Dear experts
Good morning,
Is there any minimum weld length for RT in the WQT on AWS D1.1 qualification?
I checked there criteria specified in AWS D1.1 6.23.3.1 exclude 32 mm at each end of the plate.
BELOW Source AWS D1.1
-- Good morning,
Is there any minimum weld length for RT in the WQT on AWS D1.1 qualification?
I checked there criteria specified in AWS D1.1 6.23.3.1 exclude 32 mm at each end of the plate.
BELOW Source AWS D1.1
6.23.3 RT. If RT is used in lieu of the prescribed bend tests, the weld reinforcement need not to be ground or otherwise
smoothed for inspection unless its surface irregularities or juncture with the base metal would cause objectionable weld
discontinuities to be obscured in the radiograph. If the backing is removed for RT, the root shall be ground flush (see
7.23.3.1) with the base metal.
6.23.3.1
RT Test Procedure and Technique. The RT procedure and technique shall be in conformance with the
requirements of Clause 8, Part E and Clause 10, Part F for tubulars. For welder qualification, exclude 1-1/4 in [32 mm]
at each end of the weld from evaluation in the plate test; for welding operator qualification exclude 3 in [75 mm] at each
end of the test plate length.
But what is the minimum length need to be radiographed?
smoothed for inspection unless its surface irregularities or juncture with the base metal would cause objectionable weld
discontinuities to be obscured in the radiograph. If the backing is removed for RT, the root shall be ground flush (see
7.23.3.1) with the base metal.
6.23.3.1
RT Test Procedure and Technique. The RT procedure and technique shall be in conformance with the
requirements of Clause 8, Part E and Clause 10, Part F for tubulars. For welder qualification, exclude 1-1/4 in [32 mm]
at each end of the weld from evaluation in the plate test; for welding operator qualification exclude 3 in [75 mm] at each
end of the test plate length.
But what is the minimum length need to be radiographed?
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