AWS D1.1 Structural Welding Code

The AWS D1.1 Structural Welding Code – Steel is the American Welding Society’s flagship standard that sets the requirements for welding steel structures. It covers design, procedures, qualifications, inspection, and acceptance criteria for welds in buildings, bridges, and other critical structures. Widely used in construction and fabrication, D1.1 ensures safety, consistency, and structural integrity by specifying welding practices for various steel types and thicknesses. This code is essential for engineers, inspectors, and welders working on load-bearing steel structures in the U.S. and internationally.