What is a Plug Weld?

plug and slot welds   Dan plug weld vs slot weld

We start with the basics, explaining what plug and slot welds are and why they are used in steel

The effective area of the plug or slot weld is generally equal to the area of the hole or the slot being welded This is applicable for the load putting the Slot weld is also shown in the figure above It is quite similar to the plug weld, except that the hole is not circular, it is an elongated hole

slot santa In welded construction for buildings approximately 80% of the welds are fillet welds and 15% are butt welds The remaining 5% are plug, slot and spot welds  Plug welds and slot welds are used join overlapping members, one of which has holes in it Weld