Aws D1 4 D1 4m

This code covers the requirements for welding steel reinforcing bars in most reinforced concrete applications. It contains a body of rules for regulations of welding steel reinforcing bars and provides suitable acceptance criteria for such welds.

This code covers the requirements for welding reinforcing steel in most reinforced concrete applications. It contains a body of rules for the regulation of welding reinforcing steel and provides suitable acceptance criteria for such welds.

"This code covers the requirements associated with welding sheet steel having a minimum specified yield point no greater than 80 ksi [550 MPa]. The code requirements cover any welded joint made from the commonly used structural quality low-carbon hot rolled and cold rolled sheet and strip steel with or without zinc coating (galvanized). Clause 1 includes general provisions, Clause 4 design , Clause 5 prequalification, Clause 6 qualification, Clause 7 fabrication, and Clause 8 inspection."--Title page.

This specification provides the general welding requirements for welding aircraft and space hardware. It includes but is not limited to the fusion welding of aluminum-based, nickel-based, iron-based, cobalt-based, magnesium-based, and titanium-based alloys using electric arc and high energy beam processes. There are requirements for welding design, personnel and procedure qualification, inspection, and acceptance criteria for aerospace, support, and non-flight hardware. Additional requirements cover repair welding of existing hardware. A commentary for the specification is included.