AWS D1.1
Structural Welding Code - Steel
Summary
Covers welding requirements for any type of welded structure made from commonly used carbon and low-alloy constructional steels.
Scope
Design, qualification, fabrication, and inspection of steel structures welded by SMAW, SAW, GMAW, FCAW, ESW, and EGW processes. Applies to structures subject to static and/or dynamic loading.
Key Requirements
Welder Qualification
Welders must qualify per Clause 4.
- Visual inspection of test welds
- Bend tests or RT/UT
- Requalification required if process changes
WPS Qualification
Welding Procedure Specifications must be qualified per Clause 4 through PQR testing.
- Mechanical testing of test coupons
- Essential variable limits defined
- Pre-qualified WPSs available for common configurations
Inspection Requirements
Clause 6 covers quality and inspection.
- VT required for all welds
- NDT (UT/RT) per engineer specification
- Rejection criteria defined by loading type
Applicable Materials
Carbon SteelLow Alloy SteelASTM A36ASTM A572ASTM A992
Applicable Processes
SMAWSAWGMAWFCAWESWEGW