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  1. adrianviorel

    hot spots

    Thanks, metengr! You're a life saver!
  2. adrianviorel

    hot spots

    On a pressure vessel under ASME code, material A516 gr 60, hot spots for correcting some local deformation are allowed?
  3. adrianviorel

    Materials in equipment ASME VIII Div. 1 without U-STAMP

    Marco, Even if it would have to be U stamped, you would have had the option of recertification, according to UG - 10 (if I remember correctly), that stipulates a material can be replaced with another one (according to other standards than ASME), provided that has, at least, same mechanical...
  4. adrianviorel

    wire edm cutting conditions

    decreasing the voltage could be a good idea. However, you could need to move a little the position of the wire
  5. adrianviorel

    Is this Sour Service

    strider6, it could be that our collegue is speaking about some furnace/boiler coils, subject to flue gas. It de-pends on the used combustibles.
  6. adrianviorel

    Titanium welding

    Dear All, has anyone experience regarding welding of large titanium parts (argon protection, flow rates, special tools,etc)? Any help much appreciated.
  7. adrianviorel

    Estimating the cost of materials

    Take into consideration AMM,LME prices are referring to important quantities, a lot of supplementary costs being added until the material reaches the end user. Right now, Mittal prices in Europe are somewhere in the range of 600 EUR/ton, for S235 JRG2. Any alloy element will raise the price ,as...
  8. adrianviorel

    ASME- and European Standard (EN) PQR differences.

    The simplest idea would be to consider that PED does accept ASME code, provided that some supplementary conditions are fulfilled. If you want to plunge into a comparative study, it will take you a lot of time, such things being reglemented by a whole set of rules (EN 297, EN473, etc), for each...
  9. adrianviorel

    SA213 T9 tubes welded to SA387 Gr.91 plate

    Dear Lsume, we had a lot of trouble using Gr 91 material. For me, it does not seem to be a good idea to use martensitic structure on pressure vessels, simply because such structure is mainly used for wear resistance...whatever! Moreover, welding of P91 requires a lot of attention regarding...
  10. adrianviorel

    blowdown tank manufacturing

    Try www.betabuzau.ro, PED certified
  11. adrianviorel

    P91

    anyone can give me some tips about P91 fabrication (welding)?
  12. adrianviorel

    best drill material for drilling hardened high strength steel??

    Did you try a local heat treatment, for softening the material?
  13. adrianviorel

    Opinion on expansion joint

    You're quite right, rmw. However, there are still several considerations to be made. Expansion joints are to be used in the situations when, from the very beginning, process designer tells us some dilatations (axial, angular, combined) are to be compensated. In such particular cases, pressures...
  14. adrianviorel

    Ratio Ethanol Fuel/Yeast

    I do not think there are such numbers. Specifically, fermenation processes are depending on a large number of parameters. Moreover, this dependance is not linear, nor has a coherent allure. Therefore, the only literature that could help is, in my opinion, some research work. Try finding...
  15. adrianviorel

    about heart

    I think it's a matter of normality. When you start feeling an organ, no matter which, something is wrong. The human body "knows" the normal values of the internal parameters. It sounds the alarm only when the actual values are going out of the normal range. In other words: we "know" everything...
  16. adrianviorel

    Water Temperature for Hydrostatic Test

    Dear Metengr, The solution you propose is leading to a possible absurd situation. Let's suppose that material is ASTM A 516 gr. 65 , which is not quite uncommon for pressure vessels, and has a minimum design temperature of -29 C. How can a hydrotest be performed below zero? I think I miss...
  17. adrianviorel

    Engineering & Construction

    Snamprogetti Linde Uhde Lurgi JGC Parsons Stone Webster, etc
  18. adrianviorel

    T11 and T22 tube suppliers

    check processregister.com
  19. adrianviorel

    Normal, sheer, and strain in Spiral/Helical Rope under Axial Tension

    I just think stress resistance is a constant of a given material.Therefore, if you are talking about shear stress, this depends, exclusively, on the material and section's value. The fact that different kinds of ropes, made of the same material, are cracking at different stress values is a...
  20. adrianviorel

    what i can do ?

    Just one more idea:Usually, the domains you liked best are the ones you know best. Therefore, you should concentrate your efforts in these directions

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