AWS D1.1/D1.1M: 2025 [paper]

AWS D1.1/D1.1M Structural Welding Code – Steel

Every five years, the most authoritative code in structural steel welding gets an overhaul—and the 2025 edition of AWS D1.1/D1.1M:2025 is one of the most significant updates yet.

If you rely on D1.1 to guide your welding practices, inspections, or fabrication specs, now is the time to upgrade.

What’s New in This Edition?
From filler metal classification changes to revised WPS qualifications and enhanced inspection criteria, the 2025 edition delivers vital revisions you can’t afford to miss:

• Filler Metal Updates: AWS A5.36 references removed throughout; new matching filler metal requirements added.
• Welded Connection Design: New subclause on LRFD, a new Table 4.3 on joint strength, and clarifications to fillet weld sizing.
• WPS Prequalification: Table 5.1 split into 4 streamlined tables; new drawings replace old joint details.
• Qualification & Fabrication: Updates to preheat/interpass temps, macroetch criteria, and production welding requirements.
• Inspection: Expanded MT and PT provisions, clarified NDT certification language, and revised visual inspection acceptance criteria.
• New Coverage: Type D studs, revised tubular structure connections, and an all-new Annex S on base materials.

Available in Print and Secured PDF

Both formats include the full code, all annexes, and an updated Commentary for practical interpretation.

Whether you’re in design, fabrication, inspection, or engineering, staying compliant means staying current.