c) Welding symbol, in turn, provides comprehensive information with respect to the geometry of
preparation, fit-up and welding of joints. It is composed of a number of standard elements,
including a weld symbol, and uses any of the applicable supplementary symbols to effectively
complement such information.
All the basic elements of a typical welding symbol, including reference to supplementary
symbols and their respective designated locations, are shown in Figure 3.27.
3.9 Basic Weld Symbols
Reference was already made to the primary purpose of a weld symbol. Its main and specific objective
is to graphically identify each type of weld.
To assist in this identification, the shape of the symbol, whenever possible, is made to conveniently
reflect the relative configuration of the fusion faces as represented by a vertical section through the
joint.