hi
please be informed that minor grinding of welds is accepted if you check the
welds by PT or MT.
BEST REGARDS
H.SARPASI
On Sunday, December 10, 2017, 2:36:55 PM GMT+3:30, 'GOPU NAIR' via Materials & Welding <materials-welding@googlegroups.com> wrote:
Dear Amit
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Minor grinding is permitted after hydraulic test.
Gooal
-- On Sun, 10 Dec 2017 at 15:53, Amit Vishwakarma<amitspvishwak@gmail.com> wrote:Dear Experts,--Please give your advice on grinding of pressure vessel after the hydro test as during final visual inspection we couldn't find any surface damage on the shell but it has been discovered after surface preparation for painting. The pattern of surface defects on the shell can be been seen and it may be because of rolling of shell plate or job roller.The vessel details as mentioned below & to meet the requirements of Aramco.MOC SA240 Gr316LThickness 18mmSize - Dia 3mtr x 20mt LengthHydro Test Pressure 150PSIPWHT- NAKindly suggest it can be acceptable to remove defects by grinding maintaining min thickness of plate considering plate thickness tolerance.RegardsAmit
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