A qualification is a range, not a badge. Each bar below is the thickness scope the procedure actually covers, drawn on one axis from zero to 2.000 in, and the mark is the coupon thickness that was tested to earn it. Work outside a bar is work we would have to qualify first, and we will say so.
SMAW, GMAW, FCAW
Groove and fillet welds, plate and pipe, all positions. Procedures written in house and requalified on any essential-variable change.
0.125 - 1.500 in · tested at 1.000 in
Third party, bend and macroetch
01.0002.000 in
GTAW, GMAW
Groove welds 1G through 4G. Filler and purge gas recorded per joint on the traveler.
0.060 - 0.750 in · tested at 0.500 in
Third party, bend and ferrite check
01.0002.000 in
GMAW
Fillet welds 2F and 3F in 5052 and 6061. Preheat and interpass limits fixed by the procedure.
0.100 - 0.500 in · tested at 0.250 in
Third party, fillet break
01.0002.000 in
FCAW with backing
Single-bevel and double-bevel groove welds in A572-50. Preheat by thickness, logged per joint.
0.500 - 2.000 in · tested at 1.500 in
Third party, ultrasonic
01.0002.000 in
Five methods. Three are done here and two are not, and the two that are not are the two where an in-house result would be worth less.
| Method | Performed by | Applied to | Record |
|---|---|---|---|
| Visual | In house, two qualified inspectors | Every welded assembly, before finishing | Signed on the traveler |
| Ultrasonic | Independent testing laboratory | All full-penetration welds in lifting and load-path parts | Report filed with the job |
| Magnetic particle | In house | Fillet welds on lifting components, and on request | Signed on the traveler |
| Dimensional | In house | First part off, then one in ten, then the last part off | Measured values, not a pass mark |
| Coating thickness | In house | Every primed load | Gauge readings filed with the job |
What we can still tell you about a part two years after it left, and how.
Procedure documents and inspection reports are sent with the job, or ahead of it on request. Submit a drawing.