Requirements Of PWHT for the Cross Country Pipe Lines - Reg

[Amul Raj]

Dear Experts,

We have done PQR with PWHT for the Material APL 5L Grade X60, and the coupon Size is 40 Inch & the Thickness is 38 mm with the Construction code application of API 1104 (Cross Country Pipe Line)

Based on the results we prepared WPS Also, But, As per API 1104 for 38.00 mm THK PWHT is not required 

Now The Aramco PID instructed to follow the WPS to do all the Joints PWHT

What is the remdy for this & hat should we do 

Kindly drop your advise 

Thanks & Warm Regards,

Amul Raj T

QA/QC Welding 

Samsung Engg, KSA  

 

[Anup N K E]

Also you can mention in your WPS that the WPS having PWHT is only applicable for thickness above 38mm to the maximum thickness qualified . Please refer SAES W - 012 and SAIC - W- 2042.

Regards,

Anup

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[Anup N K E]

Dear Amul,

What is the design code.? If it is ANSI B 31.4 or B 31.8  then PWHT is required above 38 mm.
Design code will specify PWHT requirements which is to be incorporated  while making the WPS using section IX or API 1104.

Regards,

Anup

On 5 Mar 2015 13:36, "Amul Raj" <win....@gmail.com> wrote:

[S.Mohammed]

AMUL,

ARAMCO IS RIGHT.

Refer design code for PWHT requirement.

B31.4 OR 31.8.


B31.8 require 32mm PWHT.

you.will have to.do.it pwht for all the joints.

regards,

[Faisal Shahzad Meer]

For PWHT YOU HAVE TO CONSULT B31.4 OR B31.8 WHICH EVER IS APPLICABLE AS PER SAES-W-012 (SAUDI ARAMCO ENGINEERING STANDARD.

Regards

Faisal Shahzad Meer
Project Quality Supervisor-Welding
J-505, Saudi Aramco Wasit Downstream Pipelines Project

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[mv_srinivasan]

Sir,

which design code is used whether ASME 31.4  or ASME 31.8.

Sent from Samsung Mobile

-------- Original message --------
From: Amul Raj
Date:05/03/2015 11:58 (GMT+03:00)
To: material...@googlegroups.com
Subject: [MW:22939] Requirements Of PWHT for the Cross Country Pipe Lines - Reg

Dear Experts,

We have done PQR with PWHT for the Material APL 5L Grade X60, and the coupon Size is 40 Inch & the Thickness is 38 mm with the Construction code application of API 1104 (Cross Country Pipe Line)

Based on the results we prepared WPS Also, But, As per API 1104 for 38.00 mm THK PWHT is not required 

Now The Aramco PID instructed to follow the WPS to do all the Joints PWHT

What is the remdy for this & hat should we do 

Kindly drop your advise 

Thanks & Warm Regards,

Amul Raj T

QA/QC Welding 

Samsung Engg, KSA  

 

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[Anup N K E]

Refer scope of work,  Isometric drawing and P & ID to find the applicable code.
Section 434.8.9 specifies about PWHT is ANSI B 31.4

Regards,
Anup

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[Karthik]

Hi,

Since your WPS qu

 

Thanks & Regards,alified with PWHT, you can't use this for without PWHT jobs.

Since your construction code doesn't reqire PWHT you have 2 option.

01. Do new WPS/PQR without PWHT

02. If you don't want to prepare new, then follow as per your existing WPS (as your client said)

(Karthik)

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[prasanta kumar Sethi]

Hi as per yr qualified WPS you have to do the PWHT because this is as per code says as well as  ARAMCO .

 

So sorry there is no other option for u. 

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[Dani Darwis]

Dear Expert,

 

Our vendor had purchased normalized plates from Sumitomo of steel making and Mill Cert clearly stated that the plates have been normalized but no sign or stamp “N” on plate. The problem is when the client reviewed and witnessed it, they don’t believe that the plate has been normalized and the question is what test needs to be conducted to prove that the plate has been normalized?

 

For your info: what do you think if the client ask for the following test:

1.       Tensile test and the specimen needs to be normalized first prior to test, acceptance criteria as per mill cert.

2.       Scanning Electron Microscope (SEM), acceptance criteria: no residual stress in the plate.

 

Your quick response is highly appreciated.

 

Regards

Dani

[Gopalakrishnan G]

As per my point of view ,above stated 1&2 criteria acceptable then u can proceed.  

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[Rems Okonkwo]

Hello Raj,

 

While Working on any project, you need to consider the client specification and the reference Code/Standard as stipulated in the contract document. Where there is conflit, the most strigent condition supercedes or issue a technical query to your client for clarification.

 

As per your query, you will need to check your client specification, they may have specifiy that PWHT is performed on such thinckness as 38mm and beside, your qualify WPS shall be limited to PWHT requirement and cannot be used otherwise.

 

I have a question for you, why did you qualify the WPS with PWHT if you do not want to use it and if you know the requirement of API 1104. What was on your mind when you are performing the WPQR and to what code have you qualified it?

 

Regards,

 

Rems Okonkwo (IWE)

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[Nandesh Kumar]

Addition to my previous reply on the below query:
As per 13.1.2 of ASTM A20 (Plates for Pressure Vessels)
"Plates that are required to be heat treated, and have been so heat treated, shall be marked by the party that performed the heat treatment, with the letters “MT” (denoting material treated) following the required ASTM designation mark"


ವಂದನೆಗಳೊಂದಿಗೆ / Best regards,

Nandesh Kumar Arasappa

P.S. : Please don't print this e-mail unless you really need to.

--------------------------------------------
On Sat, 14/3/15, Dani Darwis <dan...@centrin.net.id> wrote:

Subject: [MW:22971] Normalized plate of A516 gr 70
To: material...@googlegroups.com
Date: Saturday, 14 March, 2015, 5:44 PM

#yiv9294488321
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#yiv9294488321 Dear Expert,  Our vendor had purchased

normalized plates from Sumitomo of steel making and Mill
Cert clearly stated that the plates have been normalized but
no sign or stamp “N” on plate. The problem is when the
client reviewed and witnessed it, they don’t believe that
the plate has been normalized and the question is what test
needs to be conducted to prove that the plate has been
normalized?  For your info: what do you think
if the client ask for the following test:1.       Tensile
test and the specimen needs to be normalized first prior to

test, acceptance criteria as per mill cert.2.       Scanning

Electron Microscope (SEM), acceptance criteria: no residual
stress in the plate.  Your quick response is highly
appreciated.  RegardsDani

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[Nandesh Kumar]

First of all, MTC shall state that the plate is Normalized. As long as the heat number on Plate is matching with the MTC, it as acceptable. There is no such rule that the N shall be stamped on the plate, unless it is for Hydrofluoric Service (to be stamped as 'HF-N'), as required by Supplementary requirements per S54.8 of ASTM A516.

ವಂದನೆಗಳೊಂದಿಗೆ / Best regards,

Nandesh Kumar Arasappa

P.S. : Please don't print this e-mail unless you really need to.

--------------------------------------------
On Sat, 14/3/15, Dani Darwis <dan...@centrin.net.id> wrote:

Subject: [MW:22971] Normalized plate of A516 gr 70
To: material...@googlegroups.com
Date: Saturday, 14 March, 2015, 5:44 PM

#yiv8143571543
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#yiv8143571543 ol
{margin-bottom:0cm;}
#yiv8143571543 ul
{margin-bottom:0cm;}
#yiv8143571543 Dear Expert,  Our vendor had purchased

normalized plates from Sumitomo of steel making and Mill
Cert clearly stated that the plates have been normalized but
no sign or stamp “N” on plate. The problem is when the
client reviewed and witnessed it, they don’t believe that
the plate has been normalized and the question is what test
needs to be conducted to prove that the plate has been
normalized?  For your info: what do you think
if the client ask for the following test:1.       Tensile
test and the specimen needs to be normalized first prior to

test, acceptance criteria as per mill cert.2.       Scanning

Electron Microscope (SEM), acceptance criteria: no residual
stress in the plate.  Your quick response is highly

[meisam shokri arfaei]

Dear Dani,

For satisfaction of your client, you could do following:

1 - Metallography, But this test in this case may be risky, because of the effect of thermomechanical rolling and it is probable that you could not observe a big evidence.

2 - Impact testing, As the effect of normalizing process is to increase toughness, It could be more practical.

Regards

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ASNT NDT Level III

International Welding Engineer

Tel.: +98 21 66282127

Fax: +98 21 66282779

Mob.:+98 912 1394023

[Mhaskar Aly]

Dear Dani,

Write to mill and obtain letter of confirmation that heat treatment of plate done, also obtain authorization to stamp MT next Gr70 on plate, this may solve the purpose

Ali

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[zhy3...@gmail.com]

Dear raj:

    

    would you mind giving me a explanation about  whether PWHT is applied for following pipeline

    sour condensate pipeline  

    diameter : 20 inch  thickness: 10mm  length :164km

 

[Alan Denney]

There is no mandatory PWHT requirement in the codes for this diameter and wall thickness but since it is a sour service pipeline you will need to apply a mandatory maximum hardness for all areas of the weld, heat affected zone and parent metal of 248 HV10. Your contractor will have to achieve this in their welding procedure tests and in production. In theory if they fail to achieve it then PWHT can be applied (subject to doing this in a new welding procedure qualification) but it would be more practicable to revise the preheat levels and run a new procedure.

 

 

Alan Denney

AKD Materials Consulting Ltd

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[zhy3...@gmail.com]

在 2015年3月5日星期四 UTC+8下午6:36:41，Amul Raj写道：

[Alan Denney]

The point is that you qualified the procedure with PWHT and so you are saying by that ‘I intend to post weld heat treat the welds’. The solution is straightforward: requalify the procedure without PWHT, and see if that passes the requirements of the client specifications and the applicable pipeline codes.

 

Alan Denney

AKD Materials Consulting Ltd

 

From: material...@googlegroups.com [mailto:material...@googlegroups.com] On Behalf Of zhy3...@gmail.com

Sent: 14 September 2016 16:03
To: Materials & Welding <material...@googlegroups.com>

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