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Hi Idan. I’m happy to show/help you but it’s a bit difficult through a forum. AutoPIPE is a bit quirky with these kind of things at first but once you get the hang of it, it’s a quite good I think. Their (online) forum and help are also quite good. Are you in Amsterdam by any chance this week...

Thanks for the feedback Ed, much appreciated!

You keep on saying and saying this r, not only in this post, but also several other posts. Yet, you never provide a decent argument. When questioned, you mention you're not a tutor. That may be true, but nog giving answers means you don't seem to be competent either. There are plenty good...

We’ve had similar applications, though we would make sure the machining is done first. Good point from TGS4, given the size certain inspections are very difficult. Do a complete PT on the inside. That’s how we found an issue in the past (though we had a cladded inside where the clad layer...

Id have to disagree, that's incorrect. The PED doesn't 'recognize' codes. There are harmonized standards however, like EN 13480, that fulfill and meet all PED requirements if such design code is applied in full. In those cases, no additional work is required during the conformity assessment to...

Your construction code (which you haven't specified, such as B31.3 or VIII-1) may set additional, more stringent requirements on top of ASME IX. Take those into consideration as well.

Ive read it. Now post which sections underline your statements, to prove you’re right (why does it feel I’m talking to a Trumpist?)

r, please provide some technical basis or background for your side of the story. So far its the old song going on all bolt torque threads where you comment on: you mention elongation should be used, but never provide a reasonable or viable argument for your side of the story. Please do that...

Nah, that wont help, line pipe is for pipeline codes. The report is for X60-X70 grades up to 250 F.

This made me think; where has Pats pub gone to? Where are the non-engineering off topic (political) discussions done now at ET? I can’t find them anymore!

That's my understanding too, but r6155 keeps on coming with the same reply over and over in each thread about bolting, torque, etc. His posts are usually too short to truly understand his reasoning. I sincerely hope that, based on the feedback in this thread, he can provide arguments for his...

Exactly my thought. @Pavan: I haven't run your calcs, but you need to neglect the time-dependent allowable stress. Determining f is an easy task, and then plugging it in the equation to find your answer should be easy as well. Look at the other, same thread, in which I provided you more...

This is one of the reasons I try to stay away from EN 13445 for creep applications. Bet lets give it a shot, Im happy to learn from others regarding creep design in Eurocodes Wouldnt that be defined in Chapter 19? Chapter 19 relates to Annex M as well. That may answers your question(s). Im...

Hey there Pavan. I would suggest you start using the current version of EN 13480-3, which is the 2024 edt. That being said, the rules allowable for determining allowable stresses are in part 3, section 5.2. Specifically 5.2.1. The input values for yield, tensile etc are in the product...

For B31.3 refer to para 304.3.3, which includes a reference to PFI ES-7. That standard is a recommendation and not a Code requirement. I think EN 13480 will have similar guidance but probably more prescriptive as it has more rules for a lot more design details than B31.3.

The Code isnt a cookbook. Review some more details on things like thermal shakedown in e.g. Peng or Maan & Jawad (both in ASME Press series). It'll help understanding these concepts better. The Code recognizes this also. Local yielding, that may occur in situations where small amounts of liftoff...

I'm having a hard time understanding this. I honestly will not try to argue with you but instead try to learn from you. Now, from all the things I've found in and learnt from PCC-1 (which isn't that much, but the HexTech training does make a good starting point): yes, elongation is a load...

@r6155: You always say this but so far have never give a decent explanation why elongation would be the appropriate method to tighten say an NPS 2” Cl. 150 flange.

Take the yield at ambient. 50% sounds like a good value. Do the PCC-1 math and go with it (using a good procedure confirming to PCC-1).

We recently did a job with piping at 2100 F, under B31.3, for a plant in the US. In fact, we used B31.3 para 300(c)(3) to go this level. The client required this material since they bear overall responsibility (para 300(b)(1). Materials were N06025, which per VD-TUV WB 540 has allowable up to...