Re: SOFTWARE FOR PIPE THICKNESS CALC

From: <tomcruz55>
Date: Sat Sep 17 2005 - 01:23:00 EDT

  1. Under 5 minutes. The wall thickness is 1.37 in. based on corr all. of .05. I even have the class rating and the applicable WPS plus the branch table using our PIping Spec. If branch is included, i can tell wether a pad is needed or not. Add few more minutes, full purchase spec plus NDE/test req'd is also no big deal.
  2. Using a programmable calc, the min. wall thick can be figure under 5 min. included in the process is getting the values of the allow stress in Table A-1 of B31.3 (17.5 ksi) and the OD (10.75) from Tables P-1 Piping Guide. The CA, mill tolerance and others are already part of the eq.
  3. Using MS Excel, much quicker.
  4. Typing the response, takes longer.
    • In PipingDesign@yahoogroups.com, Narendra Roy <narendra_roy@y...> wrote:
      > Try to calculate the thickness schedule of the Pipe
      > ASTM A 335 P22 for design pressure of 30 bar at 400C
      > design temp, Pipe size being DN 250 (10 inch NB) to be
      > designed as per ASME B31.3.
      > Check if you had been able to answer in 5 minutes.
      > This is the question I pose to piping engineers in my
      > trg program, and then they start asking for code,
      > allowable stress values, pipe schedule chart etc.
      > Getting all this references is a job, which is done by
      > the demo software in few minutes, only you have the
      > loaded software AutoPIPE demo on your computer to
      > immediately start and get the answer.
      > I have to put the lengths in X-Y space for a model to
      > make the software effective to get you quich hoop
      > stress check. Unless one tries he may not appreciate
      > the comments I made.
      > NK Roy
      >
      > --- elie altawil <eliealtawil@y...> wrote:
      >
      > > Ckeck GPSA Data Book (11th edition) for guidance:
      > > See Fig. 17.23 and 17.24 for formulas, Fig 17.25 for
      > > allowable stresses, Fig. 17.26 and 17.27 for
      > > examples.
      > >
      > > tomcruz55 <tomcruz55@y...> wrote: I still dont
      > > get why you need a software to figure out the req'd
      > > thickness?
      > >
      > > You dont need the nodes, the piping outlines to calc
      > > the thickness
      > > of the pipe (min. req'd and nominal) and you dont
      > > even need to write
      > > a macro. Its a straight forward application of 304
      > > in B31.3 -2002.
      > > You can get the number in less than 5 minutes.
      > >
      > >
      > >
      > > --- In PipingDesign@yahoogroups.com, Narendra Roy
      > > <narendra_roy@y...> wrote:
      > > > Do you really need to purchase a software for
      > > > Thickness evaluation? I have the demo CD of
      > > AutoPIPE
      > > > which is fuctional upto 20 nodes and you can
      > > quickly
      > > > model in a minute the pipe run in X-Y plane and
      > > put
      > > > your design pressure and temp, materials and get
      > > the
      > > > qualified schedule of the pipe for the size. It is
      > > > that simple. Just work on and then you will forget
      > > the
      > > > $ outflow. And even for the time you put, will
      > > > behardly 5 minute in all. If you do otherwise you
      > > need
      > > > to have the code volume. calculator, computer, and
      > > > your engenuity to do fast evaluation without a
      > > > software help. And try it and you waste your min
      > > 30
      > > > minutes straight. you save your precious 20 odd
      > > > minutes and you are more confident of your result.
      > >
      > > > NK Roy
      > > >
      > > >
      > > > --- tomcruz55 <tomcruz55@y...> wrote:
      > > >
      > > > > actually im using the software purchase from
      > > Coade
      > > > > the likes of CII,
      > > > > CodeCalc and Tanks. For a quickie, i just used
      > > > > either the Casio
      > > > > programmable or the excel.
      > > > >
      > > > > But for dimensions or just figuring out the max.
      > > > > vel, i just grab
      > > > > the slide rule from M.W. Kellog.
      > > > >
      > > > > For those lacking the resources, MS Excel is an
      > > > > excellent tool.
      > > > >
      > > > >
      > > > >
      > > > > --- In PipingDesign@yahoogroups.com, virgilio
      > > > > balbuena
      > > > > <virgiliobalbuena@y...> wrote:
      > > > > > Friend,
      > > > > >
      > > > > > I am so amazed with this question , by
      > > the
      > > > > way to make it
      > > > > short you may use mathcad software to create
      > > your
      > > > > formula in
      > > > > calculation of wall thickness base on ASME 31.3
      > > > > ,31.4....etc...I
      > > > > have done this already and it is so easy....
      > > > > >
      > > > > > regards,
      > > > > >
      > > > > > friend.....
      > > > > >
      > > > > > tomcruz55 <tomcruz55@y...> wrote:
      > > > > > A lot of engineers/designers in INdia,
      > > Indonesia,
      > > > > Phil and other
      > > > > > places doesnt get paid $95/hour. And as ive
      > > said,
      > > > > if money is no
      > > > > > object sure go ahead and purchase the
      > > software.
      > > > > >
      > > > > > And if you work in an organization that pays
      > > > > $95/hour then
      > > > > resources
      > > > > > will be available. Meaning, the question
      > > shouldnt
      > > > > have been raised
      > > > > > in the first place.
      > > > > >
      > > > > >
      > > > > >
      > > > > > --- In PipingDesign@yahoogroups.com, elie
      > > altawil
      > > > > <eliealtawil@y...>
      > > > > > wrote:
      > > > > > > My billing time is $95/hour. I sure can't
      > > build
      > > > > the spreadsheets
      > > > > > available in <a href="http://www.pipingoffice.us/">http://www.pipingoffice.us/</a>
      > > software
      > > > > with 3 hour time.
      > > > > > >
      > > > > > > Cheers,
      > > > > > >
      > > > > > > tomcruz55 <tomcruz55@y...> wrote:
      > > > > > > Need money to spend. If you have lots of it,
      > > > > then theres nothing
      > > > > > > wrong with buying the software.
      > > > > > >
      > > > > > > By the way, most of whats included in the
      > > > > pipingoffice is
      > > > > > available
      > > > > > > in charts and tables or could be handle by a
      > > > > simple excel macro
      > > > > or
      > > > > > > calculator.
      > > > > > >
      > > > > > >
      > > > > > > --- In PipingDesign@yahoogroups.com, elie
      > > > > altawil
      > > > > > <eliealtawil@y...>
      > > > > > > wrote:
      > > > > > > > What is wrong with:
      > > > > > > > <a href="http://www.pipingoffice.us/">http://www.pipingoffice.us/</a>
      > > > > > > >
      > > > > > > >
      > > > > > > > Cheers,
      > > > > > > >
      > > > > > > > --- Narendra Roy <narendra_roy@y...>
      > > wrote:
      > > > > > > >
      > > > > > > > > Please use AutoPIPE for such evaluation.
      > > > > > > > > NK Roy
      > > > > > > > >
      > > > > > > > > --- tomcruz55 <tomcruz55@y...> wrote:
      > > > > > > > >
      > > > > > > > > > Just the wall thickness. If yes, then
      > > > > Whats wrong
      > > > > > > > > > with MS Excel? If
      > > > > > > > > > you like you can even call out the
      > > nominal
      > > > > pipe
      > > > > > > > > wall
      > > > > > > > > > thickness using
      > > > > > > > > > the allowances specified by you.
      > > > > > > > > >
      > > > > > > > > > --- In PipingDesign@yahoogroups.com,
      > > > > > > > > > <Krishna.Vyakaranam@a...> wrote:
      > > > > > > > > > >
      > > > > > > > > > > HI,
      > > > > > > > > > > can anybody pl suggest megood
      > > software
      > > > > for PIPE
      > > > > > > > > > THICKNESS CALC
      > > > > > > > > > which covers ASME B31.3 thru all asme
      > > > > Codes.
      > > > > > > > > > >
      > > > > > > > > > > Best Regards,
      > > > > > > > > > > V.V.N.KRISHNA
      > > > > > > > > > > Kvaerner Powergas ( I ) Pvt. Ltd.
      > > > > > > > > > >
      > > > > > > > > > >
      > > > > > > > > > >
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Received on Sat Sep 17 01:23:00 2005

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