How is additional information indicated in the tail of a welding symbol?

In welding symbols, the tail is specifically designed to provide additional information that pertains to the weld. This additional information is indicated using a notation, which can include specific instructions or references to related documents. The notation could specify details such as the type of weld material, welding process, or even refer to performance standards that need to be followed.

The tail segment of the welding symbol serves as a crucial area for conveying necessary instructions that support the main graphic representation of the weld, ensuring clear communication between design specifications and the welder's execution. This notation helps clarify expectations and requirements, thus aiding in achieving consistency and quality in welding practices.

The other components, such as the reference line, weld symbol, and arrow, serve distinct purposes in the symbol structure but do not convey the supplementary information found in the tail. The reference line primarily serves as the baseline to which the welding symbols are attached, while the weld symbol denotes the type of weld to be performed, and the arrow indicates the joint to be welded. Each element has its defined role, but it is the notations in the tail that provide the additional context or clarifications needed for precise execution.