AWS D1.3/D1.3M:2018

AWS D1.3/D1.3M:2018 contains the requirements for arc welding of structural sheet/strip steels, including cold formed members, hereafter collectively referred to as "sheet steel," which are equal to or less than 3/16 in [5 mm] in nominal thickness. In addition, welding hollow structural section (HSS) also called tubular members with wall thickness less than 1/8 in [3 mm] are included in the scope of this code. Design requirements for HSS member connections are not in the scope of this code. When this code is stipulated in contract documents, conformance with all its provisions shall be required, except for those provisions that the Engineer or contract documents specifically modifies or exempts.