Materials & Welding: March 2008

Saturday, March 29, 2008

[MW:701] Re: 698] Re: PMI TESTING OF SS 304L

XRF can only detect elements with atomic numbers greater than 21 i.e.
starting with Titanium onwards. Therefore, it cannot quantify C, S, P, etc.
So, it can tell the difference between SS304 and SS316, but not SS316 and
SS316L.

OES can detect all the elements including carbon, so it can be used very
conveniently for segregating even SS316 and SS316L.

Regards,

Kartik Iyer.
ELCA Laboratories.

----- Original Message -----
From: "Bathula Raghuram (Mumbai - PIPING)" <R.Bathula@ticb.com>
To: <materials-welding@googlegroups.com>
Sent: Thursday, March 27, 2008 7:22 PM
Subject: [MW:699] RE: 698] Re: PMI TESTING OF SS 304L

that's one of the main diff between OES and XRF analysers, where XRF
analysers can't detect %C and trace elements like S,P etc....

DEAR PINAKIN,

THANKS FOR THE REPLY. IN THAT CASE HOW TO DIFFERNTIATE SS304 FROM 304L AND
SS316 FROM 316L. IF WE CAN NOT ANALYSE CARBON %.

REGARDS,

S.N.DAVE

pinakin jani <pbjani50@yahoo.co.in> wrote:
Dear Dave,
PMI can tell you the % of the contains like Ni, mo etc. Based on this % we
can check our requirement.

Regards,

Jani Pinakin

----- Original Message ----
From: Bathula Raghuram (Mumbai - PIPING) <R.Bathula@ticb.com>
To: materials-welding@googlegroups.com
Sent: Monday, 24 March, 2008 2:42:02 PM
Subject: [MW:686] PMI TESTING OF SS 304L

Probably spectro isort by Amtek can detect C, (thou I have not
used it), you can try at www.spectro.com

Also Arcmet930 by Metorex can detect C

---------------------------------

From: shailesh dave [mailto: snd2988@yahoo.com ]
Sent: Monday, March 24, 2008 2:07 PM
To: materials-welding@googlegroups.com
Subject: PMI TESTING OF SS 304L

DEAR MEMBERS,

CAN ANYBODY TELL ME WHAT TECHNIQUE SHOULD BE USE TO PERFORM PMI OF
SS304L. SINCE CARBON ANALYSIS IS VERY VERY IMPORTANT.

REGARDS,

S.N.DAVE

QA/QC MANAGER - TATA PROJECTS,

IWPP -III, SHUIBAH , SAUDI ARABIA

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Thursday, March 27, 2008

[MW:699] RE: 698] Re: PMI TESTING OF SS 304L

that's one of the main diff between OES and XRF analysers, where XRF analysers can't detect %C and trace elements like S,P etc....

-----Original Message-----
From: materials-welding@googlegroups.com on behalf of shailesh dave
Sent: Wed 26/03/2008 18:30
To: materials-welding@googlegroups.com
Subject: [MW:698] Re: PMI TESTING OF SS 304L

DEAR PINAKIN,

THANKS FOR THE REPLY. IN THAT CASE HOW TO DIFFERNTIATE SS304 FROM 304L AND SS316 FROM 316L. IF WE CAN NOT ANALYSE CARBON %.

REGARDS,

S.N.DAVE

pinakin jani <pbjani50@yahoo.co.in> wrote:
Dear Dave,
PMI can tell you the % of the contains like Ni, mo etc. Based on this % we can check our requirement.

Regards,

Jani Pinakin

Probably spectro isort by Amtek can detect C, (thou I have not used it), you can try at www.spectro.com

Also Arcmet930 by Metorex can detect C

---------------------------------

From: shailesh dave [mailto: snd2988@yahoo.com ]
Sent: Monday, March 24, 2008 2:07 PM
To: materials-welding@googlegroups.com
Subject: PMI TESTING OF SS 304L

DEAR MEMBERS,

CAN ANYBODY TELL ME WHAT TECHNIQUE SHOULD BE USE TO PERFORM PMI OF SS304L. SINCE CARBON ANALYSIS IS VERY VERY IMPORTANT.

REGARDS,

S.N.DAVE

QA/QC MANAGER - TATA PROJECTS,

IWPP -III, SHUIBAH , SAUDI ARABIA

---------------------------------
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Wednesday, March 26, 2008

[MW:698] Re: PMI TESTING OF SS 304L

DEAR PINAKIN,

THANKS FOR THE REPLY. IN THAT CASE HOW TO DIFFERNTIATE SS304 FROM 304L AND SS316 FROM 316L. IF WE CAN NOT ANALYSE CARBON %.

REGARDS,

S.N.DAVE

pinakin jani <pbjani50@yahoo.co.in> wrote:

Dear Dave,
PMI can tell you the % of the contains like Ni, mo etc. Based on this % we can check our requirement.

Regards,

Jani Pinakin

----- Original Message ----
From: Bathula Raghuram (Mumbai - PIPING) <R.Bathula@ticb.com>
To: materials-welding@googlegroups.com
Sent: Monday, 24 March, 2008 2:42:02 PM
Subject: [MW:686] PMI TESTING OF SS 304L

Probably spectro isort by Amtek can detect C, (thou I have not used it), you can try at www.spectro.com

Also Arcmet930 by Metorex can detect C

From: shailesh dave [mailto: snd2988@yahoo.com ]
Sent: Monday, March 24, 2008 2:07 PM
To: materials-welding@googlegroups.com
Subject: PMI TESTING OF SS 304L

DEAR MEMBERS,

CAN ANYBODY TELL ME WHAT TECHNIQUE SHOULD BE USE TO PERFORM PMI OF SS304L. SINCE CARBON ANALYSIS IS VERY VERY IMPORTANT.

REGARDS,

S.N.DAVE

QA/QC MANAGER - TATA PROJECTS,

IWPP -III, SHUIBAH , SAUDI ARABIA

Get the freedom to save as many mails as you wish. Click here to know how.

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For more options, visit this group's bolg at http://materials-welding.blogspot.com/
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[MW:697] Re: PMI TESTING OF SS 304L

Dear Dave,
PMI can tell you the % of the contains like Ni, mo etc. Based on this % we can check our requirement.

Regards,

Jani Pinakin

Probably spectro isort by Amtek can detect C, (thou I have not used it), you can try at www.spectro.com

Also Arcmet930 by Metorex can detect C

From: shailesh dave [mailto: snd2988@yahoo.com ]
Sent: Monday, March 24, 2008 2:07 PM
To: materials-welding@googlegroups.com
Subject: PMI TESTING OF SS 304L

DEAR MEMBERS,

CAN ANYBODY TELL ME WHAT TECHNIQUE SHOULD BE USE TO PERFORM PMI OF SS304L. SINCE CARBON ANALYSIS IS VERY VERY IMPORTANT.

REGARDS,

S.N.DAVE

QA/QC MANAGER - TATA PROJECTS,

IWPP -III, SHUIBAH , SAUDI ARABIA

Get the freedom to save as many mails as you wish. Click here to know how.
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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.
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Tuesday, March 25, 2008

[MW:696] Re: 683] Re: Section IX QW 200.4(b)

Dear all,

I think my question is not clear to all, so i can explain once again that: to make a WPS by combining two PQR's, is it mandatory that the first PQR shall be qualified in half inch minimum?

sajeev

Raghuram Bathula <raghurambathula@gmail.com> wrote:

for GTAW process T would be 20mm max.

On Mar 25, 6:33 pm, "kumara bala" wrote:
> Is it 20 or 200? It might be 200..
>
> On Mon, Mar 24, 2008 at 7:04 AM, Bathula Raghuram (Mumbai - PIPING) <
>
> R.Bath...@ticb.com> wrote:
> > You can use combination of these processes to weld a base metal thickness
> > (T) of up to 20mm max.
>
> > ------------------------------
>
> > *From:* materials-welding@googlegroups.com [mailto:
> > materials-welding@googlegroups.com] *On Behalf Of *shabbir ahmad
> > *Sent:* Saturday, March 22, 2008 2:07 PM
> > *To:* materials-welding@googlegroups.com
> > *Subject:* [MW:683] Re: Section IX QW 200.4(b)
>
> > Yes Sanjeev
>
> > U can use GTAW for root deposit as per QW 200.4b.
>
> > shabbir
>
> > On 3/21/08, *jitendra Thakor* wrote:
>
> > Dear Sanjeev
>
> > As per QW200.4(b) it is mandatory that your GTAW PQR thickness should
> > be minimum 13 mm. than you use GTAW as root as qualified in PQR.
>
> > Regards
> > Jitendra
>
> > On Fri, Mar 21, 2008 at 2:11 PM, sajeev c.g wrote:
> > > Dear all,
>
> > > I have to prepare a WPS from two PQR's as per section IX.
> > > PQR 1 qualified in 10mm coupon full GTAW
> > > PQR 2 qualified in 40mm coupon SMAW+SAW(20mm deposit each)
>
> > > Can i write a WPS to weld GTAW (root) + SMAW+SAW?
> > > As per QW200.4(b) is it mandatory that the PQR 1 will be qualified in
> > 13mm
> > > minimum to write a WPS as above?
>
> > > Regards
> > > sajeev

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[MW:695] Re: 683] Re: Section IX QW 200.4(b)

for GTAW process T would be 20mm max.

On Mar 25, 6:33 pm, "kumara bala" <kumsr...@gmail.com> wrote:
> Is it 20 or 200? It might be 200..
>
> On Mon, Mar 24, 2008 at 7:04 AM, Bathula Raghuram (Mumbai - PIPING) <
>
> R.Bath...@ticb.com> wrote:
> > You can use combination of these processes to weld a base metal thickness
> > (T) of up to 20mm max.
>
> > ------------------------------
>
> > *From:* materials-welding@googlegroups.com [mailto:
> > materials-welding@googlegroups.com] *On Behalf Of *shabbir ahmad
> > *Sent:* Saturday, March 22, 2008 2:07 PM
> > *To:* materials-welding@googlegroups.com
> > *Subject:* [MW:683] Re: Section IX QW 200.4(b)
>
> > Yes Sanjeev
>
> > U can use GTAW for root deposit as per QW 200.4b.
>
> > shabbir
>
> > On 3/21/08, *jitendra Thakor* <jitendratha...@gmail.com> wrote:
>
> > Dear Sanjeev
>
> > As per QW200.4(b) it is mandatory that your GTAW PQR thickness should
> > be minimum 13 mm. than you use GTAW as root as qualified in PQR.
>
> > Regards
> > Jitendra
>
> > On Fri, Mar 21, 2008 at 2:11 PM, sajeev c.g <sajeevm...@yahoo.com> wrote:
> > > Dear all,
>
> > > I have to prepare a WPS from two PQR's as per section IX.
> > > PQR 1 qualified in 10mm coupon full GTAW
> > > PQR 2 qualified in 40mm coupon SMAW+SAW(20mm deposit each)
>
> > > Can i write a WPS to weld GTAW (root) + SMAW+SAW?
> > > As per QW200.4(b) is it mandatory that the PQR 1 will be qualified in
> > 13mm
> > > minimum to write a WPS as above?
>
> > > Regards
> > > sajeev

[MW:693] Re: 683] Re: Section IX QW 200.4(b)

Is it 20 or 200? It might be 200..

On Mon, Mar 24, 2008 at 7:04 AM, Bathula Raghuram (Mumbai - PIPING) <R.Bathula@ticb.com> wrote:

You can use combination of these processes to weld a base metal thickness (T) of up to 20mm max.

From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of shabbir ahmad
Sent: Saturday, March 22, 2008 2:07 PM
To: materials-welding@googlegroups.com
Subject: [MW:683] Re: Section IX QW 200.4(b)

Yes Sanjeev

U can use GTAW for root deposit as per QW 200.4b.

shabbir

On 3/21/08, jitendra Thakor <jitendrathakor@gmail.com> wrote:

Dear Sanjeev

As per QW200.4(b) it is mandatory that your GTAW PQR thickness should
be minimum 13 mm. than you use GTAW as root as qualified in PQR.

Regards
Jitendra

On Fri, Mar 21, 2008 at 2:11 PM, sajeev c.g <sajeevmech@yahoo.com> wrote:
> Dear all,
>
> I have to prepare a WPS from two PQR's as per section IX.
> PQR 1 qualified in 10mm coupon full GTAW
> PQR 2 qualified in 40mm coupon SMAW+SAW(20mm deposit each)
>
> Can i write a WPS to weld GTAW (root) + SMAW+SAW?
> As per QW200.4(b) is it mandatory that the PQR 1 will be qualified in 13mm
> minimum to write a WPS as above?
>
> Regards
> sajeev
>
> ________________________________
>
> Looking for last minute shopping deals? Find them fast with Yahoo! Search.
> >
>
<br

[MW:694] Re: 688] Re: PMI TESTING OF SS 304L

Dear Sir,

Unlike using the ED-XRF, there are quite a few areas to be taken care of, in
case you will be using a spark emission portable spectrometer like the
ARCMET. Argon gas of 99.999% min purity is to be used. The gas flow also has
to be controlled as per the instrument requirements, as even setting an
improper flow rate can lead to improper purging, eventually leading to a
deviation in the test results.

Also, the surface to be checked has to be polished using a 60 grit paper (
as this surface finish is used when the equipment is calibrated). This
polished surface should the be checked as soon as possible to avoid any
contamination.

Nowadays, when we use the new models like the ARCMET 8000, we can test flat
as well as round surfaces, as there are adapters available for the same.
Normally, even 1 inch O/D pipes can also be checked using this equipment
with concordant results as per our experience. Of course, for flat surfaces,
there is no problem at all.

Generally, this is a slower process as compared to the XRF, but it yields
quite excellent, accurate and repeatable results.

Regards,

N. Kalyan.
ELCA Laboratories, Thane and Pune.

----- Original Message -----
From: "Raghuram Bathula" <raghurambathula@gmail.com>
To: "Materials & Welding" <materials-welding@googlegroups.com>
Sent: Monday, March 24, 2008 9:39 PM
Subject: [MW:691] Re: 688] Re: PMI TESTING OF SS 304L

>
> you can try ultrahigh pure from the following range, research purity
> may not be avaialble offthe shelf
> RESEARCH PURITY 99.9999%
> ULTRA HIGH PURE 99.999%
> PRE-PURIFIED 99.998%
> ZERO GAS 99.998%
> HIGH PURITY 99.995%
> also surface cleaning of the conatcat area importatnt, consult your
> analyser supplier for further help!
>
> On Mar 24, 3:35 pm, shailesh dave <snd2...@yahoo.com> wrote:
> DEAR Mr. RAGHURAM,
>
> BUT SPARK EMISSION WHAT WE ARE ADOPTING HERE IS ARGON BASED AND MANY
> TIMES I FOUND PURITY OF ARGON IS NOT ENSURED. HENCE I AM RELUCANT TO
> GO FOR SPARK EMISSION FOR PMI OF LOW CARBON SS.
>
> YOUR VIEWS PLEASE.
>
> REGARDS,
>
> S.N.DAVE
>
>
> >

[MW:692] Re: 688] Re: PMI TESTING OF SS 304L

Dear all,

When using Arcmet its vital to get 99.9% pure argon gas plus ensuring that the surface is grinded and polished. Here is an excerpt from TCR's procedure for Arcmet operations in terms of pre-requisites:

The component subjected to the test shall have a flat surface area of approximately about 20 x 20mm square and the same shall be finished with a 60 grit abrasive paper using either a portable grinder or a polishing machine. The metallic surface to be tested shall be free from all extraneous materials such as scale, grease, rust, dirt, etc. which may interfere with the testing. ArcMet cannot be used for smaller size pipes and fittings. Its best performance is for larger than 50 NB size. For optical emissions based PMI, the technician will need Instrument Grade Argon of 99.999% purity argon gas as well available at site. Input of 230 Volt AC is required.

We do PMI with both XRF as well as portable OES (such as an Arcmet) in Saudi Arabia, Kuwait and in India.

Regards

Rohit Bafna

TCR Engineering

On Mon, Mar 24, 2008 at 12:09 PM, Raghuram Bathula <raghurambathula@gmail.com> wrote:

you can try ultrahigh pure from the following range, research purity
may not be avaialble offthe shelf
RESEARCH PURITY 99.9999%
ULTRA HIGH PURE 99.999%
PRE-PURIFIED 99.998%
ZERO GAS 99.998%
HIGH PURITY 99.995%
also surface cleaning of the conatcat area importatnt, consult your
analyser supplier for further help!

On Mar 24, 3:35 pm, shailesh dave <snd2...@yahoo.com> wrote:
DEAR Mr. RAGHURAM,

BUT SPARK EMISSION WHAT WE ARE ADOPTING HERE IS ARGON BASED AND MANY
TIMES I FOUND PURITY OF ARGON IS NOT ENSURED. HENCE I AM RELUCANT TO
GO FOR SPARK EMISSION FOR PMI OF LOW CARBON SS.

YOUR VIEWS PLEASE.

REGARDS,

S.N.DAVE

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For more options, visit this group's bolg at http://materials-welding.blogspot.com/
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By BR - March 25, 2008 No comments:
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Monday, March 24, 2008

[MW:691] Re: 688] Re: PMI TESTING OF SS 304L

you can try ultrahigh pure from the following range, research purity
may not be avaialble offthe shelf
RESEARCH PURITY 99.9999%
ULTRA HIGH PURE 99.999%
PRE-PURIFIED 99.998%
ZERO GAS 99.998%
HIGH PURITY 99.995%
also surface cleaning of the conatcat area importatnt, consult your
analyser supplier for further help!

On Mar 24, 3:35 pm, shailesh dave <snd2...@yahoo.com> wrote:
DEAR Mr. RAGHURAM,

BUT SPARK EMISSION WHAT WE ARE ADOPTING HERE IS ARGON BASED AND MANY
TIMES I FOUND PURITY OF ARGON IS NOT ENSURED. HENCE I AM RELUCANT TO
GO FOR SPARK EMISSION FOR PMI OF LOW CARBON SS.

YOUR VIEWS PLEASE.

REGARDS,

S.N.DAVE

[MW:690] Re: 688] Re: PMI TESTING OF SS 304L

DEAR Mr. RAGHURAM,

BUT SPARK EMISSION WHAT WE ARE ADOPTING HERE IS ARGON BASED AND MANY TIMES I FOUND PURITY OF ARGON IS NOT ENSURED. HENCE I AM RELUCANT TO GO FOR SPARK EMISSION FOR PMI OF LOW CARBON SS.

YOUR VIEWS PLEASE.

REGARDS,

S.N.DAVE

"Bathula Raghuram (Mumbai - PIPING)" <R.Bathula@ticb.com> wrote:

Why not? Infact only sprak emission method can detect C, as these are not portables instruments maneuvering at construction sites is very difficult

Both Arc met and PMI Master (see the other post by Mr Nadig, WAS is from oxford instruments, US) are gas based, where the principle of Spectro isort is quite different, it neither use Argon nor X-ray source.

However take care while using spark emission on lighter wall components

From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of shailesh dave
Sent: Monday, March 24, 2008 2:58 PM
To: materials-welding@googlegroups.com
Subject: [MW:688] Re: PMI TESTING OF SS 304L

DEAR Mr. RAGHURAM,

THANKS FOR THE REPLY. JUST ADVISE ME IS IT RECOMMANDED TO USE SPARK EMISSION TECHNIQUE ON SS 304L MATERAIL FOR PMI.

AWAITING YOUR REPLY.

REGARDS,

S.N.DAVE

"Bathula Raghuram (Mumbai - PIPING)" <R.Bathula@ticb.com> wrote:

Probably spectro isort by Amtek can detect C, (thou I have not used it), you can try at www.spectro.com

Also Arcmet930 by Metorex can detect C

From: shailesh dave [mailto:snd2988@yahoo.com]
Sent: Monday, March 24, 2008 2:07 PM
To: materials-welding@googlegroups.com
Subject: PMI TESTING OF SS 304L

DEAR MEMBERS,

CAN ANYBODY TELL ME WHAT TECHNIQUE SHOULD BE USE TO PERFORM PMI OF SS304L. SINCE CARBON ANALYSIS IS VERY VERY IMPORTANT.

REGARDS,

S.N.DAVE

QA/QC MANAGER - TATA PROJECTS,

IWPP -III, SHUIBAH, SAUDI ARABIA

Be a better friend, newshound, and know-it-all with Yahoo! Mobile. Try it now. --~--~---------~--~----~------------~-------~--~----~
To post to this group, send email to materials-welding@googlegroups.com
To unsubscribe from this group, send email to materials-welding-unsubscribe@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.
-~----------~----~----~----~------~----~------~--~---

[MW:689] RE: 688] Re: PMI TESTING OF SS 304L

Why not? Infact only sprak emission method can detect C, as these are not portables instruments maneuvering at construction sites is very difficult

Both Arc met and PMI Master (see the other post by Mr Nadig, WAS is from oxford instruments, US) are gas based, where the principle of Spectro isort is quite different, it neither use Argon nor X-ray source.

However take care while using spark emission on lighter wall components

From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of shailesh dave
Sent: Monday, March 24, 2008 2:58 PM
To: materials-welding@googlegroups.com
Subject: [MW:688] Re: PMI TESTING OF SS 304L

DEAR Mr. RAGHURAM,

THANKS FOR THE REPLY. JUST ADVISE ME IS IT RECOMMANDED TO USE SPARK EMISSION TECHNIQUE ON SS 304L MATERAIL FOR PMI.

AWAITING YOUR REPLY.

REGARDS,

S.N.DAVE

"Bathula Raghuram (Mumbai - PIPING)" <R.Bathula@ticb.com> wrote:

Probably spectro isort by Amtek can detect C, (thou I have not used it), you can try at www.spectro.com

Also Arcmet930 by Metorex can detect C

From: shailesh dave [mailto:snd2988@yahoo.com]
Sent: Monday, March 24, 2008 2:07 PM
To: materials-welding@googlegroups.com
Subject: PMI TESTING OF SS 304L

DEAR MEMBERS,

CAN ANYBODY TELL ME WHAT TECHNIQUE SHOULD BE USE TO PERFORM PMI OF SS304L. SINCE CARBON ANALYSIS IS VERY VERY IMPORTANT.

REGARDS,

S.N.DAVE

QA/QC MANAGER - TATA PROJECTS,

IWPP -III, SHUIBAH, SAUDI ARABIA

[MW:687] Re: PMI TESTING OF SS 304L

We are using PMI- Master Plus supplied by WAS World wide Analytical System AG,Germany for PMI where carbon detection is needed.

Regards
Nadig

On Mon, 24 Mar 2008 Bathula Raghuram(Mumbai - PIPING) wrote :
>Probably spectro isort by Amtek can detect C, (thou I have not used it),
>you can try at www.spectro.com <http://www.spectro.com/>
>
>
>
>Also Arcmet930 by Metorex can detect C
>
>
>
>________________________________
>
> From: shailesh dave [mailto:snd2988@yahoo.com]
>Sent: Monday, March 24, 2008 2:07 PM
>To: materials-welding@googlegroups.com
>Subject: PMI TESTING OF SS 304L
>
>
>
>DEAR MEMBERS,
>
>
>
>CAN ANYBODY TELL ME WHAT TECHNIQUE SHOULD BE USE TO PERFORM PMI OF
>SS304L. SINCE CARBON ANALYSIS IS VERY VERY IMPORTANT.
>
>
>
>REGARDS,
>
>
>
>S.N.DAVE
>
>
>
>QA/QC MANAGER - TATA PROJECTS,
>
>
>
>IWPP -III, SHUIBAH, SAUDI ARABIA
>
>
>>

[MW:688] Re: PMI TESTING OF SS 304L

DEAR Mr. RAGHURAM,

THANKS FOR THE REPLY. JUST ADVISE ME IS IT RECOMMANDED TO USE SPARK EMISSION TECHNIQUE ON SS 304L MATERAIL FOR PMI.

AWAITING YOUR REPLY.

REGARDS,

S.N.DAVE

"Bathula Raghuram (Mumbai - PIPING)" <R.Bathula@ticb.com> wrote:

Probably spectro isort by Amtek can detect C, (thou I have not used it), you can try at www.spectro.com

Also Arcmet930 by Metorex can detect C

From: shailesh dave [mailto:snd2988@yahoo.com]
Sent: Monday, March 24, 2008 2:07 PM
To: materials-welding@googlegroups.com
Subject: PMI TESTING OF SS 304L

DEAR MEMBERS,

CAN ANYBODY TELL ME WHAT TECHNIQUE SHOULD BE USE TO PERFORM PMI OF SS304L. SINCE CARBON ANALYSIS IS VERY VERY IMPORTANT.

REGARDS,

S.N.DAVE

QA/QC MANAGER - TATA PROJECTS,

IWPP -III, SHUIBAH, SAUDI ARABIA

Be a better friend, newshound, and know-it-all with Yahoo! Mobile. Try it now. --~--~---------~--~----~------------~-------~--~----~
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To unsubscribe from this group, send email to materials-welding-unsubscribe@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.
-~----------~----~----~----~------~----~------~--~---

[MW:686] PMI TESTING OF SS 304L

Probably spectro isort by Amtek can detect C, (thou I have not used it), you can try at www.spectro.com

Also Arcmet930 by Metorex can detect C

From: shailesh dave [mailto:snd2988@yahoo.com]
Sent: Monday, March 24, 2008 2:07 PM
To: materials-welding@googlegroups.com
Subject: PMI TESTING OF SS 304L

DEAR MEMBERS,

CAN ANYBODY TELL ME WHAT TECHNIQUE SHOULD BE USE TO PERFORM PMI OF SS304L. SINCE CARBON ANALYSIS IS VERY VERY IMPORTANT.

REGARDS,

S.N.DAVE

QA/QC MANAGER - TATA PROJECTS,

IWPP -III, SHUIBAH, SAUDI ARABIA

[MW:685] RE: 683] Re: Section IX QW 200.4(b)

You can use combination of these processes to weld a base metal thickness (T) of up to 20mm max.

From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of shabbir ahmad
Sent: Saturday, March 22, 2008 2:07 PM
To: materials-welding@googlegroups.com
Subject: [MW:683] Re: Section IX QW 200.4(b)

Yes Sanjeev

U can use GTAW for root deposit as per QW 200.4b.

shabbir

On 3/21/08, jitendra Thakor <jitendrathakor@gmail.com> wrote:

Dear Sanjeev

As per QW200.4(b) it is mandatory that your GTAW PQR thickness should
be minimum 13 mm. than you use GTAW as root as qualified in PQR.

Regards
Jitendra

On Fri, Mar 21, 2008 at 2:11 PM, sajeev c.g <sajeevmech@yahoo.com> wrote:
> Dear all,
>
> I have to prepare a WPS from two PQR's as per section IX.
> PQR 1 qualified in 10mm coupon full GTAW
> PQR 2 qualified in 40mm coupon SMAW+SAW(20mm deposit each)
>
> Can i write a WPS to weld GTAW (root) + SMAW+SAW?
> As per QW200.4(b) is it mandatory that the PQR 1 will be qualified in 13mm
> minimum to write a WPS as above?
>
> Regards
> sajeev
>
> ________________________________
>
> Looking for last minute shopping deals? Find them fast with Yahoo! Search.
> >
>
<br

Saturday, March 22, 2008

[MW:684] PQR

friends,

I want to write a wps as per section IX

PQR 1 Qualified 10 mm coupon full GTAW

PQR 2 Qualified 40 mm coupon SMAW +SAW

CAN I WRITE WPS ROOT GTAW + SMAW or SAW

is it mandatory 200.4 (b) PQR 1 qualified 13 mm

BABU.P.R

WELDING INSPECTOR

IREM K.S.A

Looking for last minute shopping deals? Find them fast with Yahoo! Search. --~--~---------~--~----~------------~-------~--~----~
To post to this group, send email to materials-welding@googlegroups.com
To unsubscribe from this group, send email to materials-welding-unsubscribe@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.
-~----------~----~----~----~------~----~------~--~---

[MW:683] Re: Section IX QW 200.4(b)

Yes Sanjeev

U can use GTAW for root deposit as per QW 200.4b.

shabbir

On 3/21/08, jitendra Thakor <jitendrathakor@gmail.com> wrote:

Dear Sanjeev

As per QW200.4(b) it is mandatory that your GTAW PQR thickness should
be minimum 13 mm. than you use GTAW as root as qualified in PQR.

Regards
Jitendra

On Fri, Mar 21, 2008 at 2:11 PM, sajeev c.g <sajeevmech@yahoo.com> wrote:
> Dear all,
>
> I have to prepare a WPS from two PQR's as per section IX.
> PQR 1 qualified in 10mm coupon full GTAW
> PQR 2 qualified in 40mm coupon SMAW+SAW(20mm deposit each)
>
> Can i write a WPS to weld GTAW (root) + SMAW+SAW?
> As per QW200.4(b) is it mandatory that the PQR 1 will be qualified in 13mm
> minimum to write a WPS as above?
>
> Regards
> sajeev
>
> ________________________________
>
> Looking for last minute shopping deals? Find them fast with Yahoo! Search.
> >
>
--~--~---------~--~----~------------~-------~--~----~
To post to this group, send email to materials-welding@googlegroups.com
To unsubscribe from this group, send email to materials-welding-unsubscribe@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.
-~----------~----~----~----~------~----~------~--~---

Friday, March 21, 2008

[MW:682] Re: Section IX QW 200.4(b)

Dear Sanjeev

As per QW200.4(b) it is mandatory that your GTAW PQR thickness should
be minimum 13 mm. than you use GTAW as root as qualified in PQR.

Regards
Jitendra

On Fri, Mar 21, 2008 at 2:11 PM, sajeev c.g <sajeevmech@yahoo.com> wrote:
> Dear all,
>
> I have to prepare a WPS from two PQR's as per section IX.
> PQR 1 qualified in 10mm coupon full GTAW
> PQR 2 qualified in 40mm coupon SMAW+SAW(20mm deposit each)
>
> Can i write a WPS to weld GTAW (root) + SMAW+SAW?
> As per QW200.4(b) is it mandatory that the PQR 1 will be qualified in 13mm
> minimum to write a WPS as above?
>
> Regards
> sajeev
>
> ________________________________
>
> Looking for last minute shopping deals? Find them fast with Yahoo! Search.
> >
>

[MW:681] Section IX QW 200.4(b)

Dear all,

I have to prepare a WPS from two PQR's as per section IX.

PQR 1 qualified in 10mm coupon full GTAW

PQR 2 qualified in 40mm coupon SMAW+SAW(20mm deposit each)

Can i write a WPS to weld GTAW (root) + SMAW+SAW?

As per QW200.4(b) is it mandatory that the PQR 1 will be qualified in 13mm minimum to write a WPS as above?

Regards

sajeev

Thursday, March 20, 2008

[MW:680] duplex stainless-steel castings ASTM A890 per ASTM A890 Vs.ASTM A995

QUESTION:
Our piping specification requires that duplex stainless-steel castings be supplied per ASTM A890. A valve company took exception, and indicated that duplex valve bodies and bonnets would be supplied per ASTM A995. What is the difference between these specifications?

ANSWER:
ASTM A890 "Castings, Iron-Chromium-Nickel-Molybdenum Corrosion Resistant, Duplex (Austenite-Ferrite) for General Application" was released in 1988, the first ASTM standard that covered the modern duplex stainless-steel casting grades. As such, many piping specifications include references to ASTM A890 and its various duplex grades for piping components such as valves. Unfortunately, ASTM A890 has some shortcomings when used to purchase pressure-retaining components.

ASTM A890 references ASTM A781 "Castings, Steel and Alloy, Common Requirements, for General Industrial Use" for coverage of general requirements. ASTM A781 refers back to the individual product specification (A890) for tensile test requirements. ASTM A890 lists tensile property requirements, but does not require that the tensile tests actually be performed. Tensile tests are only required if Supplementary Requirement S32 is specified on the purchase order. In order to obtain a test report showing the actual chemistry and tensile test results, Supplementary Requirement S12 must also be imposed. Marking of heat numbers on castings is not required unless specified separately on the purchase order.

In 1998, ASTM released ASTM A995 "Standard Specification for Castings, Austenitic-Ferritic (Duplex) Stainless Steel, for Pressure-Containing Parts." At first glance, this specification appears very similar to A890. Any casting that meets A995 also meets A890. However, A995 imposes some additional requirements:

§ A995 includes fewer grades (1B, 2A, 3A, 4A, 5A, and 6A) than A890 (1A, 1B, 1C, 2A, 3A, 4A, 5A, and 6A), and the composition limits for the common alloys are listed with higher precision in many cases.

§ A995 requires that weld repairs be made using procedures and welders qualified per ASTM A488. A890 does not.

§ A995 provides a definition for major weld repairs and requires post-weld heat treatment (i.e., re-solution heat treatment) after all major weld repairs. A890 only requires post-weld heat treatment if Supplementary Requirement S33 is imposed on the purchase order.

§ A995 references ASTM A703 "Steel Castings, General Requirements, for Pressure-Containing Parts," instead of A781. A703 imposes several other requirements that are not included in A890 nor A781:

§ Each heat of material must be tensile tested.

§ Each casting must be hydrostatically tested.

§ Each casting must be marked with a heat number or with a serial number traceable to a heat number.

§ Certification must be provided listing the chemical analysis of the heat and the mechanical property test results.

In 2000, ASME issued SA995, which is identical to the 1998 revision of ASTM A995. ASTM A995 was reapproved without changes in 2003.

Once a specification has been adopted by ASME, a progression begins toward implementation of the included grades in various portions of ASME codes:

§ P-numbers are assigned in Section IX of the ASME Boiler and Pressure Vessel Code.

§ Mechanical properties vs. temperature, allowable stresses vs. temperature, and maximum temperature limits are included in the appropriate tables in Section II Part D of the ASME Boiler and Pressure Vessel Code.

The material may be adopted in ASME codes for specific products or applications, including:

§ ASME B16.34 Valves - Flanged, Threaded, and Welding-End

§ ASME B16.5 Pipe Flanges and Flanged Fittings: NPS ½ Through NPS 24

§ ASME B31.1 Power Piping

§ ASME B31.3 Process Piping

Whether and when a particular specification/material is included in any of the above codes depends on numerous factors. However, one thing is clear-materials are not added in these codes unless the parent specification requires tensile testing to ensure that the product being supplied actually meets the minimum mechanical properties upon which the design is based. For this reason alone, many specifications that don't require actual tensile testing are not represented in these codes. Examples include ASTM A276 stainless-steel bar and ASTM A743 and A744 castings. A890 grades will not be added for the same reason. When duplex stainless steels are added to these codes, the parent specification will be A995/SA995.

This is the reason why valve companies prefer to specify duplex stainless steels per A995/SA995 for control valves. Customer piping specifications that specify duplex stainless steels per ASTM A890 are essentially out of date, and should be revised to reference ASTM A995 or ASME SA995 for these materials.

Source: valve magazine Winter 2005

Materials & Welding

Saturday, March 29, 2008

[MW:701] Re: 698] Re: PMI TESTING OF SS 304L

[MW:700] pabitra das wants to chat

Thursday, March 27, 2008

[MW:699] RE: 698] Re: PMI TESTING OF SS 304L

Wednesday, March 26, 2008

[MW:698] Re: PMI TESTING OF SS 304L

[MW:697] Re: PMI TESTING OF SS 304L

Tuesday, March 25, 2008

[MW:696] Re: 683] Re: Section IX QW 200.4(b)

[MW:695] Re: 683] Re: Section IX QW 200.4(b)

[MW:693] Re: 683] Re: Section IX QW 200.4(b)

[MW:694] Re: 688] Re: PMI TESTING OF SS 304L

[MW:692] Re: 688] Re: PMI TESTING OF SS 304L

Monday, March 24, 2008

[MW:691] Re: 688] Re: PMI TESTING OF SS 304L

[MW:690] Re: 688] Re: PMI TESTING OF SS 304L

[MW:689] RE: 688] Re: PMI TESTING OF SS 304L

[MW:687] Re: PMI TESTING OF SS 304L

[MW:688] Re: PMI TESTING OF SS 304L

[MW:686] PMI TESTING OF SS 304L

[MW:685] RE: 683] Re: Section IX QW 200.4(b)

Saturday, March 22, 2008

[MW:684] PQR

[MW:683] Re: Section IX QW 200.4(b)

Friday, March 21, 2008

[MW:682] Re: Section IX QW 200.4(b)

[MW:681] Section IX QW 200.4(b)

Thursday, March 20, 2008

[MW:680] duplex stainless-steel castings ASTM A890 per ASTM A890 Vs.ASTM A995

[MW:35346] Cast-iron welding

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