Excellent news about 403.10, thanks for making me look into that David. Yesterday I went over the book changes and transferred my notes to the new copy.
DekDee, QW403.10 is still printed in article 4, but is no longer called out in QW-250 tables.
Good afternoon folks. I'm working to expand some existing WPS ranges and want to make sure I don't have to run a million PQRs because we are using GMAW-S for the root passes.
I have an existing PQR on 3/8” plate with GMAW-S root and FCAW fill, with impacts, which qualifies a WPS for...
I have a manifold section that requires quench and temper heat treatment of the long seam. A particular customer order needs this manifold to attach to a pipe system that is sized such that it will require PWHT of the closure welds when they attach to the pipeline (1.75"). My WPS is qualified...
We have a WPHY-70 fitting that gets a longitudinal seam weld. We typically use ASME B31 requirements to determine if we need to PWHT (1150F) or not. I have weld procedures qualified with and without PWHT that both meet the 70 yield.
I am now hearing that a customer will not accept as-welded on...
14.4.4 of MSS SP-75 2014 wants sub arc welds with one pass from inside unless it's inaccessible "then, a manual or machine root bead may be employed..."
Does that language exclude semi-automatic processes (eg GMAW and FCAW) for the single sided root bead?
Secondary to that question, I don't...
I have a plate that is purchased as tested and HIC resistant, but manufacturing process requires normalizing after forming, would this still be acceptable, or is HIC test required after the heat treatment? MR0175 does not spell this out (from what I can tell anyway) and we do not have further...
If I understand QW-403.10 and Interpretation IX-95-33 correctly, bridging the gap from 3/8" plate to 1/2" plate is going to require three full PQRs.
Say we have GMAW-S root and FCAW fill on P1G1 to P1G2 with impacts required and I want to cover 3/8" through 3/4" T. If this was done with just...
Thanks. This particular case is P1 carbon steel about .28" T. I haven't seen published number for shear from weld mfg but have reached out to our rep for help.
I have a customer RFQ asking for 60-80% shear in CVN tests at -20F. Most of what we have available is in the range of 20-50% shear in the weld and HAZ, with some WPS having up to 100% in the HAZ only. Typically looking at GTAW with ER70S-6. Heat input is 25.5 kJ/in root and 46kJ/in fill/cap...
Grain size evaluation is going on this week; hoping for answers soon from that.
CVNs were 10x7.5 (for my test and on the MTR), but that still doesn't get them up to a reasonable result after conversion.
MTR states normalized, and the second unwelded coupon we tested from that plate got good...
We attempted to qualify 3/8" thick 304L to A516g65 welded with E309LT-1. Everything worked fine, but my CVN tests in the 516 base metal were 10, 7, 7 ft-lbs at -20°F. The MTR for that plate shows 140s at -50F, and we had another sample from the same plate tested (unwelded) and got 130s. The 304...
