Re: [MW:11607] CLAD MATERIALS - WELD -PWHT

[manpreet]

Hi Sundaram,

 

Trust me, this can't be explained in single mail as you are not very specific with your question.

 

I assume procedure has to be qualified with ASME sec ix as Cladding has to be carried out for API pipes.

Process:- Try Pulse GMAW, can change deposition rates significantly

 

Refer AWS A5.14 for electrode

 

To qualify a procedure for corrosion resistant weld overlay, the welder must deposit a minimum 1.5" wide X 6" long pad of weld overlay on a test coupon using the guidelines/notes in QW-453. For performance testing, the welder must deposit a minimum 1/2" wide weld overlay consisting of a minimum of 3 weld beads in the first layer. This is done to achieve the necessary dilution with the base metal. There is no limit on the maximum number of layers for the weld overlay.

Base material, Consumable (AWS classification) and position should be within the allowable limits since these are essential variables, no limit on max thk of overlay deposit. 

PWHT is not applicable if you overlaying on the pipe but if you are butt welding 2 claddel pipes with inconel, it might be applicable to PWHT considering range of thickness per Sec Viii div 1 UCS-56 (i guess you are not going with 2nd option)

 

All tests per ASME Sec ix and Client spec:-

 

Dimensional Verification, visual inspection, Dye penetrant testing per Sec viii  div 1- App 8, dilution on weld surface shall not exceed 10% of base metal, root bead chemical analysis to match Inconel composition, transverse weld hardness survey (max 35 HRC), corrosion test (sour service), micrographic (*400)- microstructure of the HAZ should be free of precipitations and intermetallic phases, Side bends

 

For volumetric examination of CRA production groove welds, radiography (RT) is generally the best choice. Ultrasonic examination (UT) of CRA production groove welds is generally ineffective because of the nature of CRA weld metal 

 

Heat affected thickness to be minimized by lower heat input and higher travel speed.

 

Account all the suggestions and let us know ur case specifically.

 

 

Regards

Manpreet Singh

From: "Sundaram Elumalai"Elumalai...@starfab.com.sa
Sent: Thu, 07 Jul 2011 18:25:41 +0530
To: material...@googlegroups.com
Subject: [MW:11607] CLAD MATERIALS - WELD -PWHT

Hi Experts,

If anyone is having experience with the following CLAD materials, please give your input during the PQR / production weld. Is the PWHT will impact the corrosion property of Clad.

Pipe	NPS:10-Thk:45mm-PIPE-API 5L GR.X65 PSL2 - SMLS -GA-E-61036	BW	3mm Inconel Cladded
Pipe	NPS:12-Thk:15.88mm-PIPE-API 5L GR.X65 PSL2 - SMLS -GA-E-61036	BW	3mm Inconel Cladded
Pipe	NPS:12-Thk:45.5mm-PIPE-API 5L GR.X65 PSL2 - SMLS -GA-E-61036	BW	3mm Inconel Cladded
Pipe	NPS:12-Thk:53.5mm-PIPE-API 5L GR.X65 PSL2 - SMLS -GA-E-61036	BW	3mm Inconel Cladded

With Kind Regards,

S.Elumalai.

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[Sundaram Elumalai]

Thanks Manpreet Singh,

 

Yes, My case is option 2. I have received the Cladded material from Owner and need to perform only BUTT welding. (Weld overlay is not my case).

 

From your answer, I understood that I need to follow the PWHT Sec VIII 1, UCS -56, but what about the Clad material property during the PWHT. ( Any corrosion impact on the Clad portion).

 

Just I have only this doubt, Clad portion will withstand the ASTM G48 test after the PWHT.

 

With Kind Regards,                                      

 

S.Elumalai.

---

[pgoswami]

Hi Sundaram,

 

A few queries on the top of what you've posted:-

• What's the design code for the pipes? API-5LD is the default code for pipes ,but are the pipes a part of the system belonging to any ASME code.
• If no ASME code is applicable then is there any client's specification for the piping.

Typically for inconel clad( hope it's 625 or 825) pipes the industry standard is to use electrodes/filler wires compatible with 625, so extra care would be required.

 

By any chance is there an option of buttering the edges with 625 filler, followed by minor PWHT of the buttered layer +HAZ , thus avoiding the PWHT of the entire joint.

 

Appreciate your response.

 

Thanks.

 

Pradip Goswami,P.Eng.IWE

Welding & Metallurgical Specialist & Consultant

Ontario,Canada.

Email-pgoswami@sympatico.ca,

pgos...@quickclic.net

 

---

From: material...@googlegroups.com [mailto:material...@googlegroups.com] On Behalf Of Sundaram Elumalai
Sent: Saturday, July 09, 2011 12:41 AM
To: material...@googlegroups.com
Subject: RE: [MW:11643] CLAD MATERIALS - WELD -PWHT

[Sundaram Elumalai]

Hi Swami,

 

Design Code is API 1104 but Client requirement is to follow the ASME code since the filler metal is not in API 1104.

 

With Kind Regards,

 

S.Elumalai.

---

From: pgoswami [mailto:pgos...@quickclic.net]
Sent: Monday, July 11, 2011 6:05 AM
To: material...@googlegroups.com
Cc: Sundaram Elumalai
Subject: RE: [MW:11643] CLAD MATERIALS - WELD -PWHT

 

Hi Sundaram,

 

A few queries on the top of what you've posted:-

• What's the design code for the pipes? API-5LD is the default code for pipes ,but are the pipes a part of the system belonging to any ASME code.

• If no ASME code is applicable then is there any client's specification for the piping. -

[rajesh patel]

Friends,

Which is the most suitable welding consumable for SS 316 Ti in SMAW and GTAW process.?

Can we use SS 316 L electrode & filler wire ? Why ?

Awaiting your prompt response.

Regards,

Rajesh B. Patel

[swarup_...@hathway.com]

Dear Rajesh bhai,

You have to use ER318 filler wire which is available with us.

Let me know your requirements.

Sent on my BlackBerry® from Vodafone

---

From: rajesh patel <rajesh...@yahoo.com>

Sender: material...@googlegroups.com

Date: Mon, 11 Jul 2011 09:03:29 -0700 (PDT)

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

ReplyTo: material...@googlegroups.com

Subject: [MW:11685] Consumable for SS 316 Ti

[james gerald]

USE ER318/E318 J.Gerald Jayakumar 00974-66902593 --- On Tue, 7/12/11, swarup_...@hathway.com <swarup_...@hathway.com> wrote:

[Bas Westerbeek]

You can use ER318 butt without stabilized annealing, otherwise you will get sigma phase due the higher carbon content!

[Sundaram Elumalai]

Hi experts,

 

We have the following Clad Pipe and we are preparing WPS /PQR to weld this SPOOL. As I know we need to use ERNiCrMo3 / E NiCrMo 3 ( if GTAW+SMAW) to Complete weld. But if any one is having experience with this, please advice whether we will go with

 

GTAW -  ER NiCrMo3  ( First four Passes- R/H/F1/F2)

SMAW – E7018-1  ( Balance Filling /Capping).

 

We have Pitting corrosion test as per ASTM G48 at 50 degree.

 

Pipe	NPS:10-Thk:45mm-PIPE-API 5L GR.X65 PSL2 - SMLS -GA-E-61036	BW	3mm Inconel Cladded
Pipe	NPS:12-Thk:15.88mm-PIPE-API 5L GR.X65 PSL2 - SMLS -GA-E-61036	BW	3mm Inconel Cladded
Pipe	NPS:12-Thk:45.5mm-PIPE-API 5L GR.X65 PSL2 - SMLS -GA-E-61036	BW	3mm Inconel Cladded
Pipe	NPS:12-Thk:53.5mm-PIPE-API 5L GR.X65 PSL2 - SMLS -GA-E-61036	BW	3mm Inconel Cladded

 

 

 

With Kind Regards,

 

S.Elumalai.

[pgoswami]

Hello Sundaram,

 

Would you be able attach a sketch of the weld joint indicating the sequences of  sequences of welding.

 

Thanks.

 

Pradip Goswami,P.Eng.IWE

Welding & Metallurgical Specialist & Consultant

Ontario,Canada.

Email-pgoswami@sympatico.ca,

pgos...@quickclic.net

 

From: material...@googlegroups.com [mailto:material...@googlegroups.com] On Behalf Of Sundaram Elumalai

Sent: Saturday, October 15, 2011 8:53 AM
To: material...@googlegroups.com
Subject: [MW:12682] CLAD MATERIALS -WELDING

[Sundaram Elumalai]

Hi Pradip,

 

 

 

With Kind Regards,

 

S.Elumalai.

---

From: pgoswami [mailto:pgos...@quickclic.net]

Sent: Sunday, October 16, 2011 3:51 PM
To: material...@googlegroups.com
Cc: Sundaram Elumalai

[sevak hiren]

I think the welding to be done in foll.manner.    first of all grind/flush the clad material up to the surface of the 5L grade pipe...prepare the ends of the 5L pipes to be welded together,root,fill by suitable electrode up to the basepipe thickness....flush the uper surface of the welding.....then prepare the ends of the clad material and then overlay welding by suitable electrode......... 

--

[Raghuram Bathula]

you can weld with E7018 on backing material and clad restoration only when you have access from inside, otherwise you need to weld with Ni based filler completely.

[Prabhu kumar Loganathan]

Dear Elumalai,

For inconel clad pipe welding (no access from inside) must be completed with inconel E/ERNiCrMo-3 filler material.

 

CS filler materials shall not directly welded on inconel base/ weld metal in order to avoid dilution which will end up with micro cracks on fusion line. This is due to CS electrodes which is basically without addition of alloying elements, while welding the weld pool tends to pick up more alloying elements from inconel base or weld metal (% of dilution is very high around 60%) which is martensitic structure (susceptible microstructure) and more prone to cracking problem. However, on the other hand if we use inconel filler on CS, the % of dilution will be minimized and the final microstructure at fusion line is not in martensitic and hence it is recommended to use only inconel filler metals. Attached herewith some articles on inconel clad pipe welding and bevel preparation for clad portion of welding.

 

The following alternate filler metals can be proposed and qualified.

 

Option 1: Complete weld with inconel filler (ER/ENiCrMo-3)

Option 2: Root and second pass with ERNiCrMo-3 and rest by ENiCrFe-3

Option 3: Root and second pass with ERNiCrMo-3 and rest by E310 (super austenitic)

 

Your proposal is not acceptable. However, the following can be proposed and qualified with risk.

 

Root and second pass with ERNiCrMo-3 and next pass with pure iron electrodes and rest of the passes with E7018 or any CS electrodes. Till now there is no proven record for this case since control on weld pool and using pure iron electrodes requires high skill and even though it cannot be assured sound weld on all pipe joints.

 

Let me know your feedback.

 

Regards,

 

L. Prabhu kumar.

From: Sundaram Elumalai <Elumalai...@starfab.com.sa>
Sent: Mon, 17 Oct 2011 17:23:44
To: <material...@googlegroups.com>
Subject: [MW:12682] CLAD MATERIALS -WELDING

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The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.

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[Prasad Ghanekar]

As proposed by L. Prabhu Kumar i.e. using pure iron electrode, this is specified in one of the reputed Indian PMC specifications.

We have already qualified welding procedure for crude pipline but it is for SS 410S material.

 

Regards

 

Prasad

[Rajagopal Kannan]

Dear Elumalai,

On the top of Nickel based electrodes, E 7018-1 will not get bonding. Tensile value of  X - 65 pipe is greater than E7018-1. So you have to go for complete weld with E Ni Cr Mo3.

Thanks and Best Regards,

K.Rajagopal

--

[Sundaram Elumalai]

Thanks Mr.Raja and we are going with full ER Ni CrMo-3.

 

With Kind Regards,

 

S.Elumalai.

---

[manpreet]

Hi,

Try GMAW welding completely with ERNi CrMo-3, will also improve production, please find below few things to consider:-

* Min. of 2 layers

* Production weld overlay shall have chemical composition checked using PMI (X-ray fluorescence) method or by physical sample.

*Dilution of welded surfaces shall not exceed 10% of base metal

*Hardness testing after final machining shall be lesser than 248HV10.

*Side bend acc. to ASME sec ix

*Micrographic examination (*400)  

*100% PT testing

Regards

Manpreet Singh 

From: Raghuram Bathula <raghura...@gmail.com>
Sent: Tue, 18 Oct 2011 15:14:10
To: material...@googlegroups.com

Subject: Re: [MW:12696] CLAD MATERIALS -WELDING
you can weld with E7018 on backing material and clad restoration only when you have access from inside, otherwise you need to weld with Ni based filler completely.

On Sun, Oct 16, 2011 at 10:05 PM, sevak hiren <hirens...@gmail.com> wrote:

I think the welding to be done in foll.manner.ࠠ first of all grind/flush the clad material up to the surface of the 5L grade pipe...prepare the ends of the 5L pipes to be welded together,root,fill by suitable electrode up to the basepipe thickness....flush the uper surface of the welding.....then prepare the ends of the clad material and then overlay welding by suitable electrode.........࠼/p>

On Oct 16, 2011 3:50 PM, "Sundaram Elumalai" <Elumalai...@starfab.com.sa> wrote:

Hi experts,

༯span>

We have the following Clad Pipe and we are preparing WPS /PQR to weld this SPOOL. As I know we need to use ERNiCrMo3 / E NiCrMo 3 ( if GTAW+SMAW) to Complete weld. But if any one is having experience with this, please advice whether we will go with

༯span>

GTAW -ࠅR NiCrMo3 ਠFirst four Passes- R/H/F1/F2)

SMAW E7018-1 ਠBalance Filling /Capping).

༯span>

We have Pitting corrosion test as per ASTM G48 at 50 degree.

༯span>

Pipe	NPS:10-Thk:45mm-PIPE-API 5L GR.X65 PSL2 - SMLS -GA-E-61036	BW	3mm Inconel Cladded
Pipe	NPS:12-Thk:15.88mm-PIPE-API 5L GR.X65 PSL2 - SMLS -GA-E-61036	BW	3mm Inconel Cladded
Pipe	NPS:12-Thk:45.5mm-PIPE-API 5L GR.X65 PSL2 - SMLS -GA-E-61036	BW	3mm Inconel Cladded
Pipe	NPS:12-Thk:53.5mm-PIPE-API 5L GR.X65 PSL2 - SMLS -GA-E-61036	BW	3mm Inconel Cladded

༯span>

༯span>

༯span>

With Kind Regards,

༯span>

S.Elumalai.

--
To post to this group, send email to material...@googlegroups.com
To unsubscribe from this group, send email to materials-weld...@googlegroups.com
For more options, visit this group's bolg at http://materials-welding.blogspot.com/
The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.