Re: [MW:34254] PQR WITH TWO WELDING PROCESS TO SEPERATE IT

You can prepare WPS for SMAW only. considering essential variables.

On Tue, May 30, 2023, 4:58 PM QA/QC <adnanziad49@gmail.com> wrote:

Dear master 

please can you advise me i have some doubt 

in our project i have a PQR qualify with gtaw + smaw butt weld 

Detail :

 

7.14 to 20 (CS & LTCS)
GTAW  5 mm +SMAW 9
ER70S-6 + E7018-1 

and i want to qualify to only SMAW PROCESS is it possible or no 

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Re: [MW:34255] Max allowable machining thickness for qualifying PQR

You can do machining as per your requirement But for qualification range your governing thickness will be 12.6mm. 

On Mon, May 29, 2023, 8:04 AM JITHIN GOPINATH <2k9jithin@gmail.com> wrote:

Sir,

Can anyone advice me about the maximum allowable machining thickness for qualifying PQR.

For example I have a pipe with thickness 15.88 I want to reduce the thickness to 12.6 is that possible? If there any limitations for machining the thickness..

Please advise...

Regards

Jithin

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[MW:34253] RE: 34250] Re: Max allowable machining thickness for qualifying PQR

if you specify the design code, it will be easier to respond to your inquiry. However, according to ASME B31.3 you can Taper the wall thickness maximum to 30 degree.

 

 

 

 

 

 

From: materials-welding@googlegroups.com <materials-welding@googlegroups.com> On Behalf Of biennd
Sent: Wednesday, May 31, 2023 12:17 PM
To: Materials & Welding <materials-welding@googlegroups.com>
Subject: [MW:34250] Re: Max allowable machining thickness for qualifying PQR

 

Taping to matching thickness --> ok.

 

On Monday, May 29, 2023 at 9:34:36 AM UTC+7 JITHIN GOPINATH wrote:

Sir,

Can anyone advice me about the maximum allowable machining thickness for qualifying PQR.

For example I have a pipe with thickness 15.88 I want to reduce the thickness to 12.6 is that possible? If there any limitations for machining the thickness..

Please advise...

 

Regards

Jithin

 

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[MW:34252] RE: 34251] Re: PQR WITH TWO WELDING PROCESS TO SEPERATE IT

Yes its possible, You can go for only SMAW considering all other essential variable

 

QW-200.2(f) One WPS. Several WPSs may be prepared from the data on a single PQR (e.g., a 1G plate PQR may support WPSs for the F, V, H, and O positions on plate or pipe within all other essential variables). A single WPS may cover several sets of essential variable ranges as long as a supporting PQR exists for each essential and, when required, supplementary essential variable [e.g., a single WPS may cover a thickness range from 1/16 in. (1.5 mm) through 11/4 in. (32 mm) if PQRs exist for both the 1/16 in. (1.5 mm) through 3/16 in. (5 mm) and 3/16 in. (5 mm) through 11/4 in. (32 mm) thickness ranges].

 

 

 

From: materials-welding@googlegroups.com <materials-welding@googlegroups.com> On Behalf Of biennd
Sent: Wednesday, May 31, 2023 12:15 PM
To: Materials & Welding <materials-welding@googlegroups.com>
Subject: [MW:34251] Re: PQR WITH TWO WELDING PROCESS TO SEPERATE IT

 

Hi there,

 

May you check in which standard refers to.

I understood, ASME IX allowed for thickness of test coupon more than 13 mm.

 

Thanks

Bien ND

 

On Tuesday, May 30, 2023 at 6:28:48 PM UTC+7 QA/QC wrote:

Dear master 

 

please can you advise me i have some doubt 

in our project i have a PQR qualify with gtaw + smaw butt weld 

Detail :

 

7.14 to 20 (CS & LTCS)
GTAW  5 mm +SMAW 9
ER70S-6 + E7018-1 

 

and i want to qualify to only SMAW PROCESS is it possible or no 

 

 

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[MW:34250] Re: Max allowable machining thickness for qualifying PQR

Taping to matching thickness --> ok.

On Monday, May 29, 2023 at 9:34:36 AM UTC+7 JITHIN GOPINATH wrote:

Sir,

Can anyone advice me about the maximum allowable machining thickness for qualifying PQR.

For example I have a pipe with thickness 15.88 I want to reduce the thickness to 12.6 is that possible? If there any limitations for machining the thickness..

Please advise...

Regards

Jithin

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[MW:34251] Re: PQR WITH TWO WELDING PROCESS TO SEPERATE IT

Hi there,

May you check in which standard refers to.

I understood, ASME IX allowed for thickness of test coupon more than 13 mm.

Thanks

Bien ND

On Tuesday, May 30, 2023 at 6:28:48 PM UTC+7 QA/QC wrote:

Dear master 

please can you advise me i have some doubt 

in our project i have a PQR qualify with gtaw + smaw butt weld 

Detail :

 

7.14 to 20 (CS & LTCS)
GTAW  5 mm +SMAW 9
ER70S-6 + E7018-1 

and i want to qualify to only SMAW PROCESS is it possible or no 

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Re: [MW:34249] Chinese Steel to ASME BPVC Compliance

Dear Fernando

QW 422 ASME SEC IX 

This table enlists  P no Gr for specified materials .

For ASME SEC IX PQR  ,only LISTED materials are permitted to take range of qualification.

Unlisted materials ( Not listed  in QW 422 Table)need separate qualification.

For WPQ  , the Welder qualification can be done on other NON ASME materials with matching chemistry , Strength with ASME Listed materials Pl speak to AI for WPQs for unlisted material for WPQ.Any Client permission  . You may have to take or keep apprised about the same .

Thanks 

Vishwas IWE

Sent from my iPhone

On 31-May-2023, at 8:37 AM, Fernando L Neto <fernando.lescovar@gmail.com> wrote:



Hello, dear friends. I hope this email finds all of you well. 

Considering that there is a list of steels (and other metals) that are listed by the ASME BPVC Code, and also considering that there is a large list of steels produced that are not included in this official list, what are the steps to be taken to establish an equivalence and reclassify a steel such as Q235B (Chinese) to SA36 (I don't think it's only due to chemical composition and mechanical properties)

Any help will be very much appreciated. 

Não contém vírus.www.avast.com

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[MW:34248] Chinese Steel to ASME BPVC Compliance

Hello, dear friends. I hope this email finds all of you well. 

Considering that there is a list of steels (and other metals) that are listed by the ASME BPVC Code, and also considering that there is a large list of steels produced that are not included in this official list, what are the steps to be taken to establish an equivalence and reclassify a steel such as Q235B (Chinese) to SA36 (I don't think it's only due to chemical composition and mechanical properties)

Any help will be very much appreciated. 

Não contém vírus.www.avast.com

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[MW:34247] PQR WITH TWO WELDING PROCESS TO SEPERATE IT

Dear master 

please can you advise me i have some doubt 

in our project i have a PQR qualify with gtaw + smaw butt weld 

Detail :

 

7.14 to 20 (CS & LTCS)
GTAW  5 mm +SMAW 9
ER70S-6 + E7018-1 

and i want to qualify to only SMAW PROCESS is it possible or no 

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[MW:34246] RE: 34244] Max allowable machining thickness for qualifying PQR

No problem sir, the range qualify will be base on the actual thickness of test coupon/

 

From: materials-welding@googlegroups.com <materials-welding@googlegroups.com> On Behalf Of JITHIN GOPINATH
Sent: Sunday, May 28, 2023 1:54 PM
To: materials-welding@googlegroups.com
Subject: [MW:34244] Max allowable machining thickness for qualifying PQR

 

Sir,

Can anyone advice me about the maximum allowable machining thickness for qualifying PQR.

For example I have a pipe with thickness 15.88 I want to reduce the thickness to 12.6 is that possible? If there any limitations for machining the thickness..

Please advise...

 

Regards

Jithin

 

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[MW:34245] Re: Max allowable machining thickness for qualifying PQR

Jithin 

Query is not clear 

Pl. spell out clearly what is the  query  including background of the PQR in detail

Thanks 

Vishwas - IWE 

On Monday, May 29, 2023 at 8:04:36 AM UTC+5:30 JITHIN GOPINATH wrote:

Sir,

Can anyone advice me about the maximum allowable machining thickness for qualifying PQR.

For example I have a pipe with thickness 15.88 I want to reduce the thickness to 12.6 is that possible? If there any limitations for machining the thickness..

Please advise...

Regards

Jithin

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[MW:34244] Max allowable machining thickness for qualifying PQR

Sir,

Can anyone advice me about the maximum allowable machining thickness for qualifying PQR.

For example I have a pipe with thickness 15.88 I want to reduce the thickness to 12.6 is that possible? If there any limitations for machining the thickness..

Please advise...

Regards

Jithin

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Re: [MW:34243] WPS sample for stud welding

Refer AWS D1.1 forms 

You will get the format

Sent from my iPhone

On 25-May-2023, at 10:10 AM, JITHIN GOPINATH <2k9jithin@gmail.com> wrote:



Sir,

 Does anyone have the ARAMCO or non ARAMCO based WPS sample and  procedure for Stud welding. 

Regards,

Jithin

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[MW:34242] WPS sample for stud welding

Sir,

 Does anyone have the ARAMCO or non ARAMCO based WPS sample and  procedure for Stud welding. 

Regards,

Jithin

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Re: [MW:34241] Dissimilar chemical composition weld

Hi, 

Please refer ASME Sec I Non Mandatory Appendix - B Clause B-8

Thanks 

Parminder Singh

On Tue, May 23, 2023 at 8:27 AM Sintha Aidroos <iti.sintha@gmail.com> wrote:

Dear experts,

                Please advise about weld metal deposit  composition for base metal cuni 90/10 (UNS C 70600) and filler wire CuNi70/30 (UNS C 71500) combination of this material.We checked PMI at weld joint area but composition is not matching with ASME sec II part C .Can you give guidance for any PMI acceptance criteria?Here I attached PMI report for your review.

As per ASME sec II filler metal nickel percentage is 29-32 % and copper remaining.

 Regards

Aidroos      

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Re: [MW:34240] ER80S-G/ER80S-Ni1

Dear,

There is no Chemical composition specified in SFA  5.28   ER 80SG in accordance with ASME Sec.IIC and as long as it meets the other requirements of the Code, Manufacturer has the option to vary the chemical composition. Normally in ASME equipment, we get each Batch/lot of the Manufacturer's welding consumable certificate certified by an ASME AI that it belongs to a unique A-Number.

Similarly in Pipeline jobs, ER 80S-G is not specified in Filler metal grouping according to API 1104 2021 edition as per the snapshot below.

Since your PQR is qualified with ER80S-G, you can do production jobs with each batch of filler certified by Client.

But client requirement for Repair is to use ER 80SNi-1 which has a restricted chemical composition mostly restricting Ni less than 1% for sour service.

Hence you have to produce the Welding Manufacturer Consumable certificate for ER 80S-G  & ER80SNi-1(code reference) to the Client and assure that the chemical compositions of both Filler are matching or are within the Limits of ER80SNi-1 code requirement. 

Thanks & Regards

J.Gerald Jayakumar

On Tuesday, 23 May, 2023 at 01:20:34 pm IST, Baqer Shabbeer <engbaqer@gmail.com> wrote:

Dear experts,

I would appreciate your valuable response regarding the following inquiry.

The filler wire mentioned below is approved for our normal Gas Metal Arc Welding (GMAW) Welding Procedure Specification (WPS):

·        AWS Classification: ER80S-G

·        SFA Specification: 5.28

·        API 1104 Group: 5

·        Trade Name: PIPELINER 80Ni1

·        Base metal API 5L Gr. X65

However, for repair welding joints, our approved WPS (GMAW Welding) specifies the use of the following filler wire:

·        AWS Classification: ER80S-Ni1

·        SFA Specification: 5.28

·        API 1104 Group: 5

·        Trade Name: PIPELINER 80Ni1

·        Base metal API 5L Gr. X65

Unfortunately, my team used AWS Classification ER80S-G for the repair welding using Repair WPS.

I would like to know if this deviation is acceptable or if any corrective actions are necessary.

Thank you for your expertise and guidance.

Regards,

Baqer

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Re: [MW:34239] ER80S-G/ER80S-Ni1

What is the composition of 

ER80S-G

ER80S-Ni1

Send   MTCs  of both  the consumables

On Tue, May 23, 2023 at 1:20 PM Baqer Shabbeer <engbaqer@gmail.com> wrote:

Dear experts,

I would appreciate your valuable response regarding the following inquiry.

The filler wire mentioned below is approved for our normal Gas Metal Arc Welding (GMAW) Welding Procedure Specification (WPS):

·        AWS Classification: ER80S-G

·        SFA Specification: 5.28

·        API 1104 Group: 5

·        Trade Name: PIPELINER 80Ni1

·        Base metal API 5L Gr. X65

However, for repair welding joints, our approved WPS (GMAW Welding) specifies the use of the following filler wire:

·        AWS Classification: ER80S-Ni1

·        SFA Specification: 5.28

·        API 1104 Group: 5

·        Trade Name: PIPELINER 80Ni1

·        Base metal API 5L Gr. X65

Unfortunately, my team used AWS Classification ER80S-G for the repair welding using Repair WPS.

I would like to know if this deviation is acceptable or if any corrective actions are necessary.

Thank you for your expertise and guidance.

Regards,

Baqer

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[MW:34238] ER80S-G/ER80S-Ni1

Dear experts,

I would appreciate your valuable response regarding the following inquiry.

The filler wire mentioned below is approved for our normal Gas Metal Arc Welding (GMAW) Welding Procedure Specification (WPS):

·        AWS Classification: ER80S-G

·        SFA Specification: 5.28

·        API 1104 Group: 5

·        Trade Name: PIPELINER 80Ni1

·        Base metal API 5L Gr. X65

However, for repair welding joints, our approved WPS (GMAW Welding) specifies the use of the following filler wire:

·        AWS Classification: ER80S-Ni1

·        SFA Specification: 5.28

·        API 1104 Group: 5

·        Trade Name: PIPELINER 80Ni1

·        Base metal API 5L Gr. X65

Unfortunately, my team used AWS Classification ER80S-G for the repair welding using Repair WPS.

I would like to know if this deviation is acceptable or if any corrective actions are necessary.

Thank you for your expertise and guidance.

Regards,

Baqer

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Re: [MW:34237] SS GTAW Welding without Back purging.

For GTAW welding  -Single Vee - 33.4 OD, Full GTAW welding  - 

SS TO SS Welding   or Cr > 3 %  , backing gas is required to get sound root without any Oxidation.

The Oxygen is excluded by  purging Argon/Helium or other Inert mixtures  at root side to avoid Oxidation .

The root side is inaccessible  due to small diameter in your above case.

Backing gas shall be continued till 6mm deposit is welded . This is not a Code requirement but followed  as a good engineering practice across industries 

Thanks 

Vishwas 

On Monday, May 22, 2023 at 4:51:37 PM UTC+5:30 Anand Elankumaran wrote:

Hi Mr. Vishwas Keskar,

Single Vee butt weld  - Root/Hot/fill/cap-  full GTAW

pipe OD -33.4 mm

On Mon, May 22, 2023 at 7:47 AM Vishwas Keskar <vvkes...@gmail.com> wrote:

Are you intending to qualify PQR in 

Single Vee butt weld - No welding from Root side ?

Double Side Weld with back grinding DPT from root side ?

This will decide the PQR  purging requirement

Thanks

Vishwas

IWE 

Sent from my iPhone

On 22-May-2023, at 8:40 AM, Anand Elankumaran <email2...@gmail.com> wrote:



Dear experts,

Could you please check and advise the below query.

• Whether the back purging is a quality requirement or the ASME code is insisting on back purging on SS material while doing the GTAW process.
• Whether we can qualify SS -GTAW PQR without back purging or the ASME code does not allow doing PQR for austenitic steels without a back purge?
• Kindly advise how to do it without purging in SS GTAW Welding . Planning for PQR as well 

--

Thanks and Regards,

E. Anand,

Lead QA-QC,

Sohar,

Oman.

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Re: [MW:34236] Dissimilar chemical composition weld

Hi,

1. Alloys are acceplable if the alloying elements are each within 10% of the specifled range of values. 

2. Welds with consumables that match, or nearly match, the base meal composilion shall be within +12.5% of the ranges allowed in ASME SEC IIC for each element.Chemical Composition of Material specs must be verifled/avallable.

thank you 

On Tue, 23 May 2023 at 6:57 AM Sintha Aidroos <iti.sintha@gmail.com> wrote:

Dear experts,

                Please advise about weld metal deposit  composition for base metal cuni 90/10 (UNS C 70600) and filler wire CuNi70/30 (UNS C 71500) combination of this material.We checked PMI at weld joint area but composition is not matching with ASME sec II part C .Can you give guidance for any PMI acceptance criteria?Here I attached PMI report for your review.

As per ASME sec II filler metal nickel percentage is 29-32 % and copper remaining.

 Regards

Aidroos      

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[MW:34234] Re: PQR Qualification _welding electrode

Rajesh

No further qualification is required. Refer AWS A 5.36, it is mentioned there. This is relatively a new standard published by AWS.

On Thursday, October 4, 2018 at 5:14:43 AM UTC+3 RAJESH KUMAR wrote:

Dear Team,

For our PQR qualification ( Done in 2018) to flux coared wire for carbon steel,we use the wire clasified SFA/AWS A5.20  E71T-1C/1M/9C9M.

Today we received from our supplier wire classified SFA A5.36 E 71 T-1C 1A2-CS1.

The classification is different,so we have to issue new PQR qualification required?

Thanks & Regards

Rajesh kumar

055-5251449

Sharjah

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[MW:34234] Dissimilar chemical composition weld

Dear experts,

                Please advise about weld metal deposit  composition for base metal cuni 90/10 (UNS C 70600) and filler wire CuNi70/30 (UNS C 71500) combination of this material.We checked PMI at weld joint area but composition is not matching with ASME sec II part C .Can you give guidance for any PMI acceptance criteria?Here I attached PMI report for your review.

As per ASME sec II filler metal nickel percentage is 29-32 % and copper remaining.

 Regards

Aidroos      

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Re: [MW:34233] Minimum distance between two circumferential pipe joints

Please see the attached file

Alcindo O. J. Jr.

21 96676-1511

Em seg., 22 de mai. de 2023 às 04:49, port dickson <gokulgokulnath6@gmail.com> escreveu:

Dear Experts,

                              We need your advice regarding minimum distance requirements between 2 circumferential pipe joints .

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Re: [MW:34232] SS GTAW Welding without Back purging.

Hi Mr. Vishwas Keskar,

Single Vee butt weld  - Root/Hot/fill/cap-  full GTAW

pipe OD -33.4 mm

On Mon, May 22, 2023 at 7:47 AM Vishwas Keskar <vvkeskar123@gmail.com> wrote:

Are you intending to qualify PQR in 

Single Vee butt weld - No welding from Root side ?

Double Side Weld with back grinding DPT from root side ?

This will decide the PQR  purging requirement

Thanks

Vishwas

IWE 

Sent from my iPhone

On 22-May-2023, at 8:40 AM, Anand Elankumaran <email2uranand@gmail.com> wrote:



Dear experts,

Could you please check and advise the below query.

• Whether the back purging is a quality requirement or the ASME code is insisting on back purging on SS material while doing the GTAW process.
• Whether we can qualify SS -GTAW PQR without back purging or the ASME code does not allow doing PQR for austenitic steels without a back purge?
• Kindly advise how to do it without purging in SS GTAW Welding . Planning for PQR as well 

--

Thanks and Regards,

E. Anand,

Lead QA-QC,

Sohar,

Oman.

--
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Sohar,

Oman.

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[MW:34231] Re: Minimum distance between two circumferential pipe joints

Check consruction code and client specification for minimum diatances between welds , each will have a different recommentdations . refer and follow 

Example : ASME B 31.3 - does not given any recommendations on this subject.

Regards,

Srinivas Rao

Welding Engineer 

On Monday, May 22, 2023 at 12:52:04 PM UTC+4 Parminder Singh wrote:

minimum 4t 

On Monday, May 22, 2023 at 1:19:50 PM UTC+5:30 port dickson wrote:

Dear Experts,

                              We need your advice regarding minimum distance requirements between 2 circumferential pipe joints .

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[MW:34230] Re: Minimum distance between two circumferential pipe joints

minimum 4t 

On Monday, May 22, 2023 at 1:19:50 PM UTC+5:30 port dickson wrote:

Dear Experts,

                              We need your advice regarding minimum distance requirements between 2 circumferential pipe joints .

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Re: [MW:34228] Low Hydrogen Electrods

Pl get the electrodes back to  Stores

Identify these by AWS name.

Segregate fully intact flux covered electrodes 

Carry out baking as per Consumable Mfg  recommendation

After baking is completed transfer to Holding oven 

issue to Production as per  Consumable Slip Request as required

Make a record in baking  , Holding register 

Thanks 

Vishwas - IWE 

Sent from my iPhone

On 22-May-2023, at 10:45 AM, Baqer Shabbeer <engbaqer@gmail.com> wrote:



 

Hi, Good day,

 

When it comes to baking, you need to maintain the backing oven temperature 260-430 degrees Celsius. While maintaining a temperature of 120 degrees Celsius is for holding purposes,. At 120 degrees Celsius, the flux coating does not experience any significant heat impact, which can't potentially lead to flux damage, baking requires a higher range of 260-430 degrees Celsius.

Considering the above statement you can go for baking.

 

 

From: materials-welding@googlegroups.com <materials-welding@googlegroups.com> On Behalf Of Vishwas Keskar
Sent: Monday, May 22, 2023 6:45 AM
To: materials-welding@googlegroups.com
Subject: Re: [MW:34217] Low Hydrogen Electrods

 

The question is not clear 

Pl elaborate the query

Sent from my iPhone

On 22-May-2023, at 8:40 AM, Mahmood Al-Hinai <hyna4444@gmail.com> wrote:



Dear all experts,

 

If Low Hydrogen Electrods kept directly in a holding oven without backing, and later on it was observed, so how to rectify?

Shall be scraped or backed?

 

 

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