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metengr, I agree with you 100%.Original code of construction is just that, and not the a specific edition/addenda. QAScott

pipesnpumps, What rerate code will you be using NBIC or API 510? This wiil help me address the issue of what ASME Sec VIII edition to use for this rerate. You can reduce the corrosion allowance as needed for this rerate to get the out come you are looking for. Just do not forget to address all...

raduval, When rerating/derating a pressure vessel you should contact your Jurisdiction to find the proper code to use (NBIC or API)for the the rerate/dererate. It also will help to have the original code and year of construction. I spend most of my time rerating pressure vessels and I have most...

unclesyd, What I will be doing is welding new P1 Mat'l to old P1 Mat'l (1968) that is in Hydrocarbon service. I want to know how to do the Hydrogen bake-out(time&Temp) for this full Pen. weld in .500" Nom. Thk. Mat'l. or is this Mat'l to thin to need it? Thank You, QAScott

Hello, I would like to find info about Hydrogen bake outs for SA-516 Gr70,SA 285 GrC or any P1. What is happening what you bake-out the Hydrogen? How do you know if it is all removed? Were dose it go? Thank You, QAScott

Hello, I am trying to come up with a way to attach piping supports to a pressure vessel with out welding.The vessel Temp. is ambient, and I will be using a 10"x 10"x3/8" Thk pad on the vessel shell to attach the supports to, but I would like to attach the pad to the shell with...

Thanks to everyone for the help. Scott

niteattheopera, Thank you for your help. I was able to find the API-ASME code book and that I was looking for, and I now have all the API-ASME code books. I hope I can help you some time. Thank You, Scott

Hello, I am looking for the filler metal for welding 9%Cr to 310s SS with GTAW and SMAW. The P-No. is P5B to P8. The joint will be Single Vee Groove open root. Thanks, QAScott

Unclesyd, You got it, it sounds like you have done this in the past. The only thing I would like to add is that as of the more recent ASME Sec VIII Div 1, which permits the use of higher allowable stress values. These higher values can not be used for in rerating a pressure retaining item...

Hello, I'm looking for the types (%) of joint efficiencys of welded joints for a pressure vessel built to the API/ASME code in 1945. I have the ASME Sec VIII 1945 but need to know what the joint E may have been used for API/ASME vessels. Thank You, QAScott

ZHWIL28, I have looked at my ASTM part 1 (ferrous metals) books from 1944 to 1958, and A 52 is not part of this standard. Hope that helps. QAScott

jte, I was reading your reply above. You stated "In California,the State pressure vessel folks ...will not entertain... any proposals to rerate a vessel using a different design factor than it was originally built to." Do you know why this it true? I'm from Ohio, and it is permissible...

Rburchby, The NBIC is the place to look for repairs to pressure vessels. In regards to pressure testing/hydro testing, NBIC RC-2050 requires that the integrity of the repair shall be verified by examination or test and the examination and test be used shall be subject to the acceptance of the...