SA387 GR.11 CL.2 Vessel

[Manikandan J]

Dear Experts,

We have a Vessel with the following MOC.(API RP 934 C)

Material 1 : SA 387 GR.11 CL.2 + SA 240 GR.347 (3.2 mm Cladded) -80 MM

Material 2 : SA 387 GR.11 CL.2 - 25 mm

Requesting your Technical inputs for PQR establishment.

Regards,

Manikandan

KSA

[Vishwas Keskar Welding Manager WELDING]

Manikandan,

1)Qualify PQR as per ASME SEC IX  . Additionally  consider and comply to  (API RP 934 C) with  BM as    SA 387 GR.11 CL.2 with butt joint /PWHT 

2)Qualify PQR as per ASME SEC IX  . Additionally  consider and comply to  (API RP 934 C) with  BM as    SA 387 GR.11 CL.2 with  WOL of TYP 347  /PWHT

   For WOL follow process which you want to use FCAW/GMAW/SMAW  

These two WPS s shall satisfy  your production Welding as mentioned  in above  query 

Thanks and regards

Vishwas -IWE 

International Welding Engineer 

[james gerald]

It seems to be a plate material and do you have access to both sides of the joint. If so strip back 5 - 10 mm of clad inner side and weld the LAS using LAS WPS/PQR and do clad restoration using weld overlay PQR. 

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[P Goswami]

Please read through this RP, 934C. Guidelines are very clear you need to refer  all clauses of  7.2, 6.0, 7.0  and other additional clauses as applicable for qualification of the PQR.

 

Thanks.

 

Pradip Goswami.P.Eng, IWE.

Independent Welding & Metallurgical Engineering Specialist

Consultant: SNC Lavalin Inc. (Nuclear &Non-Nuclear)

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[james gerald]

what type of Joint is it.

1. Pressure vessel circum seam. seems unlikely due to huge thickness variation

2. Any Internal(like Ring) welding to the Clad.

3. Any External attachment to vessel.

Thanks & Regards

J.Gerald Jayakumar

--

[Vishwas Keskar Welding Manager WELDING]

Manikandan

1)Pl. qualify PQR as per ASME SEC IX and considering  (API RP 934 C) using base metals  SA 387 GR.11 CL.2 butt  joint /PWHT - SMAW + SAW 

   Use EB2R type consumables with Controlled Trace Elements  in Weld filler metals/  deposited welds 
2)Pl. qualify PQR as per ASME SEC IX and considering  (API RP 934 C) using base metals  SA 387 GR.11 CL.2   and WOL OF TYP 347  with PWHT 

    WOL process shall be SMAW/FCAW/GMAW what you intend to do during Production Welding .

This shall satisfy your above mentioned requirement  as mentioned above  query

   

Thanks

Vishwas - IWE 

International Welding Engineer

On Thursday, January 19, 2023 at 4:38:56 PM UTC+5:30 manikandan J wrote:

[babak]

DearJayakumar

Many thanks for your email. We use these materials only for structure in tieback in well. 

Regards 

Babak 

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On Mon., 23 Jan. 2023 at 6:07 am, 'james gerald' via Materials & Welding

<material...@googlegroups.com> wrote:

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