[MW:30190] Weld Proximity Analysis support required

Dear Experts,

For one of our project, we have done welding for various sizes ( 2", 3" , 4" , 6", 10" 14".16" with Min 5.5 T to Max 12.7 T ) of A106 Gr.B to A105N Flanges with Circ. Seams of 68 units, out of that only 10 units were done PWHT as per client requirements,  

as per the attached photo and also 2 number of CS 1/2" Nipples with an A105N Adaptor of 36 mm Dia welded on the pipe, 

but one of the adaptor weld touches the right end Circ. Seam, referring to the photo .

During design, we over looked it and all the design and drawings approved by owner, the design is as per ASME B31.3 2016 ED. the WPSs were approved, so fabrication was done and Hydrotest also done.

Now, before delivery, the Owner has sent their welding spec , which they have not sent EVER before and the spec mentions that min 50 mm gap to be maintained.

So, we recommended with a TQ for a Simulation Test to prove that the hardness on weld and HAZ not to exceed 248 HV 10 as per their spec.

But the owner needs Weld Ligament Analysis to be done for a detailed Engineering Analysis to prove the weld design is OK to proceed.

We do not have enough experience to perform  Weld Ligament Analysis in Korea.

Could you please suggest website Or a link with similar scenario for a Residual Stress check, acceptance range of welds, X-Ray Diffraction machine possibilities etc.

Thanks and Regards,

Saravanan Sornam,

Korea

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[MW:30186] She'll man hole tank

Dear all, 

Please,  how to proceed or way to welding the reinforcement pad and nozzle for manhole to shell?

Thanks

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Re: [MW:30186] WPS /PQR Approvel

If Lab is authorized by national, international (ISO/IEC 17025) or by the Client, you can review the parameters and you can approve.You should have adjustment there is no malpractice have done by both of them. You can also review any past experience with the lab and you can also go and witness the lab calibrations and qualifications, if everything OK then only you can make an NC for why there is communication gap happened? otherwise you can not reject the WPS unless there is any one suitable reason.

Just my opinion.

Best Regards,

Venkat. G

On Fri, Oct 18, 2019 at 2:38 PM Kannayeram Gnanapandithan <kgpandithan@gmail.com> wrote:

is vendor stamp holder

THANKS & BEST REGARDS,

KG.PANDITHAN, BE, IWE,  CSWIP 3.1,

ISO 9712 Level 2 in VT,

ASNT-Level II in PT,MT,RT & UT,

LA ISO 9001-2015,

International Welding Engineer. 

CONSULTANT-WELDING & QUALITY

Mobile no: +919940739349

On Fri, Oct 18, 2019 at 4:59 PM Dinesh Somwanshi <som.din@gmail.com> wrote:

Dear sir, 

If it's NABL approved lab in India,  may consider for approval. 

For EIL approved jobs, May not possible to approve. 

Applicable to Indian client works only. 

Regards

Dinesh

On Fri, Oct 18, 2019, 16:32 Santosh Patil <raj.san23@gmail.com> wrote:

Dear Members 

I have witnessed PQR of  SA312 TP 316 material 1" SCH 40  according to  Proposal WPS  , Test piece visually checked and send to Lab for check testing as per. Sec IX . also inform to vendor to be witness in Lab in the  presence of QC engineer . 

But vendor does not infirm to QC Engineer . and Lab test report is submitted . Now he pressurizes to approve WPS 

What shall I do..... 

S. B Patil

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+965 97604989, +919840502376 (WhatsApp only)

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[MW:30186] Re: Welding in 6061 T6 aluminium alloy

Thank you

if possible please provide party contact who expert in doing Al welding

On Friday, 25 October 2019 11:05:05 UTC+5:30, Bhima Kanjariya wrote:

hello friends

We have one aluminium alloy Bucket used in Urea Prilling tower (pics attached for reference)

We found a through crack in T-joint fillet welding of two plate

please advise how to weld and also suggest party who expert in welding aluminium

Thanks in Advance

Bhima Kanjariya

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Re: [MW:30185] Combining 2 PQRS

Dear experts

is there any WPS for welding cast iron plate 29 cm thickness

regards,

On Wednesday, January 18, 2017, 06:52:31 PM GMT+2, John Henning <jhenning@deltak.com> wrote:

Yes you can combine them. 

 

NO it will not meet his requirements as you will be limited to the qualification thicknesses for base metal and weld metal of the GTAW process.  See QW-200.4(a)(1) and QW-200.4(a)(2).  His combined weld cannot be greater than 2T and 2t for the GTAW -  i.e. 11.04mm for both.  Thus, the root cannot be made on the 12.70mm thick weld.

 

From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Manoj Singh
Sent: Wednesday, January 18, 2017 1:09 AM
To: materials-welding@googlegroups.com
Subject: RE: [MW:25924] Combining 2 PQRS

 

Yes u can pls.refer sec Ix welding general requirement.

On 17 Jan 2017 9:35 pm, "John Henning" <jhenning@deltak.com> wrote:

NO - Per ASME IX.

 

From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Lalit Malla
Sent: Tuesday, January 17, 2017 6:07 AM
To: Materials & Welding
Subject: [MW:25915] Combining 2 PQRS

 

Dear Expert,

 

I am having 2 PQRs i.e.:

1. 2" Sch. 80 Pipe (thk.-5.54mm) - GTAW (70S-2)

2. 6" Sch. 160 Pipe (thk.-18.26mm) - SMAW (7018)

 

My question is: Can I combine these 2 PQRs for buiding up one more making new WPS for 8" Sch. 80 Pipe (thk.-12.70mm) using GTAW+SMAW (Root and hot with GTAW and filling and capping with SMAW)

 

Thanx in advance

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Re: [MW:30184] Welding in 6061 T6 aluminium alloy

Hi,

The attached file might be useful to you.

Thanks& Regards,

 

(Karthik)

Karthikeyan.S

M: +66-892512282

E-mail : karthik6684@yahoo.com

On Friday, October 25, 2019, 12:35:11 PM GMT+7, Bhima Kanjariya <bhimakanjariya@gmail.com> wrote:

hello friends

We have one aluminium alloy Bucket used in Urea Prilling tower (pics attached for reference)

We found a through crack in T-joint fillet welding of two plate

please advise how to weld and also suggest party who expert in welding aluminium

Thanks in Advance

Bhima Kanjariya

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[MW:30183] Welding in 6061 T6 aluminium alloy

hello friends

We have one aluminium alloy Bucket used in Urea Prilling tower (pics attached for reference)

We found a through crack in T-joint fillet welding of two plate

please advise how to weld and also suggest party who expert in welding aluminium

Thanks in Advance

Bhima Kanjariya

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RE: [MW:30182] Hydrotest of Pipings

Hello,

NDE(RT) and Hydrotest both having different purpose.

NDE are carried out to ensure the defect free joints and hydrotest is carried out for strength well as leak test.

NDE we are only doing at weld and their HAZ area. However before putting in the system complete piping system need to be tested.

 

Incase of golden/ closure weld where Hydrotest is not possible there 200 NDE shall be carried out but this is not applicable for all the joints.

 

Regards

Aakash

 

From: materials-welding@googlegroups.com <materials-welding@googlegroups.com> On Behalf Of Eng.Mahmoud kamel
Sent: Wednesday, October 23, 2019 11:30 AM
To: materials-welding@googlegroups.com
Subject: Re: [MW:30176] Hydrotest of Pipings

 

Never , 

 

selection for RT 100% not mean no hydro test , only for golden joint which for few case hydro test not possible.

 

what ever you need you have to cover by Clint specification  and owner approval 

 

 

 

 

 

 

Best regards

mahmoud

00201009087426

 

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From: materials-welding@googlegroups.com <materials-welding@googlegroups.com> on behalf of Mohan <ggnanamalli@gmail.com>
Sent: Wednesday, October 23, 2019 5:18 AM
To: materials-welding@googlegroups.com <materials-welding@googlegroups.com>
Subject: [MW:30175] Hydrotest of Pipings

 

Dear Experts,

 

Kindly confirm whether we have did RT 100% -weld joints for the piping means no need of hydro-test.

If yes share the code reference.

 

Code of Construction : ASME B31.3

 

Regards

G Mohanraj

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Re: [MW:30176] Hydrotest of Pipings

Dear Sir,

Please see B31.3 Clause No.345.9 2016 Edition. Alternative Test of Leak Testing.

On Wed, Oct 23, 2019 at 10:58 AM Mohan <ggnanamalli@gmail.com> wrote:

Dear Experts,

Kindly confirm whether we have did RT 100% -weld joints for the piping means no need of hydro-test.

If yes share the code reference.

Code of Construction : ASME B31.3

Regards

G Mohanraj

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Kaushik Patel,
Surveyor,
Bureau Veritas - Gandhidham
Mobile: +91 9687000073.

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Re: [MW:30176] Hydrotest of Pipings

Never , 

selection for RT 100% not mean no hydro test , only for golden joint which for few case hydro test not possible.

what ever you need you have to cover by Clint specification  and owner approval 

Best regards

mahmoud

00201009087426

---

From: materials-welding@googlegroups.com <materials-welding@googlegroups.com> on behalf of Mohan <ggnanamalli@gmail.com>
Sent: Wednesday, October 23, 2019 5:18 AM
To: materials-welding@googlegroups.com <materials-welding@googlegroups.com>
Subject: [MW:30175] Hydrotest of Pipings

 

Dear Experts,

Kindly confirm whether we have did RT 100% -weld joints for the piping means no need of hydro-test.

If yes share the code reference.

Code of Construction : ASME B31.3

Regards

G Mohanraj

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RE: [MW:30176] Re: API 570 CBT RESULT.

Dear Group

Can anybody help with NDT to the weldolet which will connect with pipeline ,

 

Thanks

 

From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Raghu Raman
Sent: Tuesday, October 22, 2019 2:31 PM
To: materials-welding@googlegroups.com
Subject: Re: [MW:30174] Re: API 570 CBT RESULT.

 

Hi, the score system is still out of 550, 

 

Not sure if it includes the 25 questions, guess not, 

 

On Tue, 22 Oct 2019, 19:29 Dave B, <davisboyer24@gmail.com> wrote:

Hi Raghu, 

 

Can you confirm that the results are still based out of 550? Does this have to do with the 25 questions not counted on the test? 

 

Thank you

 

On Monday, July 8, 2019 at 12:18:32 AM UTC-4, Raghu Raman wrote:

Hi, i having been preparing for API Exams for quite some time. Apparently the total score is 550. Passing mark is around 390 to 410, can fluctuate up and down depending on the bell curve

 

Learnt this info from a reliable source

 

Cheers

 

 

 

On Fri, 3 May 2019, 11:13 Irakli, <irakli.b...@gmail.com> wrote:

Hello

 

I got final official score today, it says 414 and pass. no percentage of modules, just color graphs. So, passing score was 400 and I got 414, how many questions is equivalent to this score?

 

Thanks

On Thursday, January 17, 2019 at 7:53:56 AM UTC+4, jaisen wrote:

Scaled Scoring

The purpose of scaled scores is to report scores for all candidates on a consistent scale by taking the raw score and calculating it to a common scale. This method ensures that scores can be fairly and accurately compared across various versions of exam forms or tests taken on different dates.  In other words, the total number of correctly answered questions that correspond to the passing scaled score may be slightly different per form. Following the credentialing industry's best practices, API also utilizes multiple forms during the same exam period. To achieve comparability within these forms, API has implemented scaled score reporting for all exams.

In order to ensure uniformity, the same scale is used across all ICP exams. Prometric uses a scale from 200 to 500 to accommodate all test lengths for ICP certifications. The passing scaled score for all exams is 400, which takes into account previous exam data of raw scores and percentage of correct answers. Scaled scores on different forms will be equivalent and interchangeable. This means that if two candidates taking different forms receive the same scaled score, the two candidates have achieved the same level of performance on the exam. Score reports emailed to candidates will not include number of questions answered correctly but their converted scaled score.

 

On Wed, Jan 16, 2019 at 8:17 PM IrakliB <irakli.b...@gmail.com> wrote:

Can you tell little bit more about scaling?

On Thursday, November 8, 2018 at 8:56:49 AM UTC+4, King wrote:

Anyone know how will this new grading scale work? It's a scoring scale that's 200 to 500 and you need a 400 and above to pass API exam.

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[MW:30175] Hydrotest of Pipings

Dear Experts,

Kindly confirm whether we have did RT 100% -weld joints for the piping means no need of hydro-test.

If yes share the code reference.

Code of Construction : ASME B31.3

Regards

G Mohanraj

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Re: [MW:30174] Re: API 570 CBT RESULT.

Hi, the score system is still out of 550, 

Not sure if it includes the 25 questions, guess not, 

On Tue, 22 Oct 2019, 19:29 Dave B, <davisboyer24@gmail.com> wrote:

Hi Raghu, 

Can you confirm that the results are still based out of 550? Does this have to do with the 25 questions not counted on the test? 

Thank you

On Monday, July 8, 2019 at 12:18:32 AM UTC-4, Raghu Raman wrote:

Hi, i having been preparing for API Exams for quite some time. Apparently the total score is 550. Passing mark is around 390 to 410, can fluctuate up and down depending on the bell curve

Learnt this info from a reliable source

Cheers

On Fri, 3 May 2019, 11:13 Irakli, <irakli.b...@gmail.com> wrote:

Hello

I got final official score today, it says 414 and pass. no percentage of modules, just color graphs. So, passing score was 400 and I got 414, how many questions is equivalent to this score?

Thanks

On Thursday, January 17, 2019 at 7:53:56 AM UTC+4, jaisen wrote:

Scaled Scoring

The purpose of scaled scores is to report scores for all candidates on a consistent scale by taking the raw score and calculating it to a common scale. This method ensures that scores can be fairly and accurately compared across various versions of exam forms or tests taken on different dates.  In other words, the total number of correctly answered questions that correspond to the passing scaled score may be slightly different per form. Following the credentialing industry's best practices, API also utilizes multiple forms during the same exam period. To achieve comparability within these forms, API has implemented scaled score reporting for all exams.

In order to ensure uniformity, the same scale is used across all ICP exams. Prometric uses a scale from 200 to 500 to accommodate all test lengths for ICP certifications. The passing scaled score for all exams is 400, which takes into account previous exam data of raw scores and percentage of correct answers. Scaled scores on different forms will be equivalent and interchangeable. This means that if two candidates taking different forms receive the same scaled score, the two candidates have achieved the same level of performance on the exam. Score reports emailed to candidates will not include number of questions answered correctly but their converted scaled score.

On Wed, Jan 16, 2019 at 8:17 PM IrakliB <irakli.b...@gmail.com> wrote:

Can you tell little bit more about scaling?

On Thursday, November 8, 2018 at 8:56:49 AM UTC+4, King wrote:

Anyone know how will this new grading scale work? It's a scoring scale that's 200 to 500 and you need a 400 and above to pass API exam.

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Thanks and Regards 

-Jaisen Antin Joseph-

ph:+65 94572372

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Re: [MW:30173] Re: API 570 CBT RESULT.

Hi Raghu, 

Can you confirm that the results are still based out of 550? Does this have to do with the 25 questions not counted on the test? 

Thank you

On Monday, July 8, 2019 at 12:18:32 AM UTC-4, Raghu Raman wrote:

Hi, i having been preparing for API Exams for quite some time. Apparently the total score is 550. Passing mark is around 390 to 410, can fluctuate up and down depending on the bell curve

Learnt this info from a reliable source

Cheers

On Fri, 3 May 2019, 11:13 Irakli, <irakli.b...@gmail.com> wrote:

Hello

I got final official score today, it says 414 and pass. no percentage of modules, just color graphs. So, passing score was 400 and I got 414, how many questions is equivalent to this score?

Thanks

On Thursday, January 17, 2019 at 7:53:56 AM UTC+4, jaisen wrote:

Scaled Scoring

The purpose of scaled scores is to report scores for all candidates on a consistent scale by taking the raw score and calculating it to a common scale. This method ensures that scores can be fairly and accurately compared across various versions of exam forms or tests taken on different dates.  In other words, the total number of correctly answered questions that correspond to the passing scaled score may be slightly different per form. Following the credentialing industry's best practices, API also utilizes multiple forms during the same exam period. To achieve comparability within these forms, API has implemented scaled score reporting for all exams.

In order to ensure uniformity, the same scale is used across all ICP exams. Prometric uses a scale from 200 to 500 to accommodate all test lengths for ICP certifications. The passing scaled score for all exams is 400, which takes into account previous exam data of raw scores and percentage of correct answers. Scaled scores on different forms will be equivalent and interchangeable. This means that if two candidates taking different forms receive the same scaled score, the two candidates have achieved the same level of performance on the exam. Score reports emailed to candidates will not include number of questions answered correctly but their converted scaled score.

On Wed, Jan 16, 2019 at 8:17 PM IrakliB <irakli.b...@gmail.com> wrote:

Can you tell little bit more about scaling?

On Thursday, November 8, 2018 at 8:56:49 AM UTC+4, King wrote:

Anyone know how will this new grading scale work? It's a scoring scale that's 200 to 500 and you need a 400 and above to pass API exam.

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Thanks and Regards 

-Jaisen Antin Joseph-

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[MW:30172] weld thickness

All Answer : No
Because range qualification welder for production 2t, So E6010 max 0,2 Inch and E7018 max 0,664 Inch
refer to QW 451 ASME IX

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Re: [MW:30165] NEED REFERENCE CODE

Dear Minhas

What  is your specification or design requirement ??  You may opt for 100 % , sample , spot or even no RT .. ask your designer .

On Fri, 11 Oct 2019 at 11:12, Minhas Arshad <minhasarshadm08@gmail.com> wrote:

Dear Experts,

I would like to ask from all of you that i am working one of the project. I would like to confirm that butt welds with full penetration needs 100 percent radiographic test, is there any reference code? 

I have review the ISO 15614 code table 1 is about examination and testing of the test pieces should i consider this code to QIP.

Regards

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[MW:30165] weld thickness

Interpretation number please

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[MW:30165] Hydrotest of Pressure Vessel

No... But both having same requirements of hydrotest...

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Re: [MW:30165] NEED REFERENCE CODE

Please check your design code and design specification... Otherwise tell us your design code we will explain

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[MW:30165] Reg. Welding

Hello expert,
I want to learn welding from basic to advance. Please suggest Books. If you are having then please forward...
Thanks

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Re: Atención valide origen![MW:30165] Fwd: Nozzle crack propagation

This is not ss material... Because in ss will not have such type/ pattern of corrosion

On Fri, Oct 18, 2019, 11:44 Dinesh Somwanshi <som.din@gmail.com> wrote:

Dear sir, 

I may feel crack due to 🔨 hammer or I. Proper handling & propagate after heat. 

Regards

Dinesh

On Fri, Oct 18, 2019, 08:54 Hernan Arturo Castillo Mier <Hernan.Castillo@ecopetrol.com.co> wrote:

Hello

Initially, in my opinion there is not SS flange, but you can check, by using the devise for that.

This corrosion evidence indicate that the material isn´t SS.

According to the picture, the crack is far away from the weld. We can suppose that that the failure in not associated to the welding process, but the material quality.

                                                                                                                                                                                               

 

Hernán Castillo Mier

Ingeniero Senior Confiabilidad e Integridad

FACILITADOR AUTORIDAD TÉCNICA EQUIPO ESTÁTICO

INSPECTOR AUTORIZADO

API 510 (33119)

Avantel: 8*1571

Teléfono: 668-2396

 

De: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] En nombre de Chiranjeevi A
Enviado el: miércoles, 16 de octubre de 2019 3:32 PM
Para: materials-welding@googlegroups.com
Asunto: Atención valide origen![MW:30153] Fwd: Nozzle crack propagation

 

 

Dear All,

   Please find the attached snap, we found a crack circumferentially. The nozzle size is 6" and the material is SS.

 

  The following plant is under construction and the vessel erected around 1yr back. There is an argument that because of pipe loads that are not supported yet, it created tension and lead to crack.  Even I surprised that how a steel material started cracked like brittle for just for a few external loads. (This not the correct reason)

 

I clearly explained that any steel material that we design to be below the yield value. When the load beyond the ultimate limit it leads to fatigue and finally crack. This situation we can expect in operation if there is cyclic loading and the connected piping not supported properly. (which is an impossible situation).

 

 Finally, I suspect that 

 - the material of the nozzle is not SS. (Maybe zinc coated)

- (or) Because of  corrosion

- 

(or) during welding, it created a weaker section and started crack initiation for the external loads.

 

Experts kindly share your opinion and suggestions.

 

Thanks & Regards

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