Monday, August 31, 2015

Re: [MW:23375] PWHT requirement for vessel

I agree

Sent from my BlackBerry 10 smartphone.
From: Shadab Ansari
Sent: Δευτέρα, 31 Αυγούστου 2015 - 20:58
To: materials-welding@googlegroups.com
Reply To: materials-welding@googlegroups.com
Subject: Re: [MW:23374] PWHT requirement for vessel

No. Since its a non-pressure part.

On Aug 29, 2015 5:04 PM, "Prasad" <prsgne@gmail.com> wrote:
Construction Code ASME Sec. VIII Div. 1 Edn. 2013
Non pressure Part skirt support
of vertical vessel not welded directly to vessel.
MOC IS 2062 P no.1 Group  1
Thk. 40 mm
No special service requirement.

For this case whether PWHT is mandatory?

Regards,
Prasad G.

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Re: [MW:23374] PWHT requirement for vessel

No. Since its a non-pressure part.

On Aug 29, 2015 5:04 PM, "Prasad" <prsgne@gmail.com> wrote:
Construction Code ASME Sec. VIII Div. 1 Edn. 2013
Non pressure Part skirt support
of vertical vessel not welded directly to vessel.
MOC IS 2062 P no.1 Group  1
Thk. 40 mm
No special service requirement.

For this case whether PWHT is mandatory?

Regards,
Prasad G.

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Re: [MW:23373] PWHT requirement for vessel

vessel subject to pwht then weld prior n do pwht.

bcse any way skirt going to weld with pad which directly weld with vessels.

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Re: [MW:23372] Orbital Tug welding in Cu Ni.

Hi

You can get the parameters from the technical person of either your welding consumable supplier or machine supplier. 

Regards

Prem Nautiyal



Sent from Samsung Mobile


-------- Original message --------
From: Nazz A
Date:31/08/2015 10:46 AM (GMT+05:30)
To: Materials & Welding
Subject: [MW:23371] Orbital Tug welding in Cu Ni.

Anybody did the Otbital tig welding by Polysoude machine. Now we are using an orbital machine for welding of Cu Ni pipes.

Please tell the good parameters of root welding.

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Re: [MW:23370] API 510 Pressure vessel inspector Course information

Dear,

API 510 is for inservice pressure vessel inspector.
preparatory course training for API 510 is available in pune, chennai, hyderabad etc... for 20-30 K INR.
API 510 Exam fees 900 US Dollars schedule for 15 jan 2016 , 13 may 2016 and  16 sep 2016, 

Apply through this below link.




On Sun, Aug 30, 2015 at 7:00 PM, Chetan <patilvicky4@gmail.com> wrote:
Dear all,

Please give me brief information about API 510 course about exam pattern, fees & code book requirement.
Also suggest training institute in India.

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Thanks and Regards, ?

Mohammed Ghani,

CSWIP 3.1 / BGAS L-2 / ISO 9001:2008 QMS LA.

Mechanical Inspector,
BUREAU VERITAS.


ü
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 "Be the change you wish to see in the world"

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[MW:23371] Orbital Tug welding in Cu Ni.

Anybody did the Otbital tig welding by Polysoude machine. Now we are using an orbital machine for welding of Cu Ni pipes.

Please tell the good parameters of root welding.

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Re: [MW:23369] PWHT requirement for vessel

What is the base/code backup for your reply? Please let us know so that we can read it.

On Sunday, 30 August 2015 12:13:51 UTC+5:30, gerr...@yahoo.com wrote:
In this case, PWHT is not required, provided

1. minimum applied Preheat is 95degC
 2. Size of the Groove weld is less than 13mm

Thanks & Regards
J.Gerald Jayakumar
0091-9344954677


From: Prasad <prs...@gmail.com>
To: Materials & Welding <material...@googlegroups.com>
Sent: Saturday, August 29, 2015 7:13 PM
Subject: [MW:23361] PWHT requirement for vessel

Construction Code ASME Sec. VIII Div. 1 Edn. 2013
Non pressure Part skirt support
of vertical vessel not welded directly to vessel.
MOC IS 2062 P no.1 Group  1
Thk. 40 mm
No special service requirement.

For this case whether PWHT is mandatory?

Regards,
Prasad G.

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Sunday, August 30, 2015

[MW:23368] API 510 Pressure vessel inspector Course information

Dear all,

Please give me brief information about API 510 course about exam pattern, fees & code book requirement.
Also suggest training institute in India.

Re: [MW:23367] QW 200.4(b) - Combing two PQRs

Hi,

You cannot combine these two PQRs for your job, please click the below link to see earlier discussions in this group for cladded pipe/vessel butt weld joints.


regards,


LALU


On Sun, Aug 30, 2015 at 11:00 AM, Dhamodaran <dhamurocksu@gmail.com> wrote:

Dear All,

pls. go through the below scenario and provide your feed backs.


thanks.

Job Details : -

 

1.       Material               :               SA516 Gr.70N + UNS N 08825. ( 40+3 mm)

2.       PWHT                    :               Yes

3.       Impact                  :               Not required

4.       Vessel Size          :               ID-910 mm ; TL to TL -2000 mm

5.       Opening size      :               6"

6.       Overlay welding is for corrosion resistance only. Not considered in design thickness.

 

Background  : Since there is no accessibility to do the overlay welding on closing Circ seam (Cat – b). So I have to include the clad thickness in the butt joint. I.e ( 5-6 mm GTAW root with ER NICrMo-3 & Rest with SAW EM12K)



Query : I have two PQR as below mentioned, Can I combine both PQR to do the above butt welding?

 

PQR 1 :-

1.       Material               :               SA 516 Gr.70 + UNS N 08825 TO SA 516 Gr.70 + UNS N 08825 

2.       Thk                      :               13 + 3 mm

3.       Process                :               GTAW

4.       Consumable      :               ER NiCrMo – 3 (F – 43)

5.       PWHT                    :               Yes.

 

PQR 2 :-

1.       Material               :               SA 516 Gr.70N TO SA 516 Gr.70

2.       Thk                         :               38 mm

3.       Process                :               SAW

4.       Consumable       :               EM12K (F – 6)

5.       PWHT                    :               Yes.



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Re: [MW:23366] QW 200.4(b) - Combing two PQRs // SA516 Gr.70N + UNS N 08825. ( 40+3 mm) // closing seam

Are you sure of your consumable selection?

On 30 August 2015 at 11:00, Dhamodaran <dhamurocksu@gmail.com> wrote:

Dear All,

pls. go through the below scenario and provide your feed backs.


thanks.

Job Details : -

 

1.       Material               :               SA516 Gr.70N + UNS N 08825. ( 40+3 mm)

2.       PWHT                    :               Yes

3.       Impact                  :               Not required

4.       Vessel Size          :               ID-910 mm ; TL to TL -2000 mm

5.       Opening size      :               6"

6.       Overlay welding is for corrosion resistance only. Not considered in design thickness.

 

Background  : Since there is no accessibility to do the overlay welding on closing Circ seam (Cat – b). So I have to include the clad thickness in the butt joint. I.e ( 5-6 mm GTAW root with ER NICrMo-3 & Rest with SAW EM12K)



Query : I have two PQR as below mentioned, Can I combine both PQR to do the above butt welding?

 

PQR 1 :-

1.       Material               :               SA 516 Gr.70 + UNS N 08825 TO SA 516 Gr.70 + UNS N 08825 

2.       Thk                      :               13 + 3 mm

3.       Process                :               GTAW

4.       Consumable      :               ER NiCrMo – 3 (F – 43)

5.       PWHT                    :               Yes.

 

PQR 2 :-

1.       Material               :               SA 516 Gr.70N TO SA 516 Gr.70

2.       Thk                         :               38 mm

3.       Process                :               SAW

4.       Consumable       :               EM12K (F – 6)

5.       PWHT                    :               Yes.



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[MW:23365] QW 200.4(b) - Combing two PQRs

Dear All,

pls. go through the below scenario and provide your feed backs.


thanks.

Job Details : -

 

1.       Material               :               SA516 Gr.70N + UNS N 08825. ( 40+3 mm)

2.       PWHT                    :               Yes

3.       Impact                  :               Not required

4.       Vessel Size          :               ID-910 mm ; TL to TL -2000 mm

5.       Opening size      :               6"

6.       Overlay welding is for corrosion resistance only. Not considered in design thickness.

 

Background  : Since there is no accessibility to do the overlay welding on closing Circ seam (Cat – b). So I have to include the clad thickness in the butt joint. I.e ( 5-6 mm GTAW root with ER NICrMo-3 & Rest with SAW EM12K)



Query : I have two PQR as below mentioned, Can I combine both PQR to do the above butt welding?

 

PQR 1 :-

1.       Material               :               SA 516 Gr.70 + UNS N 08825 TO SA 516 Gr.70 + UNS N 08825 

2.       Thk                      :               13 + 3 mm

3.       Process                :               GTAW

4.       Consumable      :               ER NiCrMo – 3 (F – 43)

5.       PWHT                    :               Yes.

 

PQR 2 :-

1.       Material               :               SA 516 Gr.70N TO SA 516 Gr.70

2.       Thk                         :               38 mm

3.       Process                :               SAW

4.       Consumable       :               EM12K (F – 6)

5.       PWHT                    :               Yes.



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Re: [MW:23364] PWHT requirement for vessel

In this case, PWHT is not required, provided

1. minimum applied Preheat is 95degC
 2. Size of the Groove weld is less than 13mm

Thanks & Regards
J.Gerald Jayakumar
0091-9344954677


From: Prasad <prsgne@gmail.com>
To: Materials & Welding <materials-welding@googlegroups.com>
Sent: Saturday, August 29, 2015 7:13 PM
Subject: [MW:23361] PWHT requirement for vessel

Construction Code ASME Sec. VIII Div. 1 Edn. 2013
Non pressure Part skirt support
of vertical vessel not welded directly to vessel.
MOC IS 2062 P no.1 Group  1
Thk. 40 mm
No special service requirement.

For this case whether PWHT is mandatory?

Regards,
Prasad G.

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Fwd: Re: [MW:23363] Pinhole in ESSC

Sir,
I am using 30 mm width strip without magnetic stearing arrengement.Flux is EST236 and parameters are:
Current-600A
Voltage-25V
Speed-180 mm/min
Stick out-30 mm.

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Saturday, August 29, 2015

Re: [MW:23362] wps & pqr for T,K,Y joints

Dear Mr. Sujeet Sangle,

I have a 6gr WPS as per AWS D1.1 tested as per figure 4.29, Now I have to prepare the bevel angles and weld geometry for production tky joints. Would you mind guiding me how to go about it.
Thanks



On Thursday, August 27, 2009 at 12:56:53 PM UTC+8, Sujeet Sangle wrote:
Dear Prashant ,
 
Need to Qualify the PQR as per AWS D 1:1 in 6GR position for the TKY joint and to confirm it covers your max. and min Dihedral direction plus the mock up pieces .
 
You ned to conduct the Mock up pieces which will cover your Dihedral angle as covered in 4.12.4 section of AWs D 1:1 .
 
Let me know if any more details are required ,
 
Regards,
 
sujeet Sangle

 
On Wed, Aug 26, 2009 at 11:17 PM, prashant pansare <prashan...@yahoo.co.in> wrote:
Dear all.
I' ve to fabricate platform as per API RP 2A.
Shall I qualify 6GR for T,K,Y joints? or shall I go for min & max. dihedral angle & min & max. root gap qualification.
psp  


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[MW:23361] PWHT requirement for vessel

Construction Code ASME Sec. VIII Div. 1 Edn. 2013
Non pressure Part skirt support
of vertical vessel not welded directly to vessel.
MOC IS 2062 P no.1 Group 1
Thk. 40 mm
No special service requirement.

For this case whether PWHT is mandatory?

Regards,
Prasad G.

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Thursday, August 27, 2015

[MW:23360] Re: Carbon pick-up in stainless steels

this is a diffusive problem, diffusion depends mainly on time and temperature CO2 from combustion is relatively stable at the temperatures in your furnace so it is more difficult to diffuse carbon in the steel.

You can measure indeed through chemical analysis if some carbon was pick up during reheating.

Sergio Muñoz
IWE-IIW
http://weld-ing.blogspot.com

On Tuesday, August 11, 2015 at 10:35:08 PM UTC-5, BM wrote:
A manufacturer of stainless steel pipes uses coal gas in reheating furnace to heat SS billets before the piercing operation. The coal gas is generated by combustion of coal in a hearth before the reheating furnace and 'simply filtered' before entry for combustion in the reheating furnace.

Is there any possibility of carbon pick-up in the billet due to the gas and other carried over products of combustion like tars etc, especially if the billet is of low carbon type?

Thanks in advance for your responses.

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RE: [MW:23359] Grade of MATERIAL

Dear Ali

 

I understand:

·        that you have a welding procedure qualified on X52 and you want to apply it to X60 material,

·        you are working to AWS D1.1 and because they are in separate material groups you cannot do it and be code compliant.

 

You need to apply to your client for a concession. The grounds for that would be that the material you want to weld is of equivalent weldability to the material qualified in the procedure. You need to look at the chemical analysis and the IIW carbon equivalent and show that they are broadly equivalent.

 

Good luck with this.

 

Best wishes

 

Alan

 

Alan Denney                                                                                                                              

AKD Materials Consulting Ltd

 

 

-----Original Message-----
From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Ali Asghari
Sent: 26 August 2015 19:48
To: Materials & Welding <materials-welding@googlegroups.com>
Subject: Re: [MW:23352] Grade of MATERIAL

 

Dear Alan and Meisam

Thank you for your responses.

In API 5L chemical analysis of X60 and X 52 even X65 are very similar especially in carbon equivalent and because this material want to be used in structure dosen't matter PSL1 or 2.

Original certificate issued for X60.

But i don't understand why standard defines these grades that don't differ much and with regard to in designing step usually you choose higher grade to decrease thickness,but in this case there isn't any benefit.

Additionally in AWsD1.1 X52 in group2 and X60 in group 3 and we have approved wps for group2.

Is it possible that contractor use from API 5L and designate this material to X52?

Regards 

 

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Fwd: Re: [MW:23358] Pinhole in ESSC



-------- Original message --------
From: Pradip Goswami <pradip.goswami@gmail.com>
Date: 2015-08-26 23:50 (GMT-07:00)
To: Mr Pradip Goswami <pgoswami@quickclic.net>
Subject: Fwd: Re: [MW:23332] Pinhole in ESSC



Hi ABHISHEK,

ESSC fluxes are high integrity fluxes.Occurrences of defects would not be very common.Pinhole may occur due multiple reasons
What's the Strip+Flux combination being used and welding parameters being used.What's the magnetic stirring parameters, recommended by the consumable flux manufactures. Nickel based alloys are intolerant to surface contaminants. I hope cleaning of the surfaces are done properly.

Appreciate your responses.

Thanks.

P.Goswami, P.Eng, IWE.



On 22 Aug 2015 23:29, ABHISHEK SINGH wrote:
Dear Experts
     We are facing pinhole problem in Inconel(EQNiCrMo-3) ESSC.What
is the reason of pinhole in ESSC??

Re: [MW:23357] Welding consumables (2.25Cr-1Mo-0.25V) with guaranteed stress rupture strength

Hi,
Your  query  is too general. What's the design code ,design  specifications  and intended applications ? To the best of my knowledge,  these steels  are used  for hydroprocessing equipments. 
Appreciate your response with more details.

Thanks. 

P.Goswami. 


-------- Original message --------
From: "S.Mohammed" <mohd52100@gmail.com>
Date: 2015-08-26 20:54 (GMT-07:00)
To: Materials & Welding <materials-welding@googlegroups.com>
Subject: [MW:23352] Welding consumables (2.25Cr-1Mo-0.25V) with guaranteed stress rupture strength

Expert opinion needed.

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Re: [MW:23356] Minimum diameter to allow the required nos of tes

Dear Pradip,

For Welder Performance qualification test, Diameter qualification refer QW-452.3 & QW-452.4

Thickness limits refer QW-452.1(a) & QW-452.1(b)
 
Thanks & Best Regards,
Sujin. J


From: 'Karthik' via Materials & Welding <materials-welding@googlegroups.com>
To: "materials-welding@googlegroups.com" <materials-welding@googlegroups.com>
Sent: Thursday, August 27, 2015 8:15 AM
Subject: Re: [MW:23355] Minimum diameter to allow the required nos of tes

Hi,
Please refer QW302.2 = ASME Section IX
 
Thanks & Regards,

(Karthik)





On Thursday, August 27, 2015 11:10 AM, pradip kumar Sil <pradipsil@gmail.com> wrote:


Dear All,
 For small bore welder test ,Minimum diameter to allow the required nos of test coupon.
Where in Sec IX is stated how much circumference to cover to weld for small bore ( Example 1/2 ") for welder qualification.
Regards
Pradip 
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Re: [MW:23355] Minimum diameter to allow the required nos of tes

Hi,
Please refer QW302.2 = ASME Section IX
 
Thanks & Regards,

(Karthik)





On Thursday, August 27, 2015 11:10 AM, pradip kumar Sil <pradipsil@gmail.com> wrote:


Dear All,
 For small bore welder test ,Minimum diameter to allow the required nos of test coupon.
Where in Sec IX is stated how much circumference to cover to weld for small bore ( Example 1/2 ") for welder qualification.
Regards
Pradip 
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[MW:23354] Minimum diameter to allow the required nos of tes

Dear All,
 For small bore welder test ,Minimum diameter to allow the required nos of test coupon.
Where in Sec IX is stated how much circumference to cover to weld for small bore ( Example 1/2 ") for welder qualification.
Regards
Pradip 

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[MW:23352] Welding consumables (2.25Cr-1Mo-0.25V) with guaranteed stress rupture strength

Expert opinion needed.

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Re: [MW:23352] Grade of MATERIAL

Dear Alan and Meisam
Thank you for your responses.
In API 5L chemical analysis of X60 and X 52 even X65 are very similar especially in carbon equivalent and because this material want to be used in structure dosen't matter PSL1 or 2.
Original certificate issued for X60.
But i don't understand why standard defines these grades that don't differ much and with regard to in designing step usually you choose higher grade to decrease thickness,but in this case there isn't any benefit.
Additionally in AWsD1.1 X52 in group2 and X60 in group 3 and we have approved wps for group2.
Is it possible that contractor use from API 5L and designate this material to X52?
Regards

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Wednesday, August 26, 2015

[MW:23351] Sscc test

Dear All.
If the test is done, according to ASTM G39, or NACE TM0177 bending method.
1.what is different between results of these standards?
2.how the amount of stress is specified?because we have a same material that tested in two different labs,one of that tested with 72%  yield and another with 90% ?
Regards.

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[MW:23350] National Welding Seminar (NWS - 2015) - Call for Technical Papers

Greetings from The Indian Institute Of Welding.
 
We are sure you must be aware about the National Welding Seminar (NWS - 2015) and concurrent WELD INDIA EXHIBITION going to be held in Vashi, Navi Mumbai, India in the state of the Art CIDCO Exhibition Centre, from 9th to 12th December, 2015.
 

Call for Technical Papers 
We invite welding professionals, scientists, researchers and academicians to present technical papers on the theme-related subjects at this seminar.

Topics Covered

• Welding Metallurgy and Weldability Analysis of Ferrous &
Non-Ferrous Materials
• Welding Systems and Equipment
• Welding Automation and Robotics
• Advanced Welding and Cutting Processes
• Welding Consumables and Procedures for New Materials
• Design & Manufacture of Welded Structures
• Inspection, Testing, Quality Control & Quality Assurance
• Computer Aided Welding Engineering
• Mathematical Modelling and Simulation in Welding
• Properties of Welded Joints
• Residual Stresses and Distortion
• Repair and Maintenance Welding
• Residual Life Estimation & Surface Engineering
• Human Resource Development in Welding
• Safety, Cost and Economics of Welding
• Application of Welding - Case Histories



We request the good personal support from you by registering as Delegate for the NWS and participating in the Exhibition and papers for the seminar.  

This is an  International Event wherein we expect active participation of International foreign delegates as well and only together we can make this event successful.
 
Thanking You,

THE INDIAN INSTITUTE OF WELDING,
MUMBAI BRANCH
B-101, Hill View Apartment,
Opp. Western India Paper & Board Mills,
L. B. Shastri Marg, Vikhroli-400 083, Mumbai.

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[MW:34820] RE: 34813] Clarification in Rate of heating and cooling.

Hello,   Please see the response below.   Regards.   P. Goswami, P. Eng, IWE.   From: materials-welding@googlegroups.com <materials-weld...