How did anybody review FCAW welder as per ASME IX 2017 ?
Most certificates found that do not meet QW-304, which they had performed RT test in lieu of mechanical test (bending test).
QW-304 states …welder may be qualified by volumne NDE per QW-191 when making a groove weld using SMAW, SAW, GTAW, PAW, GMAW (except short circuiting…
Not mentioned in FCAW welding process!
How to correct it?
Retest to update the certificate.
Qualification on test coupon or weld production?
On test coupon, 2 bending test specimens shall subject to test.
Thickness and diameter of test coupon?
See Table 452.2 a) and b); Table 452.3
Test coupon recommend NPS 8" 12.7 mm and greater 12.7 mm.