AWS D1-Series References to WPS for Plug and

Weld and Welding Symbols plug weld vs slot weld A weld made through holes in one member of a lap joint is a plug weld When the holes are elongated, it's called a slot weld Depending on the work, plug slot Plug welds are circular welds made through one member of a lap or tee joint joining that member to the other The weld may or may not be made through a hole in

plug or slot weld Overview of plug and slot welds, their uses, symbology and application