How many stringers are required for the cover pass of a 2G weld?

How many stringers are required for the cover pass of a 2G weld?

• A. 2
• B. 3
• C. 4
• D. 5

Answer: (B)

The cover pass is the final cap of a groove weld, and in the 2G (horizontal) position you typically need multiple short runs to shape a proper, smooth bead. Using three stringers for the cover pass provides enough material and control to build a solid cap with a uniform contour, good crown, and proper finish without excessive buildup. If you use only two stringers, the cap may be undersized or uneven; if you try four or five, you risk too much heat input, excessive reinforcement, or distortion. Three stringers strike the right balance for a sound, well-finished 2G cover pass.