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  • Users: B.Beykaee
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  1. B.Beykaee

    Brick Retainer Rings Sequence In Refractory Lines

    Hi in refractory lines, there is some metal arcs called " brick retainer rings". if there is an metal expansion joint in the line, in order to prohibiting of expansion joint locking, two sets of brick retainer rings will be placed beside the expansion joint and the volume under expansion joint...
  2. B.Beykaee

    problem in understanding EJMA standard

    Hello every one. I have a problem in EJMA standard. We know that p(si) and p(sc) are two pressures that above them we have in-stability. so the limiting design pressure according to the section 4.12.1.6 will be the minimum of these two value. but the problem is in this phrase that says : "These...
  3. B.Beykaee

    material of pipe

    hello every body we want to construct a 80" pipe with plate with one weld seam. the owner wants from us to use a plate which should be equivalent to ASTM A671 CB60 CL.10. please tell me a plate specification
  4. B.Beykaee

    asme materials

    hello every body I have a problem with my owner. there is a 50 MM thick disk, which is a pressure boundary component (pressure part), which is subjected to 52 bar test pressure, the temp. is 250 c, and the fluid is NH3+H2S+H20+CO2, the material of the disk was selected AISI 304, for some reason...
  5. B.Beykaee

    under-tolerance for plates

    hi in sec 8 says that if the under-tolerance of the plate we use is under 0.01 in or 6 percent of plate thickness we should consider that in the thickness calculation. so for example if i use a516 gr.70, from where i can know its under-tolerance for calculation? in other words, in which spec or...
  6. B.Beykaee

    tolerance on diameter

    hello every body where on b31.3 is about tolerance of diameter(oval) after welding plate for fabricate a pipe?
  7. B.Beykaee

    WHICH PRESSURE??

    IN B31.3, FOR WALL THK. CALCULATION, DESIGN PRESSURE IS USED. THE QUESTION IS WHY THE PIPE RESIST AGAINST TEST PRESSURE WHICH IS AT LEAST 1.5 X DESIGN PRESSURE. FOR EXAMPLE , NOW I HAVE A REQUISITION FOR A 24" STRAIGHT PIPE WITH THESE SPECS: 1-DESIGN PRESSURE =28 BARG 2-DESIGN TEMPERATURE= 300 C...
  8. B.Beykaee

    impact test requirement for c.s.

    hi every body i need to know that astm a105 flange if normalized, belongs to which curve in asme b31.3, Fig. 323.2.2A Minimum Temperatures Without Impact Testing for Carbon Steel Materials???? in table a-1 materials with heat treatment are not listed, like this material. please help me to...

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