The commonly used international standards and codes for welder qualification examinations in the steel structure industry are ISO 9606-1 and AWS D1.1/D1.1M. This paper conducts a comparative analysis from the aspects of application scope (welding processes

material types

welding personnel)

examination content (welding positions

base materials

welding materials

weld detail)

specimen inspection methods (visual inspection

radiographic inspection

bending test

fracture test

macroscopic examination)

and the validity period of welder qualification certificates. ISO 9606-1 has more stringent requirements on welders

welding processes

types of welding materials

and assessment methods. The examination content is more comprehensive

the recognition principles are more detailed

and the requirements for the skill level of welders are higher. AWS D1.1/D1.1M has a wider application scope

covering welders

welding operators

and tack welders

and includes more welding processes. The certificate validity period is also relatively flexible

allowing steel structure manufacturing companies to choose welder examinations or training based on their own situations.