What is the primary function of a tail in a welding symbol?

The primary function of a tail in a welding symbol is to provide a special note. In welding symbols, the tail serves as a space for additional instructions or clarifications related to the weld that may not be conveyed through the standard elements of the symbol itself. This could include specific requirements, references to standards or codes, or any particular details that are essential for the welder to know in order to complete the welding task correctly.

For example, the tail might include notations about the type of filler material to be used, the required inspection methods, or any other instructions that are not explicitly defined in the main parts of the welding symbol. This additional information is vital for ensuring that the weld meets the specified requirements and standards, ultimately contributing to the quality and integrity of the weldment.