5.5 Pipe Joints
5.5.1 Butt Welded Joints
Butt welded joints, where complete penetration at the root is achieved, may be used for all classes of piping. Degree of verification of sound root penetration is to be in accordance with 2-4-4/5 and 2-4-4/11 of the ABS Rules for Materials and Welding (Part 2).