API574 Table 1 provide the Outside diameter. Table 3 provide the permissible tolerances. Hence, for SA106 provide the +-12.5% as manufacturing tolerance.
Thanks for this wonderful lecture Just wanted to clarify/get clarified on your explanation of Weld Joint Strength Reduction Factor You mentioned that in CS pipes if temperature is greater than 900deg F, we have to refer to the table. But in general, all CS pipes have W=1.
Correct, Or in other word: the thickness of the standard pipe after manufacturing tolerances has 87.5% or 0.875 of it's nominal thickness for sure, so you can count od .875 of thickness.
Hello! Which of the nozzle wall thickness values is the rejection value? Calculated minimum wall thickness from int/ext pressure, or min wall thickness from UG-45? ta or tb?
dear inspection 4 industry thank lots for your efforts can I ask you a question? when I do piping wall thickness calculation with all B31.3 (last edition) code considerations I get some answers without identified schedule numbers according to B 36.10 M-1015 As example :24" with 20.62 mm wall thickness as you note this wall thickness didn't have a schedule number while (schedule 40 for 17.48 mm ) and (schedule 60 for 24.61 mm) can you kindly provide me with your answer and advise
Sir the temperature range is given upto 1500 Fahrenheit only for SS materials. What should i do if I need to calculate the pipe thickness for SS material which has the operating temperature 1000deg Celsius?
Table A-1 Basic allowable stresses in tension for metals. shows 750-degree is (17300) but in the solution above its stated 13900. Please any explanation to that. thanks
I'm a pipefitter/welder 20 years in the field in Florida, n I'm keeping right up with this stuff,
API574 Table 1 provide the Outside diameter.
Table 3 provide the permissible tolerances. Hence, for SA106 provide the +-12.5% as manufacturing tolerance.
I wish my collage tough us this . Awesome teaching .
Very good presentation. Covered the require concepts.
Thanks for this wonderful lecture
Just wanted to clarify/get clarified on your explanation of Weld Joint Strength Reduction Factor
You mentioned that in CS pipes if temperature is greater than 900deg F, we have to refer to the table. But in general, all CS pipes have W=1.
That is correct
Great explanation well understood
Glad it was helpful!
Sir, tm=0.248/0.875, this 0.875 comes from where please can explain here- how you find 0.875? Thanks in advance.
He mentioned the 12.5% tolerance from b31.3.
NPS 8,
(XXX Strong) = 0.875. from Normal wall thickness table API RP 574 Pipe Schedule table
Pipe tolerance is 12.5%, which 0.125. Then, just minus it with, 1.0 (100%) -0.125 (12.5%) = 0.875 (87.5%)
Why it is divided and not done like (tn = tm + 12.5% of tm)
i.e. 1.125×tm= 0.279?
ASME II PART A1
16.3; Thickness - The minimum wall thickness at any point shall not be more than 12.5% under the specifie wall thickness.
Correct, Or in other word: the thickness of the standard pipe after manufacturing tolerances has 87.5% or 0.875 of it's nominal thickness for sure, so you can count od .875 of thickness.
Hello! Which of the nozzle wall thickness values is the rejection value? Calculated minimum wall thickness from int/ext pressure, or min wall thickness from UG-45? ta or tb?
dear inspection 4 industry
thank lots for your efforts
can I ask you a question?
when I do piping wall thickness calculation with all B31.3 (last edition) code considerations I get some answers without identified schedule numbers according to B 36.10 M-1015
As example :24" with 20.62 mm wall thickness
as you note this wall thickness didn't have a schedule number while (schedule 40 for 17.48 mm ) and (schedule 60 for 24.61 mm)
can you kindly provide me with your answer and advise
Sir the temperature range is given upto 1500 Fahrenheit only for SS materials. What should i do if I need to calculate the pipe thickness for SS material which has the operating temperature 1000deg Celsius?
What weldung reduction factor in case of wrlded pipe A358 304H
Thanks a lot sir, it's very helpful
plz upload some more videos adout b31.3 calculations
What is the joint quality factor for welded pipes? 26" and above?
Gratings
Good presentation sir, t kindly send external pressure calculation presentation video.
Table A-1 Basic allowable stresses in tension for metals. shows 750-degree is (17300) but in the solution above its stated 13900. Please any explanation to that. thanks
excelent
Thank you very much
thanks
l thank you , great...
Thanks sir
افتخار ایرانیها هستی مهندس 😍😍
After all this I just gotta go put in an expansion loop already,, lol
12.5% of what? not explained clearly.
Download automated pipe wall thickness calculation (per ASME B31.3) sheet at sites.google.com/view/xcelsolutionsin