i must calculate a fittings under B31.8
the material is req. as MSS SP WPHY65
THIS FITTING WORK AT 105°C IT MEANS THAT THE CUSTOMER DON'T TAKE IN TO ACCOUNT THE TEMP. DERATING, AND USE A YIELD STRESS OF 448 N/mm (ROOT)
I SUPPOSE THAT IS NOT CORRECT, BUT WHERE I CAN FOUND THIS VALUE ??
"My" client now ask to me to perform (for another project)TRD calculation.
My Boss suggest me to take allowable stress for WB36
considering 2/3 Of Rp0.2 at temperature.
For P91 take it from Table A1 B31.1: i'm not agree because
with this value the min Wth. result bigger than requied.
I also...
Thank you for your help
I only want to advise you that our customer give to us
a table with the allowable stress to take in to account
I don't know why but tha values are higer than that listed in the Code case 2353:
from 20°C to 420°c = 203 Mpa
430° = 200 "
440° =...
I need some help!!!
I'm a beginner
i must perform the strenght calculation about fittings for
power station
Usually i do that By ASME B31.1
but this material (WB36)is not listed an that rules
and i cannot find the allowable stesscan be apply
sorry for my english
