Sir , doubt , What I uderstansd is if material is preheated for thickness between 32 mm to 38 mm then pwht is not required , unless UW 2 applies , Am i correct.
For upto 2" 2hrs + 15 min Our thickness 65mm Upto 2" ( 50.8mm) 2hrs Remaining thickness (14.2mm) As per condition over 2" Every 1" 15 minutes 1 minute =0.59mm 14.2*0.59 =9 minutes approximately Total 2hrs 9minutes
Very much useful very simple explanation. Thank you.
Please continue to make videos like this.
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Very informative sir, please make more videos, thanks for uploading the video
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gr8 video.
Very nice explanation and the most awaited one👍
Excellent Presentation Sir
great presentation
Great thanks Sir
Thanks and well done
Thanks sir ji
Very good
Nice video
Very nice information Sir
Thank you
Sir , doubt , What I uderstansd is if material is preheated for thickness between 32 mm to 38 mm then pwht is not required , unless UW 2 applies , Am i correct.
sir how do you calculate for " 15 mm - 9 Minutes" ?
The calculation should be: 15minutes / 25.4mm = .59055 then multiply by 15mm = 8.858 or 9minutes
My vessel SA516 GR 70, shell 22 thk, medium : ethanol ,For this case PWHT is required...?
Refer NACE RP 0472
how did you calculate 15mm for 9 min kindly explain
For upto 2"
2hrs + 15 min
Our thickness 65mm
Upto 2" ( 50.8mm)
2hrs
Remaining thickness (14.2mm)
As per condition over 2"
Every 1" 15 minutes
1 minute =0.59mm
14.2*0.59 =9 minutes approximately
Total
2hrs 9minutes
Here is the calculation which is given by pradeep
how got 9 minute for 15mm?
15 mins for additional inch(25.4mm)hence for 15 mm thickness =
25.4 mm thickness 15 min
Then for 15mm how much?
15*15=225 / 25.4 = 8.85 then 9 mins
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