Deciphering Weld Symbols

Deciphering Weld Symbols plug and slot weld symbol 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 and slot weld symbol A plug weld joins the surface of a piece of material to another piece through a hole The hole can be partially or completely filled with the weld material

plug and slot weld symbol GROOVE ANGLE OR INCLUDED ANGLE OF COUNTERSINK FOR PLUG WELDS LENGTH OF WELD IN mm PITCH OF WELDS IN mm FIELD WELD SYMBOL WELD-ALL-

plug or slot weld PLUG OR SLOT WELD BACKING BAR SPACER BAR BACK OR BACKING WELD SPOT WELD  There are a variety of other weld symbols, such as the spot-welding symbol, which is also used as an informal tack welding symbol, the plug weld symbol (which