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Hi, I was just wondering if anyone has any experience with using 3D metal printed parts in ASME B31.3 or Section VIII Division 1 work? Are there any special requirements regarding qualifying the material and allowable stress values? I'm trying to find any information but can't seem to find any.

Hi, I'm hoping someone can explain this to me as I can't figure it out! ASME VIII Div. 1 Appendix 2-2(d) states: "(d) Fabricated hubbed flanges shall be in accordance with the following: (1) Hubbed flanges may be machined from a hot rolled or forged billet or forged bar. The axis of the...

Hi, I'm just wondering if I'm interpreting this correctly. if your base metal elongation is greater than 20% and the thickness of your test coupons is 0.119, 0.294 (nominal from pipe), and 0.375" you would need to create a test jig for each thickness?

Hi, I was wondering if anyone knew if ASME Section VIII Division 1 Appendix 41 can be used for external pressure calculations? The definition of P in Appendix 41 is design pressure and does not refer to internal or external as it does in UG-34 (UG-34 is only for internal pressure, see...

Hi, I did come across this: Link Would having a head template be the best approach to verify a ASME B16.9 end cap for a code vessel to fulfill UG-90(a)(9) requirements? It's a little confusing with UG-44 and UG-11(c), which allow ASME product standards to be used in code vessels and are...

Hi, I'm just trying to get my head around traceability requirements for bolting on a code vessel. Let's say you are built a 2013 edition vessel and you have bolting that has a CMTR that complies with the SA-193 2007 edition. UG-12 provides guidelines regarding acceptable bolting. SA-193 is...

Hi, I'm a little confused with the required ASME markings and data report for a combination unit (jacketed vessel or heat exchanger). If I had a jacketed vessel I would have 2 chambers (jacket, and inner vessel), the jacket design conditions are internal pressure 150psig@300F, external...

I currently have a Joist header (2 ply 2x8 SPF) that spans 10ft that supports 9 joists (2x8) with 5 being 70in long and 4 being 84in long. No joist hangers on the joist to header connection just 3 nails from the back of the header into the joist. The previous owners of the house had done...

Hi, I'm looking to modify a beam in my basement. Currently joists are connected to a beam that is 2x 2x8, below that there are 3x 2x8 that support this upper section. I would like to remove the 3x 2x8 piece and modify the 2x 2x8 with the addition of a 2x8 and C7x9.8, This assembly would be...

Hi, I was going through this sample calculation to verify a spreadsheet I had created but I have noticed several errors. Most obvious are step 11 lm calculation, and S5g calculation. Does anyone know if there are corrections to this? If not does anyone know if you let ASME know and maybe get...

I intend to create a reverse flange that can accept studs on both sides. The ID of the flange will be the ID of the pipe and the OD will be the OD of the flange. Basically a hollow cylindrical piece with tapped holes on either end. According to Interpretation VIII-1-86-171 and UG-14, I can...

Hi I have an excel program to do Appendix 2 flange calculations. I have read that Div. 2 2010 includes external loading into its calculations and I would like to integrate that into my spreadsheet. Most equations are the same but I have noticed that V = flange stress factor / factor / hub...

Hi, I using comosworks 2008 and have in the past been able to use the pressure vessel study which allows stress linearization. But for some reason that study option is not coming up, only static analysis is. Usually I create one or two static analyses and then use the pressure study to sum...

Hi, I am running a thermal / stress model and have noticed that the displacement from thermal movement in the stress analysis isn't from my fixed point. The program seems to assume it is at the base of the model instead of where I have the fixed support. I am wondering if this is something...

Hi, I believe this problem was raised here: http://www.eng-tips.com/viewthread.cfm?qid=244721&page=9#post I can't seem to post to it since it is closed. The question I have is if you decide to use the short answer method "The short answer is to use the same number as the width across flats...

Is it possible on a U-1A form to group nozzles of similar size together? The purpose of these nozzles may be different but material, size and attachment method are all the same. thanks, animal

Hi, Does anyone know why compact flanges are designed to have flange to flange face contact at the heel and toe? Could you eliminate the flange to flange face contact and locate the gasket at the ID of the flange similar to a grayloc type gasket and have no flange face contact? Does anyone...