: This is a crucial time- and cost-saving section. It allows fabricators to use a WPS without physical testing by following a pre-set "recipe" of specific base metals, filler metals, joint designs, and parameters. Prequalification is restricted to SMAW, SAW, GMAW (except short-circuit), and FCAW processes on common structural steels.

The code establishes specific acceptance criteria for visual inspections and advanced NDE tracking methods. Visual Inspection (VT)

→ Download the (AWS B2.1/B2.1M) from aws.org.