Materials & Welding: Re: [MW:32309] Re: Back Weld at Pressure vessel

Tuesday, April 20, 2021

Re: [MW:32309] Re: Back Weld at Pressure vessel - U stamp

Bro ,

I don't think so you doesn't understand my question

What is the problem ? or what is your valid reason for rejection ?- all things we cannot accept whatever the fabricators or doing jobs , its should be according to project specification and code requirement

When defects are found, it must be repaired right ? whether in root or anywhere ! - there is a standard for repairing methods , there is any code mention that you can repair from inside , WPS it was not mentioned , how do you agree with these things ?..

Do you have any option other than repair ?-there is no Repair WPS and Procedure does not mention how they will repair

In any case, finally it going to be accepted with repair procedure ( Method statement, approved WPS for repair & further NDT ) - If they follow according to our project specifications we will accept otherwise it will be NCR for that company

On Mon, Apr 19, 2021 at 3:51 PM Ramesh <rameshkannandevaraj@gmail.com> wrote:

What is the problem to accept ? or what is your valid reason for rejection ?

When defects are found, it must be repaired right ? whether in root or anywhere !

Do you have any option other than repair ?

In any case, finally it going to be accepted with repair procedure ( Method statement, approved WPS for repair & further NDT )
Thanks and Regards
Rameshkannan D
"What you have learned is a mere handful; What you haven't learned is the size of the world – Avvaiyar"

On Mon, Apr 19, 2021 at 4:01 PM sankar bombay <sankar.bombay@gmail.com> wrote:

On Mon, Apr 19, 2021 at 11:39 AM Vishwas Keskar Welding Manager WELDING <vvkeskar123@gmail.com> wrote:
Is that WPS addressing -
QW 402 - Joint design - GTAW - Backing - With/Without
(Ref - QW256- GTAW - QW 402.5- Addition of backing is Non essential variable.)

if Both (Backing - With/Without ) is addressed( which like normally is addressed), then there is no issue at all .
Eg-
QW 402-
Backing: With/Without

Root spacing: As per piping fabrication drawing

Backing Material (Type): Yes (Metal)

1. Metal - 2. Non-fusing Metal
3.   Nonmetallic NA   4. Others

The matter is to be resolved amicably . Meet QAC In charge along with Welding Engineer, Manufacturing Responsible. Explain him the details .
It shall be acceptable.

Regards

On Monday, April 19, 2021 at 7:20:46 AM UTC+4 sankar krishnan wrote:
Dear Gentlemen,

Good Evening, In our project Vessel joint thickness 10mm ,Process(GTAW+SAW),Single V joint
They completed Welding ,Few days later during Inspection we observed , They have done Internal Welding of the shell, As per WPS its not shown

Guys let me Know its can Accepted or Rejected

If Rejected , Please send Reference code standards

As per QW 402.5 Joints (Backing its non Essential ),Its mention Backing strip or also back welding

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