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  • Users: MechEMain
  • Content: Threads
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  1. MechEMain

    Nozzle repad calculation for vessel under external pressure

    Hi there, If a vessel is under external pressure, can UG-37 be applied to nozzle reinforcement calculation? Thank,
  2. MechEMain

    Nipolet as a

    We are going to drill a 1/2" hole on a 1.5" blind flange. And then use a 1/2" nipolet as a connection. Is this acceptable? Can a nipolet be welded to the flange? Thanks?
  3. MechEMain

    Does UCS-68(c) apply to SA 516-70N?

    Hi, I am trying to determine a MDMT for a vessel which is made of SA 516-70N. My question is: 1. Is SA 516-70N still P1 material? 2. If this vessel is post weld heat treated? Can I apply UCS-68(c) to this vessel? 3. How will PWHT affect a normalized material? Thanks,
  4. MechEMain

    Furnace tube pinch

    Does anyone know how to decide at what pressure the pinching should stop so that the tube is not over pinched or not pinched enough? Thanks,
  5. MechEMain

    Rectangular Vessel

    For rectangular vessel, what code should I use for tmin calculations? Thanks,
  6. MechEMain

    Broken valve stem

    If a valve stem is broken, can it be welded back together in field?

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