Materials & Welding: Re: [MW:33189] RE: PWHT Segment Wise for 9 Meter Dia Vessel

Monday, June 27, 2022

Re: [MW:33189] RE: PWHT Segment Wise for 9 Meter Dia Vessel

Thank You Experts for Valuable Comments.

As per discussion in trailing mail, Conclusion: as per Code localized PWHT Segment Wise using Induction Coil Heating Method can be considered for this Job.

Regards,

On Sun, Jun 26, 2022 at 1:06 PM 'james gerald' via Materials & Welding <materials-welding@googlegroups.com> wrote:

Straight to the point Mr. Vishwas.

Thanks & Regards
J.Gerald Jayakumar

On Sunday, 26 June, 2022 at 10:54:11 am GMT+4, Vishwas Keskar <vvkeskar123@gmail.com> wrote:

Dear Vishal
As I understand correctly , the vessel circumference is 9 mtr and your query is that you want to carry out the PWHT of the Circumferemtial seam in segments.

The answer is No . You have to carry out PWHT of ENTIRE Circumferencial joint in ONE cycle.
You can do it by LOCAL PWHT method by wrapping Electric Resitance Coil on job and attaching job thermocouples.

Many HT contracter are doing such type jobs regularly.
Thanks
Vishwas Keskar
IWE- International Welding Enginner

On Sat, 25 Jun 2022, 20:21 , <pgoswami@rogers.com> wrote:
Hi,
It's allowed by Sec VIII, DIV1. Please see the highlighted clauses as below.
Thanks.

Pradip Goswami.P.Eng, IWE.
Independent Welding & Metallurgical Engineering Specialist
Saudi Aramco Approved Designated Project Welding Engineer (DPWR)
Qatar Petroleum Approved, SME-Materials & Corrosion Engineering.
Linkedin: https://www.linkedin.com/in/pradip-goswami-2999855/
Email:pgoswami@rogers.com,pradip.goswami@gmail.com
Cell/Whasapp:1-905-9793232

UW-40 PROCEDURES FOR POSTWELD HEAT TREATMENT:
From: vishal hirde <vishalhirde1988@gmail.com>
Sent: June 25, 2022 8:24 AM
To: materials-welding@googlegroups.com
Subject: PWHT Segment Wise for 9 Meter Dia Vessel

Dear All,

We are fabricating a Vessel of Diameter 9 Meter at Site, requires PWHT: Material Grade SA 516 Gr. 70.

For Circumferential Joint PWHT can it be performed Segment Wise as diameter is more??

Pl. Confirm as per ASME Sec VIII Div 1 can it be done in Segment Wise.

--
With Best Regards,

Vishal Hirde

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