Limits of E6013 in pressure vessel (sec viii div 1)

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Prasad Rode

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Nov 30, 2016, 4:56:13 AM11/30/16
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Dear sir,

In fabrication of pressure vessel from 10mm thk plate, would we allow to use E6013 electrode.

Is any where given in code of sec viii div 1, about limits of E6013, or only E7018 is allow.

Regards
Prasad Rode

prem_nautiyal26

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Nov 30, 2016, 5:50:23 AM11/30/16
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What is the base material grade ?

Regards

Prem Nautiyal 




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Kannayeram Gnanapandithan

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Nov 30, 2016, 5:50:23 AM11/30/16
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what is material specification

THANKS & BEST REGARDS,
KG.PANDITHAN, IWE,  AWS-CWI, CSWIP 3.1,
CONSULTANT-WELDING & QUALITY
Mobile no: +919940739349

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Dear sir,

In fabrication of pressure vessel from 10mm thk plate, would we allow to use E6013 electrode.

Is any where given in code of sec viii div 1, about limits of E6013, or only E7018 is allow.

Regards
Prasad Rode

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TDK YOKESH

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Nov 30, 2016, 5:50:23 AM11/30/16
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E7018 (basic electrode ) is recommended as it satisfies the mechanical properties than E6013 . If the joint is not going to experience any mechanical load nor and NDT you can go for it . I am not sure if code says about the electrode to be used .


dilintas

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Nov 30, 2016, 6:25:42 AM11/30/16
to Meghanadh K
The Asme Code is not a hand book, so you will no find any restrictions in Section VIII-1.
However the Code says that you have to match the properties of the base metal



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-------- Original message --------
From: Prasad Rode <puro...@gmail.com>
Date: 30/11/2016 09:52 (GMT+02:00)
To: Materials & Welding <material...@googlegroups.com>
Subject: [MW:25779] Limits of E6013 in pressure vessel (sec viii div 1)

Dear sir,

In fabrication of pressure vessel from 10mm thk plate, would we allow to use E6013 electrode.

Is any where given in code of sec viii div 1, about limits of E6013, or only E7018 is allow.

Regards
Prasad Rode

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Lakshman Kumar B

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Nov 30, 2016, 6:58:14 AM11/30/16
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Hi,

It is either 6013 or 7018 - whatever it may be, you have to establish a WPS and then qualify the PQR -

If all the particulars (mechanical, chemical and etc.) are complying to the specifications and to client requirements in the established PQR - then there will not be any issue of using any consumable.

Or...

If your client specification has called for any specific requirement of the electrode (say E 7018) then u have to qualify the PQR with that only.

Or...

If you have any constrain in using any electrode (practical problem, approach, easiness in welding, weld metal deposition rates, any power source limitations, any specific NDT requirement and many more particulars) then also, you may opt for 7018 or any other grade to suit requirement -

But in and overall - you have to qualify the PQR with all the variables...

Hope u understand...

Thanks & Regards,
Lakshman Kumar B,
Project Manager.

Navayuga Engineering Company LTD
Corp Off: Plot no 379, Road No 10,
Jubileehills, Hyderabad.500033 India.
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-----Original Message-----
From: material...@googlegroups.com [mailto:material...@googlegroups.com] On Behalf Of Prasad Rode
Sent: Wednesday, November 30, 2016 1:23 PM
To: Materials & Welding <material...@googlegroups.com>
Subject: [MW:25779] Limits of E6013 in pressure vessel (sec viii div 1)

Himan Nikdin

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Nov 30, 2016, 6:59:28 AM11/30/16
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What is the base material of pressure vessel?

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ECHARU

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Nov 30, 2016, 10:44:54 PM11/30/16
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If the ultimate design strength is within 60ksi you can use it. Normally in structural welding using root and hot with 6013 and others with 7018. No code saying don't use such matters. Like don't use 6013 or should use only 7018 except particular company standard.

Wth regards
Maharaja Elavarasan
Welding inspector
Cswip 3.1
ASNT LEVEL II ( PT, MT, RT, UT, VT, RTFI)
Internal auditor iso 9001:2008

From: TDK YOKESH
Sent: ‎30-‎11-‎2016 13:50
To: material...@googlegroups.com
Subject: Re: [MW:25780] Limits of E6013 in pressure vessel (sec viii div 1)

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pgoswami

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Nov 30, 2016, 11:46:53 PM11/30/16
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ASME Code does not say explicitly on the use of Non-Low Hydrogen electrodes, e.g. 6013. However good engineering practice always prevails in addition to ASME Code requirements.

 

Knowing the facts that “diffusible hydrogen” is the root cause of many damages, e.g. hydrogen induced fabrication damages as well service induced hydrogen damages, it is not advisable to use 6013 electrodes for vessels exposed to internal pressures and any process environment as a good practice.

 

However for atmospheric vessels (with no or very minimal internal pressure) use of 6013 electrodes may be allowed subject to satisfaction of the clients and other parties concerned, though at the first instances, staying away from E-6013 would be advisable.

 

A change from E-7018 to E-6013 would not have much financial savings knowing the facts that electrode consumption are typically 2-3% of equipment weights (rule of thumbs).

 

Below are some of extracts from Sec VIII, DIV-I codes on use of low hydrogen electrodes.

 

Thanks.

 

 

Pradip Goswami, P.Eng,IWE

Welding & Metallurgical Engineering Specialist ,

Ontario,Canada.
ca.linkedin.com/pub/pradip-goswami/5/985/299

pgos...@quickclic.net

pradip....@gmail.com

H-905-6799677, 905-9631505

C-905-9793232

 

UCS-56(f)(4)(a)

 

(-a) The weld metal shall be deposited by the manual shielded metal arc process using low hydrogen electrodes. The electrodes shall be properly conditioned in accordance with Section II, Part C, SFA-5.1, Annex A,

A6.11; and SFA-5.5, Annex A, A6.12. The maximum bead width shall be four times the electrode core diameter.

 

UHT-82: Due consideration shall be given to electrodes and filler metals for all welding processes to minimize the sources for hydrogen. When low-alloy steel electrodes and filler metals are used, the classification shall include

an H4 supplemental diffusible hydrogen designator (4 ml of hydrogen max. per 100 g of weld metal) for each of the following.


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jaya anil

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Dec 1, 2016, 12:38:35 AM12/1/16
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Hi,

In your case, It is not related to ASME Section VIII Div 1, it shall ensure and meet with  your Welding Codes (ASME Section IX or AWS D1.1) what ever the welding code is applicable to your job.

1) Base Material Specification for which this welding of E 6013 is proposed
2) You need to have a PQR & WPS as per Welding codes lets say Section IX,  in Which your PQR shall pass all Mechanical Tests with this proposed Electrode (E 6013) with respect to base material.

Based on the qualification of  Welding Procedures, you can go ahead. proving that Electrod used is meeting all the code requirements. 

Thanks
Anil



On Wed, Nov 30, 2016 at 1:22 PM, Prasad Rode <puro...@gmail.com> wrote:
Prasad Rode

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Kannayeram Gnanapandithan

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Dec 1, 2016, 2:16:14 AM12/1/16
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since E6013  is having Hydrogen level of 15 to 30 PPM, it is not advisable to use  this electrode in high tensile material/vessels etc

THANKS & BEST REGARDS,
KG.PANDITHAN, IWE,  AWS-CWI, CSWIP 3.1,
CONSULTANT-WELDING & QUALITY
Mobile no: +919940739349

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Hi,

In your case, It is not related to ASME Section VIII Div 1, it shall ensure and meet with  your Welding Codes (ASME Section IX or AWS D1.1) what ever the welding code is applicable to your job.

1) Base Material Specification for which this welding of E 6013 is proposed
2) You need to have a PQR & WPS as per Welding codes lets say Section IX,  in Which your PQR shall pass all Mechanical Tests with this proposed Electrode (E 6013) with respect to base material.

Based on the qualification of  Welding Procedures, you can go ahead. proving that Electrod used is meeting all the code requirements. 

Thanks
Anil

On Wed, Nov 30, 2016 at 1:22 PM, Prasad Rode <puro...@gmail.com> wrote:
Prasad Rode

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anand gupta

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Dec 2, 2016, 9:56:16 PM12/2/16
to material...@googlegroups.com, Prasad Rode
Dear

E6013 is only for structural welding and for pressure vessel you only go for e7018.



Regards
a p gupta


On Wed, 30 Nov, 2016 at 13:22, Prasad Rode
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