[MW:32432] Allowable retubing in boiler as per IBR

Dear All,

Request to guide on how many times retubing is allowed in waste heat reboiler. We are currently doing it 3rd time in one of our reboiler.

Any IBR Code reference regarding this?

Regards

Devang Majithia

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Re: [MW:32432] Welding after PWHT and Hydrotest

Pl read PW 54 in detail.

On Sat, 26 Jun 2021, 16:07 Manish Kumar, <mkmkr431@gmail.com> wrote:

Dear Sir,

As per ASME section 1, What Can be allowed Welding on weld zone and shell of vessel after Heat treatment and PWHT ?

Please advise as per ASME section 1.

Regards

Manish Kumar

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[MW:32431] Welding after PWHT and Hydrotest

Dear Sir,

As per ASME section 1, What Can be allowed Welding on weld zone and shell of vessel after Heat treatment and PWHT ?

Please advise as per ASME section 1.

Regards

Manish Kumar

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Re: [MW:32430] RE: Automatic welding machines for Pipeline Welding,

Hi Lakshmanan,

QaPQA (PWT) deals with automatic Pipeline welding. We had a project done using their welding system with pipelines of size 6" to 20" which are of watll thickness 10.49mm to 50.2mm.  Kindly search for "QAPQA" in google. 

On Sun, May 30, 2021, 8:11 PM <pgoswami@rogers.com> wrote:

Hi,

Did you look at this manufacturer's website? Some information is as attached. There may be other manufacturer's also, which may be available through web search.

 

Thanks.

 

Pradip Goswami.P.Eng, IWE.

Independent Consulting 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

 

 

Welding Machines | crc-evans.com

 

From: Lakshmanan Suresh Kumar <suresh18381@gmail.com>
Sent: May 30, 2021 1:25 AM
To: materials-welding@googlegroups.com
Subject: Automatic welding machines for Pipeline Welding

 

Gentlemen,

 

Can anyone suggest a suitable best quality automated / orbital welding machine for welding Pipeline girth Welds.

Requirements are.....

* Carbon Steel, Sour Service

* both offshore and onshore works

* open root with STT/CMT preferred

 

Thankyou

 

Regards

Suresh 

 

 

 

 

 

 

Virus-free. www.avg.com

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Re: [MW:32428] PREHEAT TEMPERATURE

No where mention the restriction on maximum preheat temp as per mention code ASME B31.3, ref 330 and 330.2,,,  and API RP 582, 8 preheat and interpass temp.  Restriction on Max interpass tem only to avoid coarse grain that too for Impact requirements

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 Sun, May 23, 2021 at 9:14 AM Manoj Mumbai <manojacgnr@gmail.com> wrote:

ASME B31.3 and RP582

On Sat, May 22, 2021 at 3:26 PM Kannayeram Gnanapandithan <kgpandithan@gmail.com> wrote:

Could you give code ref for control of preheat on maximum side

On Sat, May 22, 2021, 3:10 PM Gerry Lourens <Gerry.Lourens@newage-eng.com> wrote:

There are no limits to the Preheat temperature provided that there are no toughness requirements.

If toughness (impacts) are required :

the maximum inter-pass temperature qualified equals the maximum preheat temperature.

Best Regards,
	Gerry Lourens Welding Engineer New Age Engineering Solutions
	M: +27 62 192 1207 T:  +27 17 631 5282 F:  +27 (0)86 616 9701 E:  gerry.lourens@newage-eng.com A:  3 York Street, Evander, 2280

On Sat, May 22, 2021 at 5:49 AM Manoj Mumbai <manojacgnr@gmail.com> wrote:

Dear Experts,

The preheat temperature shall not be less than 55 deg. C as per QW-406.1 but  not specified a maximum how much it can be from the temperature noted in PQR as preheat temperature is minimum temperature and interpass temperature is the maximum temperature.

My question , Is there any limitation to increase preheat temperature than mentioned in PQR. suppose PQR temperature is Ambient, say 38 deg. C, can we increase preheat temperature to 204 deg. C.  I have a qualified procedure of P6 material at ambient temperature 38 deg.C now I have to include preheat temperature.

Thanks in advance for your expert opinion.

Manoj.

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Re: [MW:32428] Regarding Impact testing for pipe supports.

According to ASME B31.3, permanent support material shall be suitable for service as per below snap shot.

It depends on the number of Supports installed to have a thorough check, if it is few in Number Then you can perform a PMI or chemical analysis by collecting chippings on the support material and check for Nickel.

S275JR do not contain Nickel whereas A333 Gr,6 contains max 0.4% Nickel.

Another method is metallography but it is expensive as you need to hire an external consultant.

WEld is not a problem as you have welded using E8018C3 (with 0.8 - 1.2 % Nickel) suitable for the service.

Thanks & Regards

J.Gerald Jayakumar

On Wednesday, 23 June, 2021, 10:42:54 am IST, mohit aggarwal <aggarwalmoh@gmail.com> wrote:

Hi Experts, 

Hope you are doing well!

We have one problem arises on construction site of material mix-up without any physical traceability i.e. In LTCS line some pipe supports welded of CS material SPS-F-8001 or Structural Material S275 JR but welding done with LTCS 8018-C3 consumable.

Line service is Pressurized LPG with MDMT -45 deg C. material of pipe-SA333 Gr6.

My query is how this can be sort out as client raise the objection of traceability.

Regards

Mohit Aggarwal.

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Re: [MW:32427] PREHEAT TEMPERATURE

Dear Manoj,

               Please also refer as mentioned in ASME SEC IX for your query.............

QW-406.3

PREHEAT

An increase of more than 55Deg C in the maximum interpass temperature recorded on the PQR. This variable does not apply when a WPS is qualified with a PWHT above the upper transformation temperature or when an austentic or P No. 10H material is solution annealed after welding.

On Sat, May 22, 2021 at 9:19 AM Manoj Mumbai <manojacgnr@gmail.com> wrote:

Dear Experts,

The preheat temperature shall not be less than 55 deg. C as per QW-406.1 but  not specified a maximum how much it can be from the temperature noted in PQR as preheat temperature is minimum temperature and interpass temperature is the maximum temperature.

My question , Is there any limitation to increase preheat temperature than mentioned in PQR. suppose PQR temperature is Ambient, say 38 deg. C, can we increase preheat temperature to 204 deg. C.  I have a qualified procedure of P6 material at ambient temperature 38 deg.C now I have to include preheat temperature.

Thanks in advance for your expert opinion.

Manoj.

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Re: [MW:32426] Regarding Impact testing for pipe supports.

Remove one support and do all physical testing .

Discuss with Clinet about this action and take concent.

On Wed, 23 Jun 2021, 11:18 mohit aggarwal, <aggarwalmoh@gmail.com> wrote:

PMI will be carried out but what about base material. Main problem is for the base material.

On Wed, Jun 23, 2021 at 9:42 AM Vishwas Keskar <vvkeskar123@gmail.com> wrote:

Carry out PMI of Weld metal.

If it is welded with E8018 C3 ,PMI will show Ni % .

Take further action as the case may be

On Wed, 23 Jun 2021, 10:36 mohit aggarwal, <aggarwalmoh@gmail.com> wrote:

Hi Experts, 

Hope you are doing well!

We have one problem arises on construction site of material mix-up without any physical traceability i.e. In LTCS line some pipe supports welded of CS material SPS-F-8001 or Structural Material S275 JR but welding done with LTCS 8018-C3 consumable.

Line service is Pressurized LPG with MDMT -45 deg C. material of pipe-SA333 Gr6.

My query is how this can be sort out as client raise the objection of traceability.

Regards

Mohit Aggarwal.

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Re: [MW:32424] Regarding Impact testing for pipe supports.

Carry out PMI of Weld metal.

If it is welded with E8018 C3 ,PMI will show Ni % .

Take further action as the case may be

On Wed, 23 Jun 2021, 10:36 mohit aggarwal, <aggarwalmoh@gmail.com> wrote:

Hi Experts, 

Hope you are doing well!

We have one problem arises on construction site of material mix-up without any physical traceability i.e. In LTCS line some pipe supports welded of CS material SPS-F-8001 or Structural Material S275 JR but welding done with LTCS 8018-C3 consumable.

Line service is Pressurized LPG with MDMT -45 deg C. material of pipe-SA333 Gr6.

My query is how this can be sort out as client raise the objection of traceability.

Regards

Mohit Aggarwal.

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Re: [MW:32422] Solid Tube Built up WPS/PQR

Dear Sir,

Thanks for your comment but my  question was for Test Coupon Size selection only not with Material, my client is not able to find 40mm plates to make Butt weld and make qualification for PQR and mechanical testing.

They want  us to Testing with Solid shaft on actual job but i m not sure this is way to do PQR specifically for ASME for Base Metal Buildup.

Thanks & Regards

Jaimin Patel

On Monday, June 7, 2021 at 7:59:55 AM UTC+3 dusroni wrote:

Mr.Jaimin Patel,

fyi,

build‐up of base metal (restoration of base metal thickness):
This is the application of a weld material to a base
metal so as to restore the design thickness and/or structural
integrity. This build‐up may be with a chemistry different
from the base metal chemistry which has been
qualified via a standard butt-welded test coupon. Also,
may be called base metal repair or buildup.

On Mon, May 10, 2021 at 6:46 AM jaimin...@gmail.com <jaimin...@gmail.com> wrote:

Dear Gents,

we have situation where client have some component like shaft/Tube Solid  of nickel Grade Material and on the surface they have some material loss.

They want to make grinding>welding>maching to restore the original configuration.

1. Applicable Code ASME SEC. IX.
2. Required welding max 5mm.
3. Shaft Dia varies From 1" to 6"

• Now as i see we can make WPS/PQR based on QW202.3.
• But I m confused on selection of Base metal thickness and Grove what we need to suggest.
• Client don't have metal sheets to make on PQR on that they have only Solid Tubes.
  
  

kindly give your value inputs on this regard's.

Thanks & Regards

Jaimin Patel
B.E Mechanical
ASNT NDT L-III(222210)
Email : jaimin...@gmail.com 
Skype : jaimin0011
WHATSAPP : +919099018587

 

Failure is simply the opportunity to begin again, this time more intelligently. Henry Ford

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Re: [MW:32421] Welding Electrode Selection Table

Thank you so much for your effort taken to write me a adequate information. I feel good and thankful Mr. Gerald. All the best. 

Best Regards,

Venkat G

On Fri, 4 Jun 2021 at 5:12 AM, 'james gerald' via Materials & Welding <materials-welding@googlegroups.com> wrote:

Thanks  Mr. Venkatachalam,

The details provided by me gives only a guideline for selecting appropriate welding consumable based on suitability and matching chemical composition.

Apart from this there are various API, NACE, NiDL, SSA, Client specification and various Technical Articles which must be considered apart from the recommendation of ASME Sec.IIC based on Application such as Refinery, Natural Gas Plants, Petrochemical plants, Fertilizer plants etc. for Equipment and piping. It is always better to consult a Welding Engineer or Welding consultant/

Thanks & Regards

J.Gerald Jayakumar

On Thursday, 3 June, 2021, 05:32:15 pm IST, Venkatachalam Govindan <vinisaa@gmail.com> wrote:

Thank you so much, dear, Gerald, for considering my request. All the best.

Venkat G.

On Thu, 3 Jun 2021 at 9:48 AM 'james gerald' via Materials & Welding <materials-welding@googlegroups.com> wrote:

Dear Mr.Venkatachalam,

Please refer to API RP 582.

Please also refer the below link.

Welding Material (specialmetalswelding.com)

Snap shot of the link below.

Thanks & Regards

J.Gerald Jayakumar

On Wednesday, 2 June, 2021, 05:55:23 pm IST, Venkatachalam Govindan <vinisaa@gmail.com> wrote:

Dear Respected Professionals, Gday.

We need a welding rod selection table, or suitable comparison table or the proper reference to select the electrode to any particular material if required. Hope our friends will help me. Thank you. All the best. 

Best Regards,

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Re: [MW:32420] Solid Tube Built up WPS/PQR

Mr.Jaimin Patel,

fyi,

build‐up of base metal (restoration of base metal thickness):
This is the application of a weld material to a base
metal so as to restore the design thickness and/or structural
integrity. This build‐up may be with a chemistry different
from the base metal chemistry which has been
qualified via a standard butt-welded test coupon. Also,
may be called base metal repair or buildup.

On Mon, May 10, 2021 at 6:46 AM jaimin...@gmail.com <jaiminthejack@gmail.com> wrote:

Dear Gents,

we have situation where client have some component like shaft/Tube Solid  of nickel Grade Material and on the surface they have some material loss.

They want to make grinding>welding>maching to restore the original configuration.

1. Applicable Code ASME SEC. IX.
2. Required welding max 5mm.
3. Shaft Dia varies From 1" to 6"

• Now as i see we can make WPS/PQR based on QW202.3.
• But I m confused on selection of Base metal thickness and Grove what we need to suggest.
• Client don't have metal sheets to make on PQR on that they have only Solid Tubes.
  
  

kindly give your value inputs on this regard's.

Thanks & Regards

Jaimin Patel
B.E Mechanical
ASNT NDT L-III(222210)
Email : jaiminthejack@gmail.com 
Skype : jaimin0011
WHATSAPP : +919099018587

 

Failure is simply the opportunity to begin again, this time more intelligently. Henry Ford

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Re: [MW:32419] Bend Test Jig / Mandrel requirements for Aluminum

Just to add,

I suppose the bend specimen dimension may be as 150mm x 3mm x 10mm

Thanks & Regards

J.Gerald Jayakumar

On Friday, 4 June, 2021, 07:42:07 am IST, 'james gerald' via Materials & Welding <materials-welding@googlegroups.com> wrote:

Dear Mr. Prem,

I suppose the thickness will be 3mm for P23 as per below snap shot.

Thanks & Regards

J.Gerald Jayakumar

On Thursday, 3 June, 2021, 05:26:49 pm IST, Prem Nautiyal <prem.nautiyal26@gmail.com> wrote:

Dear All

We need to conduct Face bend and Root bend test for AA 6061-T6,  P.No.23 as per ASME Sec IX.

Thickness of PQR test coupon is 10mm.

We have machined face bend and Root bend specimens with following dimensions  - 300mm L × 38mm wide × 10mm Thick.

Can anyone explain what will be the Test jig / Mandrel dia. as per ASME Sec IX , QW 466.1.

For eg. In steels it is 4T.

Regards

Prem Nautiyal

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Re: [MW:32415] Bend Test Jig / Mandrel requirements for Aluminum

I suggest - 

Pl. consider wrap around jig shown in Figure QW-466.3 due to less  elongation of these materials   

On Thu, Jun 3, 2021 at 5:26 PM Prem Nautiyal <prem.nautiyal26@gmail.com> wrote:

Dear All

We need to conduct Face bend and Root bend test for AA 6061-T6,  P.No.23 as per ASME Sec IX.

Thickness of PQR test coupon is 10mm.

We have machined face bend and Root bend specimens with following dimensions  - 300mm L × 38mm wide × 10mm Thick.

Can anyone explain what will be the Test jig / Mandrel dia. as per ASME Sec IX , QW 466.1.

For eg. In steels it is 4T.

Regards

Prem Nautiyal

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Re: [MW:32415] Bend Test Jig / Mandrel requirements for Aluminum

 AA 6061-T6,  P.No.23 as per ASME Sec IX.

Pl. inform  % elongation of this material .

On Thu, Jun 3, 2021 at 5:26 PM Prem Nautiyal <prem.nautiyal26@gmail.com> wrote:

Dear All

We need to conduct Face bend and Root bend test for AA 6061-T6,  P.No.23 as per ASME Sec IX.

Thickness of PQR test coupon is 10mm.

We have machined face bend and Root bend specimens with following dimensions  - 300mm L × 38mm wide × 10mm Thick.

Can anyone explain what will be the Test jig / Mandrel dia. as per ASME Sec IX , QW 466.1.

For eg. In steels it is 4T.

Regards

Prem Nautiyal

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Re: [MW:32415] Bend Test Jig / Mandrel requirements for Aluminum

Dear Mr. Prem,

I suppose the thickness will be 3mm for P23 as per below snap shot.

Thanks & Regards

J.Gerald Jayakumar

On Thursday, 3 June, 2021, 05:26:49 pm IST, Prem Nautiyal <prem.nautiyal26@gmail.com> wrote:

Dear All

We need to conduct Face bend and Root bend test for AA 6061-T6,  P.No.23 as per ASME Sec IX.

Thickness of PQR test coupon is 10mm.

We have machined face bend and Root bend specimens with following dimensions  - 300mm L × 38mm wide × 10mm Thick.

Can anyone explain what will be the Test jig / Mandrel dia. as per ASME Sec IX , QW 466.1.

For eg. In steels it is 4T.

Regards

Prem Nautiyal

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