AWS D1.1

[Beginner - Inspector]

Please kindly advise when a Welder is Qualified as per Sec ix whether he is also qualified as per AWS D1.1. Please kindly explain
[highlight #FCE94F]AWS D1.1 Para C-6.2.2.1 Previous Performance Qualification[/highlight]. Standards other than D1 .1 have welder and welding operator
qualification tests that are similar or even identical to those required by this standard. This provision allows the Engineer
to accept other qualification tests if in his/her judgment, the skills measured by these alternate tests are essentially
the same as the tests prescribed by this code. For example, AWS B2.1 , Specification for Welding Procedure and
Performance Qualification, as well as the ASME code, may be used in this manner for qualification of welding personnel.
The performance qualification tests of other D1 standards, such as D1 .2, D1 .3, D1 .4, D1 .5, and D1 .6, may be used in a
similar manner. The Engineer is assigned the responsibility of determining the acceptability of qualification to other
standards as there are differences between these standards, and such differences may be significant, depending on the
specific structure, or service conditions, or both.

 

[weldstan]

For almost (at least 98%) all of our petrochemical, chemical and power projects, our ASME IX qualified welders welded structural items as well as ASME Code piping and other pressurized equipment. This covers a span of almost 50 years and hundreds of projects. The reverse was not true. Welders qualified to AWS D1.1 were not permitted to weld on ASME Code items.