3.13 Information in Tail of Welding Symbol
The tail of the welding symbol allows convenient placement of any type of information that will
effectively complement the information conveyed by the other components of the symbol.
The conventions as used by individual companies and geared to their specific operations will have a
great bearing on the type of information that each of them will consider sufficient in scope for their
needs.
Such information may:
1) refer to a specific welding process, or
2) consist of a welding procedure specification number, or
3) show “typical” when the required weld is representative of all welds shown in the drawing