Does NACE MR0103 require PWHT of P1 material?
Does NACE MR0103 require PWHT of P1 material?
(OP)
We have received an order for an ASME Section VIII Div 1 vessel. The shell is SA 106 B, the heads are SA 516 70N and the flanges are SA 105N. Under the material section of the data sheet states it states heads and shell are to be per NACE MR0103. There is no mention of PWHT. The shell is 24" S/30 (.562"), the heads are 7/16" Min and the flanges are 300#. It is exempt from PWHT per ASME. Does NACE MR0103 require the vessel to be PWHT'ed?





RE: Does NACE MR0103 require PWHT of P1 material?
https://www.nace.org/cstm/Store/Product.aspx?id=6e...
RE: Does NACE MR0103 require PWHT of P1 material?
RE: Does NACE MR0103 require PWHT of P1 material?
RE: Does NACE MR0103 require PWHT of P1 material?
There is no anger from me. You must realize that on a forum folks like myself only see the exact question and in the context of how it is presented. Again, if you would have prefaced your question with some background information, I would have responded differently. Namely, call the home office and have them send the NACE document to you. You really need to have the specification in-hand to review for yourself rather than relying on an internet forum response.
RE: Does NACE MR0103 require PWHT of P1 material?
I fully intend to get the final determination from our QC manager. The only reason I posed the question was because I needed to keep the job moving to stay on schedule. I assumed there would be someone familiar with the standard that could give me a simple yes or no. I didn't expect anyone to spend time researching. That's why I tried to give all the pertinent information regarding the vessel.
gr2vessels
Regarding my lack of contribution. Although I don't get to spend a lot of time on the forum, when I am on I do look for issues I think I can be of assistance in order to repay the help I have received. Unfortunately, I have not run across an issue that I could answer that was not already answered and I will admit I feel bad about that. Perhaps I misunderstood the purpose of this forum and will refrain from asking anymore questions until I can answer, I guess, at least one. Is the correct protocol (1) asked for (1) answered? I am not purposely a "miserable poster".
RE: Does NACE MR0103 require PWHT of P1 material?
Steve Jones
Corrosion Management Consultant
http://www.linkedin.com/pub/8/83b/b04
All answers are personal opinions only and are in no way connected with any employer.