Boretech WPS and WOPQ
Boretech WPS and WOPQ
(OP)
Hey guys, I will be qualifying a new WPS and WOPQ using a Boretech welder. So far I've done only plate WPS, and am a little unfamiliar with pipe and automated equipment.
What is the best size diameter and thickness combo to qualify a WPS and WOPQ simultaneously with a Boretech?
This will be done per ASME.
What is the best size diameter and thickness combo to qualify a WPS and WOPQ simultaneously with a Boretech?
This will be done per ASME.





RE: Boretech WPS and WOPQ
RE: Boretech WPS and WOPQ
RE: Boretech WPS and WOPQ
For overlay apps, you would be restricted to a 1/8" minimum wall thickness per QW-453. For groove weld applications, you will need two coupons at a minimum for your specified thickness ranges per QW-451. I will say that for the upper end of your thickness limits on groove applications, going from a 1" coupon to a 1.5" coupon is usually a smart move investment-wise to qualify you to 8" from the get-go.
RE: Boretech WPS and WOPQ
RE: Boretech WPS and WOPQ
Personally, I would set it up as an in-situ type scenario, especially on the thinner material. I'd also invest in a heavier coupon/mock-up to get your actual weld parameters under control.
We had major issues on multiple projects with faulty overlays in our boiler feed pumps that surfaced before they were even put into service. The manufacturer is hemorrhaging money now due to repair costs and warranty claims.
RE: Boretech WPS and WOPQ
RE: Boretech WPS and WOPQ
RE: Boretech WPS and WOPQ
RE: Boretech WPS and WOPQ
If the P8 will be overlaid on a different P#, then it would be a Corrosion-Resistant overlay.
If the P6gr4 will be overlaid on P1 I would call it a Hard-Facing.