Which code is used for the fixed horizontal position?

• A. 1
• B. 5
• C. 2
• D. G

Answer: (B)

In GTAW position coding, numbers label how the weld is oriented. The fixed horizontal position is represented by the numeral five. This means the joint sits in a horizontal plane and the weld is performed in a fixed orientation around the joint, a common setup in pipe welding. The other options either refer to different orientations or, when a letter is used, denote the weld type rather than the position, so they don’t indicate the fixed horizontal arrangement. For example, you might encounter a notation like 5G for groove welds in a fixed horizontal pipe position, which reinforces that the numeric code is the key indicator for this orientation.