Radiography Required for Longitudinal Seam on B16.9 Fittings to Achieve 100% Weld Quality Factor
Radiography Required for Longitudinal Seam on B16.9 Fittings to Achieve 100% Weld Quality Factor
(OP)
B31.3 has radiography requirements stated in Table A1-b as well as table 302.3.4 in order to increase the weld quality factor for seamed pipe. Do seamed fitting constructed to B16.9 also have to meet the radiography requirement of the longitudinal seam in order to achieve the weld quality factor of 1.0 for that seam? It appears from B16.9 that the design (calculated) or proof testing required by this standard eliminates the need to radiograph the longitudinal seam in order achieve the 1.0 joint factor (100% Weld Quality Factor), but is that in conflict with B31.3?





RE: Radiography Required for Longitudinal Seam on B16.9 Fittings to Achieve 100% Weld Quality Factor
So.....a fitting manufactured to the B16.9 specification (for dimensions) would likely be also manufactured to A234.....and therefore would have 100% x-ray on the longitudinal weld, which results in a weld quality factor of 1.0.
RE: Radiography Required for Longitudinal Seam on B16.9 Fittings to Achieve 100% Weld Quality Factor