Elbow thickness calculation
Elbow thickness calculation
(OP)
Dear colleages:
At this moment, i'm making an elbow thickness calculation.
Material carbon steel, pressure 6 barg , NPS 10 inch, this data is only for reference not relevant.
I don't wanna use shell calculation because i consider that it should be corrected using radius of curvature, etc. I was looking for formules in code but my searching was an iddle time. Does any colleague know which is the adequated formula for to determine elbow thickness?
Your promptly answer will be very appreciated.
Best Regards
Luike
At this moment, i'm making an elbow thickness calculation.
Material carbon steel, pressure 6 barg , NPS 10 inch, this data is only for reference not relevant.
I don't wanna use shell calculation because i consider that it should be corrected using radius of curvature, etc. I was looking for formules in code but my searching was an iddle time. Does any colleague know which is the adequated formula for to determine elbow thickness?
Your promptly answer will be very appreciated.
Best Regards
Luike





RE: Elbow thickness calculation
Why are you messing about calculating elbow wall thickness? If you look at the piping codes as long as the elbows (to ASME B16.9) are specified with the same thickness as straight pipe then end of story.
RE: Elbow thickness calculation
I understand this point but another codes make correction due to radius, i know that it will be very important to take in account 12.5% thickness due to tolerance.
Due to this , i just want to compare another experience but i'll follow your advise.
Once again , thanks.
RE: Elbow thickness calculation
EJL
RE: Elbow thickness calculation
Thickness 't' excluding tolerance and corrosion:
t= PD / {2[(SEW/I) + PY]}
Intrados:
I= {4(R1/D) − 1} / {4(R1/D) − 2}
Extrados:
I = {4(R1/D) + 1} / {4(R1/D) + 2}
RE: Elbow thickness calculation
FITTING CALCULATION Elbow thickness calculation
SAMPLE SETUP
IN ADDORDANCE WITH UG-44, PRESSURE TEMPERATURE RATINGS FOR ASME B16.9 AND B16.11
FITTINGS SHALL BE CALCULATED AS FOR STRAIGHT SEAMLESS PIPE, REFER UG-27
PER UG-27C(1) CIRCUMFERENTIAL STRESS
TH'K LIMITED TO 0.5 R, DESIGN PRESSURE LIMITED TO 0.385SE
L S THILL