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Re: [MW:34332] Hydro failure

By Materials & Welding
Hi Raghu,
The crack is on the weld.

Thanking You.
I remain.

Best Regards,
Sudipto Banerjee, BE (Mech.), C.Eng. (India), FIE

Mobile UAE: +971(0)503946212
Mobile India: +91 9987561673 (Whats app no.)



On Thursday, June 15, 2023 at 01:55:20 PM GMT+4, Raghuram Bathula <raghurambathula@gmail.com> wrote:


Dear Sudipto
what is the location of failure, weld, HAZ, BM (which side)? NDE may not detect minute linear flaws, you need run full failure investigation on samples at laboratory, 

On Thu, 15 Jun 2023 at 15:21, 'sudipto banerjee' via Materials & Welding <materials-welding@googlegroups.com> wrote:
Hi All,
One LTCS ASME DIV 1 vessel failed in Hydrotest in the joint of 2"LWNRF with Body blind flange. Its a set on type welding.
Nozzle is of SA 350 Gr. LF2 CL1 (16.7 thk) and the body blind flange of SA 765 Gr II (117 thk).
The UT test of the joint shows satisfactory.

Can anyone tell what cud be the possible reasons pls.

Thanking You.
I remain.

Best Regards,
Sudipto Banerjee, BE (Mech.), C.Eng. (India), FIE

Mobile UAE: +971(0)503946212
Mobile India: +91 9987561673 (Whats app no.)

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