4.5.6 Submerged Arc Welding of Carbon and Low Alloy Steels
Joint Design
Because of the high currents and deep penetration possible with submerged arc welding, steels up to
12 mm may be welded in one pass without any edge preparation. With edge preparation, steels with
thickness up to 25 mm are weldable in one pass. However, it assumes that the joint is suitably
designed to prevent burn-through and that the weld zone mechanical properties achieved are
acceptable. Figure 4.40 shows a typical prequalified joint configuration for submerged arc welding.
Clause 10.2 of CSA W59 lists all the prequalified joint configurations.