Which code represents a fillet weld in pipe certification positions?

• A. G
• B. R
• C. 2
• D. F

Answer: (D)

In pipe certification codes, the sign that appears next to the position is used to indicate the weld type. Fillet welds are designated by the letter F, which specifically identifies the weld as a fillet rather than a groove. A groove weld would be marked with G, so that’s a different type of weld. A alone isn’t sufficient to specify the weld type, since numbers typically denote the position rather than the weld shape. R isn’t a standard code used for indicating fillet welds in this context. Therefore, the symbol that represents a fillet weld in pipe certification positions is the one that uses the letter F.