The only complete and official presentation of the standard welding symbols is in AWS A2.4, Standard Symbols for Welding, Brazing, and Nondestructive Examinations.

MISSISSIPPI WELDERS SUPPLY CO., INC.

This standard establishes a method for specifying certain welding, brazing, and nondestructive examination information by means of symbols. Detailed information and examples are …

When welds are specified on engineering and fabrication drawings, a cryptic set of symbols issued as a sort of shorthand for describing the type of weld, its size, and other processing and …

− As the weld cools, impurities rise to the surface, forming a coating called slag that must be removed before the member is painted or another pass is made with the electrode.

Each type of weld has specific standard symbols to represent the weld bead and specific placement on the weld callout. CAD systems have a weld symbol command that corresponds …

The objective of this specification is to ensure welds of proper quality, and to ensure the safety, quality and serviceability of the product without increasing cost or fabrication time.