Materials & Welding: August 2018

Friday, August 31, 2018

Re: [MW:28239] Regarding Combined Welding Process WPS (GTAW+SMAW)

We're it is given we can change backing .only removal is given.

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[MW:28239] Combination of welding process on wos

if two welders qualify for combination of diff welding process on separate test coupon than both welder can make welding on same joint during production?

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Re: [MW:28239] water sample parameters for hydro test

It has to be a non-flammable liquid, and also non-lethal, some customers ask in their specification that the water is free of salts and minerals, that you show by a documented laboratory test, but in general I would recommend that you review UG-99 of Section VIII DIV.1 of the BPVC ASME, in case this is your Construction Code.

Regards! .

El vie., 31 ago. 2018 a las 8:03, Temburu Chiranjeevulu (<chiru.qaqc@gmail.com>) escribió:

Dear Experts,

What are the parameters of water sample, we have to check before hydro static test.

Thanks and Best Regards,

CHIRANJEEVULU T,
8790956353.

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Ing. José Juan Jiménez Alejandro

ASME Independent Consultant

and Technical Manager SSI-TPI

Cel. +52 812 352 4606

Skype: jjjimeneza

Twitter: @jjjimeneza

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[MW:28238] water sample parameters for hydro test

Dear Experts,

What are the parameters of water sample, we have to check before hydro static test.

Thanks and Best Regards,

CHIRANJEEVULU T,

8790956353.

Wednesday, August 29, 2018

Re: [MW:28237] Tensile properties of 6010 and API 5L X70 Pipe

you can go ahead considering the hardness test .

On Thu, Aug 9, 2018 at 5:18 PM 'Asif Shahzad' via Materials & Welding <materials-welding@googlegroups.com> wrote:

Dear Expert,

we need to weld the API 5L X70 grade pipe and using the electrode 6010 for root, While tensile strength of the 6010 electrode is 430 MPa while tensile strength of X70 grade is (570 to 760)MPa. So tensile strength of 6010 is lower than x70.For hot pass, filling and capping we are using 9010.

Please provide your expert opinion that we can use the electrode having low tensile strength than the base metal and if yes kindly give the reason

Regards,

Asif

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Regards,

Styendra Kumar Tripathi

Mo. No. +919650805549

[MW:28236] VERTICAL SEAM CLADDING

Dear Experts,

I would like to know details of Vertical Seam Cladding on Tanks. We carried out cladding previously which was conventional method but this method we have not done.

Would like to know what is the method to carry out and how the sheets to be fabricated.

Thanks in advance.

Regards,

Vijay

Re: [MW:28235] criteria for ASTM G 28

Hi All.

I have found recently total specification of "GS EP PVV 618" that say 3mm/year(ideally 1-1.2mm/year) for acceptance of G28.

Now does any body know why this amount specified in spite of other documents (that mentioned .8 or .9 mm/year ) and when ideally amount applicable for setting criteria?

Regards.

On Wed, Jul 25, 2018 at 10:10 AM <nithindsilva4u@gmail.com> wrote:

Hi pls find my reply,

1. Same criteria will apply to weld and materials.

We have done this test for weld as well as parent materials (Mill as well as in shop Lab) successfully and could achieve corrosion rates less than 0.8mm/year.

Sent from my iPhone

On Jul 24, 2018, at 17:55, Ali Asghari <asgharialigl@gmail.com> wrote:

Dear Joseph.

Thank you so much. I have found a reference in mentioned address web mail which have been attached.
Based on this image, the acceptance criteria for 625 is 0.9 but there is two item that weaken applicability of it, at title of table said unwelded and in second column that highlighted to as-received.
1.what is your idea, this criteria can be used for weld and clad or not?
2.and in title of G28 applicable for wrought Ni alloys, nevertheless is it applicable for weld qualification?

Regards.

On Tue, Jul 24, 2018 at 2:09 PM, Nithin Joseph <nithindsilva4u@gmail.com> wrote:
Hi,

It depends on client, I have gone through the specs of end users such as ADCO, Tatweer, PDO and they clearly state that it should not exceed 0.9mm/year.
You can also visit below article to know the widely followed corrosion rates for various alloys with their corrosion rates.

https://www.neonickel.com/technical-resources/technical-papers/intergranular-corrosion-tests-cras/

On Tue, Jul 24, 2018 at 10:58 AM, Ali Asghari <asgharialigl@gmail.com> wrote:
Hi.
Thanks.
Would you send documents that mentioned this criteria,unfortunately in our documents only referee to G28.

Thanks.

On Tue, Jul 24, 2018 at 9:51 AM, Nithin Joseph <nithindsilva4u@gmail.com> wrote:
Hi,

You should check client spec and most of the standards give the requirements as 0.9mm/year.

On Mon, Jul 23, 2018 at 9:07 AM, Ali Asghari <asgharialigl@gmail.com> wrote:
Dear Shyamal.
unfortunately in my project specification referred to ASTM G28.
Do you have any access to reference documents that addressed in the document?and would you say in your project spec how much specify to corrosion rate of G28?

Regards

On Sunday, July 22, 2018 at 9:07:51 AM UTC+4:30, shyamal das wrote:

Hi,

Acceptance criteria depends upon the project specifications

Kr

Shyamal

On 10 July 2018 at 17:15, Ali Asghari <asghar...@gmail.com> wrote:
Dear All.

Does anybody have any documents that said about criteria for ASTM G28 OF INCONEL CLAD?

Regards

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Nithin Joseph Dsilva
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Regards,
Nithin Joseph Dsilva
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<20180724_173051_001.jpg>

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Re: [MW:28233] sample preparation of ASTM G28

Hi,

The sample preparation for clad materials is always debatable and should mostly be addressed by end user specification. It should be dictated from the fact that service fluid is in touch with the final clad layer and considering the corrosion allowance. However you may check the entire cross section corrosion rates for your reference.

Thanks & Regards,
Harish

On Aug 29, 2018 12:10 PM, "Ali Asghari" <asgharialigl@gmail.com> wrote:

Dear All.

Does anybody have any experiences or instruction for preparation of sample for G28?is there any requirement to remove clad material from surface and go through it or not?
this question arises from this point that IGC comes from carbide & inter metallics that mostly possible in diluted area and also accepted corrosion rate is about 0.9 mm/year for 625. Now is it reasonable to prepare sample from interface or without removing of thickness and take it from surface?

Regards.

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Re: [MW:28234] sample preparation of ASTM G28

Dear Harish.

Thank you for responding.

"The intent is to test a specimen representing as nearly as possible the material as used in service. The specimens should be cut to represent the grain ﬂow direction that will see service, for example, specimens should not contain cross-sectional areas unless it is the intent of the test to evaluate these. Only such surface ﬁnishing should be performed as is required to remove foreign material and obtain a standard, uniform ﬁnish as speciﬁed in 6.4. For very heavy sections, specimens should be maintained to represent the appropriate surface while maintaining reasonable specimen size for convenience in testing. Ordinarily, removal of more material than necessary will have little inﬂuence on the test results." this paragraph is taken from G28 and only said about the surface area but didn't talk about any thing about cross section or through thickness orientation of sample especially for weld deposited over laid that have a metallurgical & diluted interface can rise possibility of detrimental phase.

Do you have any experience or document that address this issue?

Regards.

On Wed, Aug 29, 2018 at 11:27 AM Harish Kannepalli <harishkannepalli@gmail.com> wrote:

Hi,
The sample preparation for clad materials is always debatable and should mostly be addressed by end user specification. It should be dictated from the fact that service fluid is in touch with the final clad layer and considering the corrosion allowance. However you may check the entire cross section corrosion rates for your reference.

Thanks & Regards,
Harish

On Aug 29, 2018 12:10 PM, "Ali Asghari" <asgharialigl@gmail.com> wrote:
Dear All.

Does anybody have any experiences or instruction for preparation of sample for G28?is there any requirement to remove clad material from surface and go through it or not?
this question arises from this point that IGC comes from carbide & inter metallics that mostly possible in diluted area and also accepted corrosion rate is about 0.9 mm/year for 625. Now is it reasonable to prepare sample from interface or without removing of thickness and take it from surface?

Regards.

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[MW:28232] sample preparation of ASTM G28

Dear All.

Does anybody have any experiences or instruction for preparation of sample for G28?is there any requirement to remove clad material from surface and go through it or not?

this question arises from this point that IGC comes from carbide & inter metallics that mostly possible in diluted area and also accepted corrosion rate is about 0.9 mm/year for 625. Now is it reasonable to prepare sample from interface or without removing of thickness and take it from surface?

Regards.

Monday, August 27, 2018

Re: [MW:28231] HEAT INPUT Vs IMPACT

Hi,
Please find attached a document on key concept regarding heat input and impact value, submitted earlier. It should clear some basic doubts. 

Best Regards,
Shashank  C Vagal (Quality  Adviser), (+91) 8082395502, 8779046302,
NEO METAL-ANALYST & NDT SERVICES 
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                      On Monday, 27 August, 2018, 3:29:54 PM IST, Aslam Khan <aslamkhan15@gmail.com> wrote:                  


Heat Input(J/mm) = (Amperage x Voltage x 60)/Travel Speed
Please check QW-409.1 for detail description..

On Mon 27 Aug, 2018, 8:10 AM Kannayeram Gnanapandithan, <kgpandithan@gmail.com> wrote:
What is the formula for calculating Heat input. Interpass temp is also important to achieve good impact values

On Mon, 27 Aug 2018 8:06 am Paresh Katvi, <pkatvi@gmail.com> wrote:
Not only travel speed but also selection of the welding consumables.Regards,
Paresh 

On Sun, 26 Aug 2018, 15:31 CHITTARANJAN BHIWANDKAR, <crbhiwandkar.smspl@gmail.com> wrote:
Thanks PARESH, In other words the Impact values in MTC 
can be a governing value to decide on travel speed.

On Sun, 26 Aug 2018, 12:36 p.m. Paresh Katvi, <pkatvi@gmail.com> wrote:
Hi 
In my opinion, Heat input is a crucial criteria to achieve impact values in Weld, HAZ and Parent Metal. Travel speed is one of important contributor  for determining heat input. Again it is very important , which material , thickness and welding process used for establishing heat input to achieve desired toughness property. 

You need to referred your historical  records in order to judge and establish heat input parameters to achieve particular range of impact values in given material.

Regards,

Paresh

On Thu, Aug 23, 2018 at 4:35 PM BHIWANDKAR C R <crbhiwandkar.smspl@gmail.com> wrote:
SIR,WHILE PREPARING WPS THE CONSIDERATION OF 
HEAT INPUT JOULES TO JOULES ON MILL T C
IS REQUIRED TO BE DONE. OR THE TRAVEL SPEED
CAN BE DETERMIND ON THE BASIS OF THE IMAPACT
TEST VALUES GIVEN ON MILL TC
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Re: [MW:28230] HEAT INPUT Vs IMPACT

Heat Input(J/mm) = (Amperage x Voltage x 60)/Travel Speed

Please check QW-409.1 for detail description..

On Mon 27 Aug, 2018, 8:10 AM Kannayeram Gnanapandithan, <kgpandithan@gmail.com> wrote:

What is the formula for calculating Heat input. Interpass temp is also important to achieve good impact values

On Mon, 27 Aug 2018 8:06 am Paresh Katvi, <pkatvi@gmail.com> wrote:
Not only travel speed but also selection of the welding consumables.
Regards,
Paresh

On Sun, 26 Aug 2018, 15:31 CHITTARANJAN BHIWANDKAR, <crbhiwandkar.smspl@gmail.com> wrote:
Thanks PARESH,
In other words the Impact values in MTC
can be a governing value to decide on travel speed.

On Sun, 26 Aug 2018, 12:36 p.m. Paresh Katvi, <pkatvi@gmail.com> wrote:
Hi

In my opinion, Heat input is a crucial criteria to achieve impact values in Weld, HAZ and Parent Metal. Travel speed is one of important contributor for determining heat input. Again it is very important , which material , thickness and welding process used for establishing heat input to achieve desired toughness property.

You need to referred your historical records in order to judge and establish heat input parameters to achieve particular range of impact values in given material.

Regards,

Paresh

On Thu, Aug 23, 2018 at 4:35 PM BHIWANDKAR C R <crbhiwandkar.smspl@gmail.com> wrote:
SIR,
WHILE PREPARING WPS THE CONSIDERATION OF
HEAT INPUT JOULES TO JOULES ON MILL T C
IS REQUIRED TO BE DONE. OR THE TRAVEL SPEED
CAN BE DETERMIND ON THE BASIS OF THE IMAPACT
TEST VALUES GIVEN ON MILL TC

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[MW:28229] SSC of Martensite stainless steel

Dear All.

Does anybody have datailed procedure for SSC testing of CRA especially for martensite stainless steel except as EFC17 ?

Regards.

Re: [MW:28228] HEAT INPUT Vs IMPACT

What is the formula for calculating Heat input. Interpass temp is also important to achieve good impact values

On Mon, 27 Aug 2018 8:06 am Paresh Katvi, <pkatvi@gmail.com> wrote:

Not only travel speed but also selection of the welding consumables.
Regards,
Paresh

On Sun, 26 Aug 2018, 15:31 CHITTARANJAN BHIWANDKAR, <crbhiwandkar.smspl@gmail.com> wrote:
Thanks PARESH,
In other words the Impact values in MTC
can be a governing value to decide on travel speed.

On Sun, 26 Aug 2018, 12:36 p.m. Paresh Katvi, <pkatvi@gmail.com> wrote:
Hi

In my opinion, Heat input is a crucial criteria to achieve impact values in Weld, HAZ and Parent Metal. Travel speed is one of important contributor for determining heat input. Again it is very important , which material , thickness and welding process used for establishing heat input to achieve desired toughness property.

You need to referred your historical records in order to judge and establish heat input parameters to achieve particular range of impact values in given material.

Regards,

Paresh

On Thu, Aug 23, 2018 at 4:35 PM BHIWANDKAR C R <crbhiwandkar.smspl@gmail.com> wrote:
SIR,
WHILE PREPARING WPS THE CONSIDERATION OF
HEAT INPUT JOULES TO JOULES ON MILL T C
IS REQUIRED TO BE DONE. OR THE TRAVEL SPEED
CAN BE DETERMIND ON THE BASIS OF THE IMAPACT
TEST VALUES GIVEN ON MILL TC

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Re: [MW:28227] HEAT INPUT Vs IMPACT

Not only travel speed but also selection of the welding consumables.

Regards,

Paresh

On Sun, 26 Aug 2018, 15:31 CHITTARANJAN BHIWANDKAR, <crbhiwandkar.smspl@gmail.com> wrote:

Thanks PARESH,
In other words the Impact values in MTC
can be a governing value to decide on travel speed.

On Sun, 26 Aug 2018, 12:36 p.m. Paresh Katvi, <pkatvi@gmail.com> wrote:
Hi

In my opinion, Heat input is a crucial criteria to achieve impact values in Weld, HAZ and Parent Metal. Travel speed is one of important contributor for determining heat input. Again it is very important , which material , thickness and welding process used for establishing heat input to achieve desired toughness property.

You need to referred your historical records in order to judge and establish heat input parameters to achieve particular range of impact values in given material.

Regards,

Paresh

On Thu, Aug 23, 2018 at 4:35 PM BHIWANDKAR C R <crbhiwandkar.smspl@gmail.com> wrote:
SIR,
WHILE PREPARING WPS THE CONSIDERATION OF
HEAT INPUT JOULES TO JOULES ON MILL T C
IS REQUIRED TO BE DONE. OR THE TRAVEL SPEED
CAN BE DETERMIND ON THE BASIS OF THE IMAPACT
TEST VALUES GIVEN ON MILL TC

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Sunday, August 26, 2018

Re: [MW:28226] Re: Tensile properties of 6010 and API 5L X70 Pipe

PLS SPECIFY DIA.& THK. OF THE PIPE

Thanks/Regards,

C.R.Bhiwandkar

Supreme Megastructures Pvt. Ltd.

Supreme House, Plot No.-49/C,

Pratap Gad, Opp.-IIT Main Gate.

Powai, Mumbai - 400076

Cell No.:-+919867139337

On Sun, Aug 26, 2018 at 4:36 PM Mohd Siraj <mohd52100@gmail.com> wrote:

asif,
6010+9010 (or 9018 up hill)would be good choice,

8010 would may lead to hot cracking...

On Thursday, August 9, 2018 at 2:48:37 PM UTC+3, Asif Shahzad wrote:

Dear Expert,

we need to weld the API 5L X70 grade pipe and using the electrode 6010 for root, While tensile strength of the 6010 electrode is 430 MPa while tensile strength of X70 grade is (570 to 760)MPa. So tensile strength of 6010 is lower than x70.For hot pass, filling and capping we are using 9010.

Please provide your expert opinion that we can use the electrode having low tensile strength than the base metal and if yes kindly give the reason

Regards,

Asif

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[MW:28225] Re: Tensile properties of 6010 and API 5L X70 Pipe

asif,

6010+9010 (or 9018 up hill)would be good choice,

8010 would may lead to hot cracking...

On Thursday, August 9, 2018 at 2:48:37 PM UTC+3, Asif Shahzad wrote:

Dear Expert,

we need to weld the API 5L X70 grade pipe and using the electrode 6010 for root, While tensile strength of the 6010 electrode is 430 MPa while tensile strength of X70 grade is (570 to 760)MPa. So tensile strength of 6010 is lower than x70.For hot pass, filling and capping we are using 9010.

Please provide your expert opinion that we can use the electrode having low tensile strength than the base metal and if yes kindly give the reason

Regards,

Asif

Re: [MW:28224] HEAT INPUT Vs IMPACT

Thanks PARESH,

In other words the Impact values in MTC

can be a governing value to decide on travel speed.

On Sun, 26 Aug 2018, 12:36 p.m. Paresh Katvi, <pkatvi@gmail.com> wrote:

Hi

In my opinion, Heat input is a crucial criteria to achieve impact values in Weld, HAZ and Parent Metal. Travel speed is one of important contributor for determining heat input. Again it is very important , which material , thickness and welding process used for establishing heat input to achieve desired toughness property.

You need to referred your historical records in order to judge and establish heat input parameters to achieve particular range of impact values in given material.

Regards,

Paresh

On Thu, Aug 23, 2018 at 4:35 PM BHIWANDKAR C R <crbhiwandkar.smspl@gmail.com> wrote:
SIR,
WHILE PREPARING WPS THE CONSIDERATION OF
HEAT INPUT JOULES TO JOULES ON MILL T C
IS REQUIRED TO BE DONE. OR THE TRAVEL SPEED
CAN BE DETERMIND ON THE BASIS OF THE IMAPACT
TEST VALUES GIVEN ON MILL TC

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Re: [MW:28223] HEAT INPUT Vs IMPACT

In my opinion, Heat input is a crucial criteria to achieve impact values in Weld, HAZ and Parent Metal. Travel speed is one of important contributor for determining heat input. Again it is very important , which material , thickness and welding process used for establishing heat input to achieve desired toughness property.

You need to referred your historical records in order to judge and establish heat input parameters to achieve particular range of impact values in given material.

Regards,

Paresh

On Thu, Aug 23, 2018 at 4:35 PM BHIWANDKAR C R <crbhiwandkar.smspl@gmail.com> wrote:

SIR,
WHILE PREPARING WPS THE CONSIDERATION OF
HEAT INPUT JOULES TO JOULES ON MILL T C
IS REQUIRED TO BE DONE. OR THE TRAVEL SPEED
CAN BE DETERMIND ON THE BASIS OF THE IMAPACT
TEST VALUES GIVEN ON MILL TC

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Re: [MW:28222] Throat Thickness in welding between DIN-18800 part 1 & EN1993 part 1

Check asme B 31.3 or 31.1 are incorporating with your requirements, if not there will be client specifications where his requirements ensured with the reference to international codes.

Regards

Muneeb.

On Sat, Aug 25, 2018, 1:04 PM 'Bijay' via Materials & Welding <materials-welding@googlegroups.com> wrote:

Dear Experts

In one of my project I have facing problems in throat thickness of welding.
Our governing code for welding is DIN - 18800 part 1, but as per clients instruction we have to follow the EN 1993 part 1 for throat thickness.
I can't find anything regarding throat thickness. Please guide what to do ?
Thank you in advance.

With Regards

Bijay Kumar Choudhury
Mob +91 8980630973

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Materials & Welding

Friday, August 31, 2018

Re: [MW:28239] Regarding Combined Welding Process WPS (GTAW+SMAW)

[MW:28239] Combination of welding process on wos

Re: [MW:28239] water sample parameters for hydro test

[MW:28238] water sample parameters for hydro test

Wednesday, August 29, 2018

Re: [MW:28237] Tensile properties of 6010 and API 5L X70 Pipe

[MW:28236] VERTICAL SEAM CLADDING

Re: [MW:28235] criteria for ASTM G 28

Re: [MW:28233] sample preparation of ASTM G28

Re: [MW:28234] sample preparation of ASTM G28

[MW:28232] sample preparation of ASTM G28

Monday, August 27, 2018

Re: [MW:28231] HEAT INPUT Vs IMPACT

Re: [MW:28230] HEAT INPUT Vs IMPACT

[MW:28229] SSC of Martensite stainless steel

Re: [MW:28228] HEAT INPUT Vs IMPACT

Re: [MW:28227] HEAT INPUT Vs IMPACT

Sunday, August 26, 2018

Re: [MW:28226] Re: Tensile properties of 6010 and API 5L X70 Pipe

[MW:28225] Re: Tensile properties of 6010 and API 5L X70 Pipe

Re: [MW:28224] HEAT INPUT Vs IMPACT

Re: [MW:28223] HEAT INPUT Vs IMPACT

Re: [MW:28222] Throat Thickness in welding between DIN-18800 part 1 & EN1993 part 1

[MW:35346] Cast-iron welding

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