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  • Users: stesw90
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  1. stesw90

    Nozzle loadings

    Dear all, Below highlighted is statement in the specification of a clinet, same i have seen in fourth edition of pressure vessel manual, out which first condition we are satisfying in our calculation, but i didn't exactly understood the requirement of second case mentioned in bold letters, Does...
  2. stesw90

    sa-350 LF2

    Dear All, I am working on ASME section VIII div.2, as per permissible material list in Annex-3A of ASME section VIII div.2 and table-5A section II part-d, SA-350LF2 can be used for pressure vessel manufactured as per ASME section VIII div.2, But problem is it is not mentioning which class can be...
  3. stesw90

    Fillet weld size for structural weld

    Dear All, How can I calculate required fillet leg size for structural welds i.e saddle, in section VIII divI i could find below mentioned clause, Can someone elaborate below mentioned clause in the form of equation and define each variable, UW-18 (d) Unless the sizing basis is given elsewhere...
  4. stesw90

    Korboggen Head

    Dear All, Does anyone know what is korboggen head, and where can i find specification for this in ASME section VIII or any other section,
  5. stesw90

    limitation of slipon flange

    Dear All, I have a 20" shell at the channel side of the heat exchanger for which i am using 600# slip on flange, design pressure at channel side=1250psig / shell side=300psig design temperature=185°f MDMT=-45°f finished thickness for the shell is 0.944" , hub thickness at small end of the flange...
  6. stesw90

    UCS-66.1

    Dear all, I have vessel to design at -70 degree Fahrenheit and 50 psi pressure, I designed it with sa-516 gr.70 normalized at curve D i.e -55degree Fahrenheit, Required thickness with corrosion allowance 6mm (CA-3mm)I took 8mm to achieve reduced MDMT By limiting MAWP to design pressure, I got...
  7. stesw90

    UCS-66.1

    Dear all, I have vessel to design at -70 degree Fahrenheit and 50 psi pressure, I designed it with sa-516 gr.70 normalized at curve D i.e -55degree Fahrenheit, Required thickness with corrosion allowance 6mm (CA-3mm)I took 8mm to achieve reduced MDMT By limiting MAWP to design pressure, I got...
  8. stesw90

    SA-572/ S355j2 +N

    Dear all, I got a client request to use s355j2+N as doubler pad for pipe, My concern is about equivalent material for S355j2 +N which belongs to European standards, I have made a search from my end and i came across sa-572 having equivalent mechanical properties, but i can't find specifications...
  9. stesw90

    Allowable stress values in ASME sec.II D & ASME B31.3

    Dear all, My concern is about allowable stress values mentioned in table-1A of ASME secII D and one that is mentioned table A-1 of ASME B31.3, I was checking allowable stress value for SA-106 gr.b in sec-II D and in ASME B31.3 and i found different values in both place, In ASME sec2 pard D it...
  10. stesw90

    Impact Test For SA-179

    Dear all , I would like to know were i can find specification for impact test of SA-179 used as tubes for heat exchangers, I couldn't find any statement regarding impact test in Section2 A SA-179 as well as in SA-450 were as in PV elite it shows that it can be used with impact test up to -55°F ...
  11. stesw90

    stress relieving, thickness difference, minimum thickness

    1}as per our requirement head had to be cold formed and had to be stress relieved but vendor provided hot formed head and said stress relieving not required . P no.1 & Group.1 hot forming temperature 600 to 900. All I want to know is which part of code proves about this. Kindly help me to know...

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