I took an online course last year, from an AWS approved site, and it gave a reentrant angle of 135 degrees. I was wondering where they came up with that until I read the (D1.1) commentary C-2.21.6.6, and figure C-2.9. It talks about grinding the individual weld passes down but still leaving 'canyons' in between.
My question is, wouldn't the groove weld profiles (D) given in 5.4 apply? The fillet weld profile (E) that has a small 'canyon', with less than the 135 degree reentrant angle, is unacceptable.
4.9.1.1 (3) weld profiles shall conform to Figure 5.4. My opinion is that since there are no canyons shown in the profiles for the groove welds that they would not be acceptable.
Respectfully,
Rick