Hi,
I am using X19CrMoNbVN11-1 material in some of the pressure boundary bolts. The operating temperature is 560 deg C. This is very good creep resistant material. But for the stress levels that bolt is having the calculated creep rupture is at 40000 hours. How do I interpret this results. I...
Hi,
I am designing a high temperature steam shut off valve. The design pressure is 160 barG and temperature is 570 deg C. The design code is ASME Section Viii division 1. The body and bonnet material is A217-C12A. This is for an European customer and PED category required is IV. I have PMA for...
Hello All,
I'm designing a control valve body for a temperature of 610 deg C and steam service. I wanted to design the valve body and bonnet as per ASME section Viii, division 1. But I could not find the allowable stress values for this material for this material from ASME Section II-D. I am...
Hi,
I'm designing a valve as per ASME Sec VIII div -1. To maximize the capacity I'm trying to make the inlet into Oval shape. But I'm not sure how to calculate the Hoop stress for a given internal pressure. Please see attached oval example.
Thank you in advance.
