5.20