Hi all,
I have a customer looking for confirmation that they can substitute phased array UT testing for RT in high pressure/temp P91 and P22 steam piping. I believe the boiler manufacturer only wants to accept RT and our customer wants to use UT. I looked in power piping and it looks like you...
I was wondering if anyone has a recommendation (pros/cons/discussion) for filler materials for SAW SA387 GR22 (P5A Gr1) to SA516 GR70 Normalized (P1 Gr2). I am working to ASME Sec IX and ASME Sec VIII D1 and D2 vessels.
I need to expand a weld procedure to incorporate the dissimilar weld metals...
Does anyone know what material ASME SA235 Gr P2 is? It is called out as a seamless pipe on an old 1964 U1-form. If I had to guess it would be 1/2Cr 1/2Mo, but I have not had success finding it (is it similar to SA335 P2?).
I was wondering which interpretation of length over-tolerance is correct for a 5/8" dia 35' tube. It doesn't really matter in that we would prefer less trim length and I would like to know which interpretation is correct.
Per Table 4 ASTM A1016
Welded Tube <2" Cut Length over tolerance [+1/8"...
Our company was looking for a primer to fit the bill for our heat exchanger "shop coat" primer for operating at moderate temperatures. The product that fit best was a Silicone Alkyd Heat Resistant Coating. It has worked well, but the primer we selected comes only in White (up to 450F) and Black...
What recourse is there to the pressure vessel fabricator if material supplied by a vendor is determined to be fraudulent? Where do I start looking for information?
We are talking about pressure boundary parts in ASME Sec VIII D1 Heat Exchangers (TEMA/HEI standards), with materials purchased to...
Our customer requested "Chrome Moly" plates. This is a non-code part, but machinability is important to us and the part is CrMoly for resistance to erosion (steam/water service). Allowable stress for design is not a factor and the part is not welded.
Does anyone have a SA387 Grade...
We have a new set-up to our SAW machine for strip with a refurbished nozzle. We have not used strip before and we are having trouble getting the arc to start using constant voltage (CV) setting (the strip feeds through the nozzle very quickly but does not start an arc). We are using 0.5mm x 60mm...
I'm revisiting what should be a simple question. We typically use 1/4" thk backing bars on circ. seams (heat exchanger closing seams) since the material is SA-36 and comliant with UG-(5)(a) and UCS-12. The question has come up if we can use thinner material that is easier to work with (3/16" or...
Does anyone have recommendations for filler material welding SB171 UNS61400 to SA516 Gr70? Would this alloy be a better (easier to CODE weld) than SB171 UNS63000? The next question is welding the UNS61400 (or UNS63000) to UNS70600 (90/10 CuNi), any filler recommendations?
Does anyone have any...
I was wondering if anyone has a general calculation for the expected deflection (caused by weld shrinkage) of a circular disk that has a weld overlay applied to it?
I have a new T22 tube weld to an old ER308L weld overlay (20yr). I need to develop this procedure, and was wondering if there was any good advice out there for filler selection, preheat, and PWHT?
Weld process will be GTAW. My first thought is to use ER309L filler wire. My second thought would...
How should UW-12(d) be interpreted for an ASME CODE heat exchanger that has a seamless tube side (cup forging) with a bolted cover and welded nozzles (welded shell side)? (The cup forging is an integral tubesheet/shell/flange on the tube side, with a shell welded to the shell side of the...
