Devang,
What welding exactly you want to do here, if you could elaborate on that, the members will be in a better position to answer...
Rgds,
Shashank
--- On Mon, 29/6/09, Devang Patel <devangp@inoxindia.com> wrote:
From: Devang Patel <devangp@inoxindia.com>
Subject: [MW:2570] SA-276 type 316 Bar
To: materials-welding@googlegroups.com
Date: Monday, 29 June, 2009, 11:21 AM
We have a rod of SA-276 TP316 with Condition S, Some of my senior told, welding is not permitted on this rod but i have not found any restriction in ASME code. Can anyone know about it?
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the word hydraulic is ordinary language, code always specify as hydrostatic. the word static means the liquid is in static state, thats what my understanding is do u ever come across hydro dynamic test? On Jun 29, 10:38 am, prashant pansare <prashantpan...@yahoo.co.in>
wrote:
> Dear friends ,
> What is diff. bet' n hydraulic & hydrostatic?
> psp
>
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To weld SS 316 you should use matching SS consumable. It it is not a "L" grade material like SS 316L , you can use E316 for SMAW / ER 316 for GAW , & if the base material is "L" grade like SS 316L, you have to use E316L or ER316L, but even in both the cases you can use E316L / ER316L consumable. Pre-heating & PWHT is not required for Austenetic Stainless steel ( SS 316 ). But if your working place is full of moisture or in rain condition, you can apply heat just to remove the moisture from the surface of the joint to be welded. Regards,
On Mon, Jun 29, 2009 at 12:27 PM, sandy kumar <sandy001987@gmail.com> wrote: Can any one tell me how to weld SS 316 to SS316 ?
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Malaysia
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Please respond to what code depending on the code that will range from every project they need to be required to every 5 years to never expired, Original Message:
-----------------
From: sandy kumar sandy001987@gmail.com
Date: Mon, 29 Jun 2009 09:58:09 +0530
To: materials-welding@googlegroups.com
Subject: [MW:2565] lifetime of a qualified WPS
Can anyone tell whats is the validity period of a qualified WPS?
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Dear Sir, Please refer QW100.3 On 6/29/09, kataiah@bilfal.com <kataiah@bilfal.com> wrote:
> Dear Mr.Raghuram
>
> If code changes after some years & there is a change in
> essential/supplementary essential variables, the wps will be valid.
>
> regards
>
> P.Kataiah
>
>
> ----- Forwarded by Kataiah/BelleliSA on 29/06/2009 07:44 ص -----
>
>
> "BR" <raghurambathula@gmail.com>
> Sent by: materials-welding@googlegroups.com
> 29/06/2009 07:37 ص
> Please respond to materials-welding
>
> To: "Materials & Welding" <materials-welding@googlegroups.com>
> cc:
> Subject: [MW:2566] Re: lifetime of a qualified WPS
>
>
>
> None, yes its forever as long as it represents your production weld.
> However changes may be made in the nonessential variables of a WPS to
> suit production requirements without requalification provided such
> changes are documented with respect to the essential, nonessential,
> and, when required, supplementary essential variables for each
> process. This may be by amendment to the WPS or by use of a new WPS.
> Changes in essential or supplementary essential (when required)
> variables require requalification of the WPS (new or additional PQRs
> to support the change in essential or
> supplementary essential variables).
>
> On Jun 29, 8:28 am, sandy kumar <sandy001...@gmail.com> wrote:
>> Can anyone tell whats is the validity period of a qualified WPS?
>
>
> >
>
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----------------------
Hareesh K V
+91-9447625012
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Dear Devang, Welding on 276 Type 410 only pbm It will create crack. A276 Type 316 We didnt faced any pbm. ( We have used this material in Valves.) On Mon, Jun 29, 2009 at 12:14 PM, Shashank Vagal <nach_sam@yahoo.com> wrote: Devang,
What welding exactly you want to do here, if you could elaborate on that, the members will be in a better position to answer...
Rgds,
Shashank
--- On Mon, 29/6/09, Devang Patel <devangp@inoxindia.com> wrote:
From: Devang Patel <devangp@inoxindia.com>
Subject: [MW:2570] SA-276 type 316 Bar
To: materials-welding@googlegroups.com
Date: Monday, 29 June, 2009, 11:21 AM We have a rod of SA-276 TP316 with Condition S, Some of my senior told, welding is not permitted on this rod but i have not found any restriction in ASME code. Can anyone know about it?
|
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Devang,
What welding exactly you want to do here, if you could elaborate on that, the members will be in a better position to answer...
Rgds,
Shashank
--- On Mon, 29/6/09, Devang Patel <devangp@inoxindia.com> wrote:
From: Devang Patel <devangp@inoxindia.com>
Subject: [MW:2570] SA-276 type 316 Bar
To: materials-welding@googlegroups.com
Date: Monday, 29 June, 2009, 11:21 AM
We have a rod of SA-276 TP316 with Condition S, Some of my senior told, welding is not permitted on this rod but i have not found any restriction in ASME code. Can anyone know about it?
|
Love Cricket? Check out live scores, photos, video highlights and more. Click here --~--~---------~--~----~------------~-------~--~----~ 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. -~----------~----~----~----~------~----~------~--~---
Dear friends , What is diff. bet' n hydraulic & hydrostatic? psp |
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Hi! I could not open the file but For lap joint when two strips are to be joined some time vacuum brazing are carried with thin sheath is used as a filler , and this passes peel test Regards Hegde From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Sachin Joshi
Sent: Monday, June 29, 2009 10:16 AM
To: materials-welding@googlegroups.com
Subject: [MW:2567] Help Needed in Brazing | Dear Sir,
We are having some difficulty in coming to common grounds with our customer on interpretation of ASME Section 9 qualification requirements for Copper to Copper lap joint with filler metal. I will try to explain you the entire case for your perusal and advice.
We are in the business of large motors for cement plants, generators and similar applications. The customer asks for qualification of operators in welding and brazing as per ASME section 9. The entire details of the joint are as attached in the document.
As per our interpretation of code the code asks for Tension test, Peel test and Section test. We get the tests done in approved authorised laboratories.
In all the tests the trend is such that the brazing coupons are passing in tensile tests and sectioning tests.
But the Peel test coupons does not have consistency in qualifying as per norms. As per the qualification criteria the test are basically visual inspection and have some inbuilt subjectivity hence the dispute keeps on recurring about the consistency of qualification.
In the clause QB-141.4 its is suggested that if the filler metal used has a greater strength than the base metal strength ( in out case UTS of base metal is 205 N/sq.mm, and filler metal UST is 250 N/sq mm) then the Peel test can be replaced with sectioning test. The customer is not agreeable as he feels that we are finding escape route by pointing to this clause.
Can you please throw some light on this issue with technical details of this substitution of peel test with sectioning test.
Kindly revert.
Regards,
Sachin Joshi | --~--~---------~--~----~------------~-------~--~----~ 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. -~----------~----~----~----~------~----~------~--~---
We have a rod of SA-276 TP316 with Condition S, Some of my senior told, welding is not permitted on this rod but i have not found any restriction in ASME code. Can anyone know about it? --~--~---------~--~----~------------~-------~--~----~ 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. -~----------~----~----~----~------~----~------~--~---
Dear Mr.Raghuram If code changes after some years & there is a change in essential/supplementary essential variables, the wps will be valid. regards P.Kataiah
----- Forwarded by Kataiah/BelleliSA on 29/06/2009 07:44 ص ----- | | "BR" <raghurambathula@gmail.com>
Sent by: materials-welding@googlegroups.com 29/06/2009 07:37 ص
Please respond to materials-welding |
To: "Materials & Welding" <materials-welding@googlegroups.com>
cc:
Subject: [MW:2566] Re: lifetime of a qualified WPS |
None, yes its forever as long as it represents your production weld.
However changes may be made in the nonessential variables of a WPS to
suit production requirements without requalification provided such
changes are documented with respect to the essential, nonessential,
and, when required, supplementary essential variables for each
process. This may be by amendment to the WPS or by use of a new WPS.
Changes in essential or supplementary essential (when required)
variables require requalification of the WPS (new or additional PQRs
to support the change in essential or
supplementary essential variables).
On Jun 29, 8:28 am, sandy kumar <sandy001...@gmail.com> wrote:
> Can anyone tell whats is the validity period of a qualified WPS?
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These steels are produced with accelerated/controlled cooling to get the improved mechanical properties, particularly toughness. due to this inherent charecterstic of TMCP process, these can't be formed at elevated temperatures. check the link for more info about the process. http://www.leonghuat.com/articles/Thermomechanical%20Control%20Process.htmASME SA 841 is TMCP steel On Jun 27, 3:35 pm, Arjan van Vessum <vess_kiw...@hotmail.com> wrote:
> >580 degrees its mechanical properties can/will decrease
>
> Date: Thu, 25 Jun 2009 04:30:36 -0700
> From: asghari...@rocketmail.com
> Subject: [MW:2547] thermo mechanical steel
> To: materials-welding@googlegroups.com
>
> hi
> why isn't allowed heat treating in the range(590+/- 10) for TM (THERMO MECHANICAL) STEEAL?
> rjd.
>
> _________________________________________________________________
> Nieuws, entertainment en de laatste roddels. Je vind het op MSN.nl!http://nl.msn.com/
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Dear Sir,
We are having some difficulty in coming to common grounds with our customer on interpretation of ASME Section 9 qualification requirements for Copper to Copper lap joint with filler metal. I will try to explain you the entire case for your perusal and advice.
We are in the business of large motors for cement plants, generators and similar applications. The customer asks for qualification of operators in welding and brazing as per ASME section 9. The entire details of the joint are as attached in the document.
As per our interpretation of code the code asks for Tension test, Peel test and Section test. We get the tests done in approved authorised laboratories.
In all the tests the trend is such that the brazing coupons are passing in tensile tests and sectioning tests.
But the Peel test coupons does not have consistency in qualifying as per norms. As per the qualification criteria the test are basically visual inspection and have some inbuilt subjectivity hence the dispute keeps on recurring about the consistency of qualification.
In the clause QB-141.4 its is suggested that if the filler metal used has a greater strength than the base metal strength ( in out case UTS of base metal is 205 N/sq.mm, and filler metal UST is 250 N/sq mm) then the Peel test can be replaced with sectioning test. The customer is not agreeable as he feels that we are finding escape route by pointing to this clause.
Can you please throw some light on this issue with technical details of this substitution of peel test with sectioning test.
Kindly revert.
Regards,
Sachin Joshi |
None, yes its forever as long as it represents your production weld. However changes may be made in the nonessential variables of a WPS to suit production requirements without requalification provided such changes are documented with respect to the essential, nonessential, and, when required, supplementary essential variables for each process. This may be by amendment to the WPS or by use of a new WPS. Changes in essential or supplementary essential (when required) variables require requalification of the WPS (new or additional PQRs to support the change in essential or supplementary essential variables). On Jun 29, 8:28 am, sandy kumar <sandy001...@gmail.com> wrote:
> Can anyone tell whats is the validity period of a qualified WPS?
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Yes, The paint inspection courses conducted by SSPC or NACE are honoured in Gulf countries but I would suggest to go for NACE as it is more evolved. I am sorry but that is my personal opinion and no offense towards SSPC as a society or technological expertise. -Sachin -----Original Message----- From: andiappan pillai < sandiappan@yahoo.co.in> Reply-to: materials-welding@googlegroups.com To: materials-welding@googlegroups.com Subject: [MW:2560] pci course Date: Sun, 28 Jun 2009 06:31:51 +0530 (IST) | Does any one knows about , paint coating inspection conducted by sspc ,usa ? is it honored by gulf countries?. thanks in advance S.A.Pillai. |
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Can anyone tell whats is the validity period of a qualified WPS? --~--~---------~--~----~------------~-------~--~----~ 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. -~----------~----~----~----~------~----~------~--~---
Can any one tell me how to weld SS 316 to SS316 ? --~--~---------~--~----~------------~-------~--~----~ 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. -~----------~----~----~----~------~----~------~--~---
you are right, rajagopal arun
On Sun, Jun 28, 2009 at 11:28 AM, rajagopal kannan <rajagopal.kannan@gmail.com> wrote: Hi, That is if you do heat treatment of your PQR Test coupon to 80 minutes soaking time, then you can write a WPS for production welds to the maximum of 100 minutes soaking time. Thanks, K.Rajagopal
On 6/27/09, Jamie Welding <jamesmathewtrading@gmail.com> wrote:
Hi folks,
Can any one of u interpret the QW 407.3.
Especially the part PQR should be at least 80% aggregate times that in
production welds.
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Hi, That is if you do heat treatment of your PQR Test coupon to 80 minutes soaking time, then you can write a WPS for production welds to the maximum of 100 minutes soaking time. Thanks, K.Rajagopal
On 6/27/09, Jamie Welding <jamesmathewtrading@gmail.com> wrote:
Hi folks,
Can any one of u interpret the QW 407.3.
Especially the part PQR should be at least 80% aggregate times that in
production welds.
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Hi folks, Can any one of u interpret the QW 407.3. Especially the part PQR should be at least 80% aggregate times that in production welds. --~--~---------~--~----~------------~-------~--~----~
To post to this group, send email to materials-welding@googlegroups.com
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>580 degrees its mechanical properties can/will decrease
Date: Thu, 25 Jun 2009 04:30:36 -0700 From: asghariali@rocketmail.com Subject: [MW:2547] thermo mechanical steel To: materials-welding@googlegroups.com hi
why isn't allowed heat treating in the range(590+/- 10) for TM (THERMO MECHANICAL) STEEAL?
rjd.
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You can use existing WPQR, as you already mentioned you have to stay within qualified ranges (positions). > Date: Thu, 25 Jun 2009 08:55:53 -0700 > Subject: [MW:2554] Re: 2550] D1.1 - WPS - Semi-Auto vs Auto - Need new PQR/WPS > From: JRupert@Dresser-Rand.com > To: materials-welding@googlegroups.com > > > Any issues with welder vs welding operator qualification? I'm less > familiar with D1.1 vs ASME. > > On Jun 25, 9:34 am, "Armstrong, Joel" <JoelArmstr...@letu.edu> wrote: > > Yes, we've done the same thing here with the approval of ABS and no need to requalify. > > > > ________________________________ > > > > From: materials-welding@googlegroups.com on behalf of ikaria73 > > Sent: Thu 6/25/2009 8:27 AM > > To: Materials & Welding > > Subject: [MW:2550] D1.1 - WPS - Semi-Auto vs Auto - Need new PQR/WPS > > > > Hello, > > Is a new PQR required if the process is changed from semi-automatic to > > automatic? I am welding piles and would like to use a BUG-O system > > with FCAW-GS and already have a PQR/WPS with FCAW-GS semi-automatic. > > Can I use the existing PQR to create a new WPS as long as I stay > > within the procedures? > > > > Regards > > > > winmail.dat > > 5KViewDownload > > --~--~---------~--~----~------------~-------~--~----~ 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. -~----------~----~----~----~------~----~------~--~---
If its not ASME you can carry out vacuum box test, generally its being done for tanks.
From: harish katesia <harish.katesia@gmail.com>
To: materials-welding@googlegroups.com
Sent: Thursday, 25 June, 2009 8:15:26 PM
Subject: [MW:2548] Re: Does any body knows about water tight weld.
Dear sir, I am talking for the product of hydro-power plant area, The component has got bowl kind of shape.The size of the component is 6 meter diameter & 4 meter in height. The design has asked to check with 100% U.T. & in addition to this, needs to be check for water tightness. So for such a big size component, filling of water is not feasible, so does ASME codes has any provision to check for water tightness except to fill with water Hydro test also can not be done.
On Thu, Jun 25, 2009 at 3:56 PM, Raghuram Bathula <raghurambathula@gmail.com> wrote: fill with water, if it doesn't leak its water tight!! ASME has requirements for hydro test depends on design conditions and the applicable code.
It is necessary to specify the type of item and applicable code, design conditions etc, to have appropriate answer. On Thu, Jun 25, 2009 at 2:21 PM, harish katesia <harish.katesia@gmail.com> wrote:
Dear all, Can anybody tell me what is water-tight weld & how to ensure this. Do we have any standards for this or does ASME talks for this.?
--
Regards,
Harish katesia
Mob no.09601551774
-- Regards, Harish katesia Mob no.09601551774
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