The AWS A2.4:2020 standard, published by the American Welding Society, provides a comprehensive system of welding symbols used on engineering drawings to communicate welding requirements clearly and consistently. It standardizes the graphical representation of weld types, dimensions, processes, and supplementary information, helping to eliminate ambiguity between design, fabrication, and inspection teams. The 2020 edition includes updates to symbol usage, new designations for emerging welding processes, and expanded guidance on symbols for non-welding operations like cutting or gouging. By following AWS A2.4, professionals ensure that welding specifications are interpreted uniformly across industries and projects.
