ASME IX Welder Qualification Thicknesses?
ASME IX Welder Qualification Thicknesses?
(OP)
I intend to test welders on 1" plate and use the radiographic substitution in place of bend tests (QW 142)
My question is what table do I use to calculate the thickness qualified?
QW 4521-1 gives me "Maximum to be welded" and QW 452-2 gives me "2t"
I'm sure this has been questioned before, have I missed something?
My question is what table do I use to calculate the thickness qualified?
QW 4521-1 gives me "Maximum to be welded" and QW 452-2 gives me "2t"
I'm sure this has been questioned before, have I missed something?





RE: ASME IX Welder Qualification Thicknesses?
The qualified thickness is 2t, but, if you use test coupons 1/2" thick, or thicker, and, deposit a minimum of three layers, qualified thickness is only limited by the WPS.
RE: ASME IX Welder Qualification Thicknesses?
Read QW-404.30 and this will give you the answer to your question of where to look.
RE: ASME IX Welder Qualification Thicknesses?
Joe Tank
RE: ASME IX Welder Qualification Thicknesses?
RE: ASME IX Welder Qualification Thicknesses?
There is no Base metal thickness range for performance.
Gerald Austin
Iuka, Mississippi
http://www.weldinginspectionsvcs.com
RE: ASME IX Welder Qualification Thicknesses?
RE: ASME IX Welder Qualification Thicknesses?
Thickness of test material?
No I didn't realise this, can you point me in the direction of the Code to qualify this?
I'm finding the Da-Vinci code easier to decipher than ASME IX !
RE: ASME IX Welder Qualification Thicknesses?
QW-452 only refers to thickness of weld metal qualfified.
If you have a 2" thick joint and 4 welders qualfied for 1/2" of deposit thickness AND a WPS qualified for that thickness, then you can weld up the joint with multiple welders.
Gerald Austin
Iuka, Mississippi
http://www.weldinginspectionsvcs.com