Aws D14.1 Pdf [verified] Link

Covers surface preparation, joint fit-up, preheat, interpass temperature control, and post-weld cleaning. Includes visual acceptance criteria for cracks, undercut, and porosity.

These conditions can lead to significant local bending stresses and fatigue over short periods. Key Requirements and Scope aws d14.1 pdf

Article 2, Table 2.1 lists prequalified base metals and processes (e.g., FCAW on A36 steel). Any deviation – such as using a different filler metal, backing bar, or thickness outside limits – requires a PQR. Covers surface preparation

When you open your AWS D14.1 PDF, here are the sections you’ll reference most often: interpass temperature control