Which AWS standard governs structural steel welding and what is a key requirement?

Which AWS standard governs structural steel welding and what is a key requirement?

• A. AWS D1.1; requires qualified WPS and PQR, welder qualifications, and inspection
• B. AWS D1.6; requires first article
• C. AWS D2.0; requires welding certification
• D. AWS D3.0; requires special PPE

Answer: (A)

The main idea here is that the standard for structural steel welding in construction is AWS D1.1. This code sets the rules to ensure welds in structural members are reliable, including the requirement that you have a Welding Procedure Specification (WPS) that is properly qualified, a Procedure Qualification Record (PQR) showing those results, and qualified welders who can produce sound welds. Inspections are also required to verify that the in-field welds meet the code’s criteria. In practice, you don’t weld structural steel without first confirming the WPS is qualified, the PQR supports that qualification, and the welder has demonstrated the necessary skill. Other standards listed cover different materials or scopes, so they don’t apply to structural steel welding in general.

The main idea here is that the standard for structural steel welding in construction is AWS D1.1. This code sets the rules to ensure welds in structural members are reliable, including the requirement that you have a Welding Procedure Specification (WPS) that is properly qualified, a Procedure Qualification Record (PQR) showing those results, and qualified welders who can produce sound welds. Inspections are also required to verify that the in-field welds meet the code’s criteria. In practice, you don’t weld structural steel without first confirming the WPS is qualified, the PQR supports that qualification, and the welder has demonstrated the necessary skill. Other standards listed cover different materials or scopes, so they don’t apply to structural steel welding in general.