Welding Symbol Chart

From the straightforward groove welds that unite metals edge to edge, to the intricate plug and slot welds that braid materials together, each

Finish symbol Contour symbol Root opening; depth of filling for plug and slot welds Effective groove weld size Depth or preparation; size or strength for

plug slot strength for certain welds Groove weld size Root opening; depth of filling for plug and slot welds Finish symbol Contour symbol Reference line Elements in

plug weld and slot weld Proper technique is to initiate the arc in the center and deposit weld metal in spiral layers