AWS D1.1/D1.1M:2025

Choose a path

Paths do not share logic with Section IX. A production WPS is never created first — except a preliminary WPS used only to weld the qualification coupon.

Qualify a procedure (PQR)

Weld a coupon, record mechanical tests, compute Table 6.1 / 6.2 ranges, then generate production WPSs from this PQR.

Prequalified WPS

Clause 5 only. Process, base metal, filler, joint, and preheat must stay inside Tables 5.1, 5.6, and 5.11. No PQR.

Preliminary WPS (coupon only)

For welding the qualification test plate or pipe. Not valid for production. After the PQR is signed, generate the production WPS from the PQR.