Materials & Welding

Mr.Farook...                              I do not know by what meaning you are talking about WRI.you already told that you did not hear about the WRI.It is one of the best welding school  in India.The excellent faculties. very good Interaction and learning experience etc.Well equipped laboratories and updated workshop facilities etc etc...As a beginner it will be very much helpful for him to learn the subject from the field masters.The course itself designed for two weeks period,so before doing the international certifications it will give him a lot of knowledge and confident in the subject. with kind regards, Jawahar Balasubramanian. --- On Tue, 8/31/10, Mohamed Farook <asfaruk@gmail.com> wrote: From: Mohamed Farook <asfaruk@gmail.com> Subject: Re: [MW:6806] Certified Welding Inspector Course -WRI(Welding Research Institute Tric...

Hi Shashank,   Thanks for attachment. I found on it the T23 filler metal for 2.25Cr-1Mo. I will make a comparison between it and others that Pgoswami has suggested.   Thanks for your interest Shashank.   L. Carlos Flores Piping Team Leader Oficina:(993) 310 8100 Ext. 106 Celular:(993) 250 6610   Date: Tue, 31 Aug 2010 05:24:01 +0530 From: nach_sam@yahoo.com Subject: Re: [MW:6791] A 217 Gr WC9 To: materials-welding@googlegroups.com Hi Luis, I hope the attached Bohler data sheet will be useful. Please let me know if you found in it what you looked for. Thanks, Shashank Vagal --- On Mon, 30/8/10, Luis Carlos <carlosflores126@hotmail.com> wrote: From: Luis Carlos <carlosflores126@hotmail.com> Subject: [MW:6788] A 217 Gr WC9 To: "Materials & Welding" <materials-welding@googlegroups.com> Date: Monday, 30 August, 2010, 10:06 PM Hello, Could someone tell me please what is the best filler metal to make a buttering over A-217 Gr WC9 base...

Hi Pgoswami,   There is no other material to be welded.   We are working over Turbine's casing and we found those damages you can see on attached pictures.   By metalography we know they were fabricated on A-216 WCB and A-217 WC9   We appreciate your comments and suggestions L. Carlos Flores Piping Team Leader Oficina:(993) 310 8100 Ext. 106 Celular:(993) 250 6610   From: pgoswami@quickclic.net To: materials-welding@googlegroups.com Subject: [MW:6789] MW: 6788- A 217 Gr WC9 Date: Mon, 30 Aug 2010 22:35:33 -0400 Hi Luis, The material is 2.25Cr-1Mo steel (P 5A Gr 1)  in the shape of casting. What' the other material to be welded ? A rule of thumb could be :- A 217 Gr WC9 to P4 material-- Use P4 matching electrode for buttering, e.g-E 8018/16 B2 or E-7018B2 or GTAW filler of equivalent specification. You may use E-9018B3 or 8018B3L also, in that case buttering sequence may not be needed.   A 217 Gr WC9 to S.S...

im sorry to say like this guys... who told u that WRI CWI certificate has no value.. i got very gud offers with this certificate.. but for abroad CSWIP is valuable but knowledge wise both are same..If u want to get a job offer in abroad no doubt cswip is advisable.. In india WRI certificate is enough..infact cswip has no value in india :) On Tue, Aug 31, 2010 at 6:40 PM, Mohamed Farook < asfaruk@gmail.com > wrote: Dear Anand,   So far i didnt heard about WRI.. what Naushand told is correct. Go for CSWIP3.1 or AWS...if you want to do that course in india, then my suggestion is CSWIP 3.1  dont go for AWS \ because now a days even a people dont have experience also can pass this exam at india.. no value for that too...   All the best,   asfaruk On Tue, Aug 31, 2010 at 6:53 PM, Noushad cp < ncp.clt@gmail.com > wrote:   Pushpraj Anand,     Deftly you will get very good knowledge after Completing the course.better you go for CSWIP or AWS after some experience.W...

you can do as per iso 15614-1 or -2. 2010/8/31 Eng/ Mostafa Kamel Hussein < mkh_200@yahoo.com > Dear, I hope to the required tests need for the welder performance qualification (WPQ) according to the EN code and i hope to know the name of this code? SaSa -- 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. -- regards, Harish. -- 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...

For ferritic materials (carbon steel, alloy steel, stainless steel) EN 287-1, Approval testing of welders – Fusion welding – Part 1:  Steels.   From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Eng/ Mostafa Kamel Hussein Sent: Tuesday, August 31, 2010 3:37 AM To: materials-welding@googlegroups.com Subject: [MW:6805] Required Tests   Dear, I hope to the required tests need for the welder performance qualification (WPQ) according to the EN code and i hope to know the name of this code? SaSa   -- 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...

Dear members   Can anybody suggest what are the special test requirements for performing PQR on a 6"dia, 8 mm thk. SS 304 pipe using TGX-308L flux cored filler rod for root run. Subsequent passes are by conventional TIG wire followed by Arc welding.   Regards Hrishi -- 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 Anand,   So far i didnt heard about WRI.. what Naushand told is correct. Go for CSWIP3.1 or AWS...if you want to do that course in india, then my suggestion is CSWIP 3.1  dont go for AWS \ because now a days even a people dont have experience also can pass this exam at india.. no value for that too...   All the best,   asfaruk On Tue, Aug 31, 2010 at 6:53 PM, Noushad cp < ncp.clt@gmail.com > wrote:   Pushpraj Anand,     Deftly you will get very good knowledge after Completing the course.better you go for CSWIP or AWS after some experience.WRI certificate have no value in abroad.     Noushad Doha-Qatar   On 8/31/10, Pushpraj Anand < pushprajanand34@gmail.com > wrote:     This Welding Research Institute  Thrichy -CWI course is beneficial for Welding Inspection personals ? Can I get good job after completion of this course .   Kindly suggest me. -- Regards, Pushpraj Anand Contact No: +919234655254   -- To post to this group, send email to ...

  Pushpraj Anand,     Deftly you will get very good knowledge after Completing the course.better you go for CSWIP or AWS after some experience.WRI certificate have no value in abroad.     Noushad Doha-Qatar   On 8/31/10, Pushpraj Anand < pushprajanand34@gmail.com > wrote:     This Welding Research Institute  Thrichy -CWI course is beneficial for Welding Inspection personals ? Can I get good job after completion of this course .   Kindly suggest me. -- Regards, Pushpraj Anand Contact No: +919234655254   -- 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. -- To...

Dear All, It is very good thought by member asking for WPS without PWHT for P91 Material , In fact this materials is very very critical with respect to service as well as welding point is concerned, This material once you start welding ,you can not stop and post heating is required to be used till you start stress relieving other wise you may not acheive  the hardness and microstructure desired. In my previous project we had arrangement for alternative power source such as desiel welding generator as standby in case main power supply failure to avoid interruption in contnuity of welding . I do not think you have solution for the issue . Regards, ----- Original Message ----- From: pgoswami To: materials-welding@googlegroups.com Sent: Tue, 31 Aug 2010 03:57:52 +0530 (IST) Subject: [MW:6792] MW: 6787- RE: 6769] Any WPS for P91 Material without PWHT   Dear Faruk,   NO CODE WILL ALLOW  P-91 STEEL TO BE WELDED WITHOUT PWHT .   Further to ...

    This Welding Research Institute  Thrichy -CWI course is beneficial for Welding Inspection personals ? Can I get good job after completion of this course .   Kindly suggest me. -- Regards, Pushpraj Anand Contact No: +919234655254 -- 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.

01.The holes closed is a right method? If you have made a proper bevel and welded with GTAW root, could not be a problem. 02.what will be the strength in future working conditions? You may provide an additional pad plate on top of it, best alternative could be if space permits provide a nozzle with blind flange. 03.what will be the suitable inspection method at this condition? Check with remote visual (e.g. video scope) for full penetration. if you are not sure of weld quality better to remove cap, inspect the patch  and re weld the cap. 04.finally ,can accept this or not? Acceptance and salvage depends on your construction code and client’s./ AI’s acceptance.   From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Karthik Sent: Tuesday, August 31, 2010 2:51 PM To: materials-welding@googlegroups.com Subject: [MW:6799] wrong holes on header closed by welding-reg   Dear ...

Dear all, in our current job of prefurnace,holes(2 nos.on end of the both side of header) specified in the drawing was wrong.But it was found only after the holes were drilled. Specification of header pipe as follows. Material - A106 Gr.B Dia - 6" Thk. - 7.11mm Hole dia - 74 Design Pressure - 16bar MAWT - 190degree celsius After that,it was noticed to our engineering departmmment and they revised the drawing and asked our production to close the wrong holes by attach the same grade of material and weld.Now the repair has finished as said above. But on this hole closed area, we cannot do UT (because of thickness limitation) also RT cannot be done because of the adjacent tubes and elbows.Even we cannot see the penetration of the weld due to endplates were closed on both sides.just we did PT only and there is no defects. Pls.give your suggestion on the below questions.   01.The holes closed is a right method? 02.what will be the strength in future working conditions...

Dear, I hope to the required tests need for the welder performance qualification (WPQ) according to the EN code and i hope to know the name of this code? SaSa

Hi, 01.Diffrence: Butane is not a highly toxic gas. Therefore, it can be safely, properly stored inside with  little worry. You can also extract approximately 12 percent more energy per liter from butane than you can propane, which means that, liter for liter, you will get more mileage out of butane. Butane is also a cheaper gas to purchase, though propane is more widely available . (extract from the article) 02.For WPS - Change in the type of preheat/type of gas is not an essential variable.Some customer specifications may restrict while you do on site.So pls.refer to project spec.if you work on site. Thanks & Regards,   (karthik) Karthikeyan.S QA/QC Manager Getabec Energy Co.,Ltd. 379,Moo6,Soi8,Nikhomphatana, Rayong-21180, Thailand. Phone: 0066 38 897035-8 (Off) Fax: 0066 38 897034 Hand Phone: 0066 892512282 --- On Tue, 8/31/10, eduardocalva@hotmail.com <eduardocalva@hotmail.com> wrote: From: eduardocalva@hotmail.com <eduardocalva@hotmail.com>...

No you can use either John du Plessis Technology Manager Tel: +27 (11) 298 2100 Tel: +27 (11) 298 2103 (Direct) Fax: +27 (11) 836 6014 Mobile:+27 82 883 4970 www.saiw.co.za This email and any files transmitted with it are confidential and may be legally privileged. They are intended solely for the use of the individual or entity to whom they are addressed. Access to this e-mail by anyone else is unauthorised, and any disclosure, copying, distribution or other use of this e-mail is prohibited and may be unlawful. We will not under any circumstances have any responsibility or liability arising out of or in connection with any unauthorised use of this e-mail. If you have received this email in error please notify the sender before deleting it. -----Original Message----- From: materials-welding@googlegroups.com [mailto: materials-welding@googlegroups.com ] On Behalf Of eduardocalva@hotmail.com Sent: 30 August 2010 08:31 PM To: Materials & Welding Subject: [MW:6794] Propane or butan...

Nothing wrong in it, gas used for heating is not a variable to consider. sent from my handheld -----Original Message----- From: eduardocalva@hotmail.com Sent: 31/08/2010 12:00:40 am Subject: [MW:6794] Propane or butane to preheat Could all of you tell me the difference between preheat with propane and butane?, If a WPS is qualified by preheating with propane but butane is used in production welds is wrong? -- 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.

Hi Luis, The material is 2.25Cr-1Mo steel (P 5A Gr 1)  in the shape of casting. What' the other material to be welded ? A rule of thumb could be :- A 217 Gr WC9 to P4 material-- Use P4 matching electrode for buttering, e.g-E 8018/16 B2 or E-7018B2 or GTAW filler of equivalent specification. You may use E-9018B3 or 8018B3L also, in that case buttering sequence may not be needed.   A 217 Gr WC9 to S.S- Use Inconel-182(E NiCrFe-3) or matching GTAW filler(ERNiCr-3) for buttering.PWHT the buttered area and   P5 steel as recommended by design code followed by welding to P8 without further PWHT. Note the above guidelines are only generalized rule. Buttering sequences and welding electrodes to be used would depend on what material gets welded to A 217 Gr WC9 and the code or specification requirements.   Note the  precautions and welding parameters to be followed for buttering shall be identical to a groove ...

Dear Ravindra Use capacitor discharge unit to attach TC to job to measure metal temp Regards Hegde Sent from my BlackBerry® smartphone from !DEA From: "Ravinder Sharma" <ravinder@isgec.com> Sender: materials-welding@googlegroups.com Date: Mon, 30 Aug 2010 18:05:49 +0530 To: <materials-welding@googlegroups.com> ReplyTo: materials-welding@googlegroups.com Subject: [MW:6786] P91_SR     Hi friends , Can anybody suggest better way to attach thermocouple on P91 pipe for SR avoiding the welding, in non- calibrated furnace? Metal temperature to be measured directly.   Ravinder Sharma

  Hello Safa,   What's the piping design code ? I did not see any clause  in B-31.3, which calls for " allowable stress values should be chosen in accordance with the hydro test temperature which should be lower because of excessive PWHT".  I may be wrong also ?   If you're fabricating P-91 spool then 730 0 C is not a high or very excessive temperature. This temperature or more  is the recommended PWHT temperature  range for this steel. 730 0 C  or more typically is the annealing temperature   range for carbon steel. A test cap welded and heat treated repeatedly   in the annealing range will get softened considerably  and eventually may not withstand the hydro test pressure. So as a rule of thumb they should not be reused more than once, unless there're documented proof of material properties.   Prior to reuse grind well  so as to  ensure previous weld metals and HAZs are complet...

  Hi Abby,   9Cr-1Mo-V, or P-91 steel should be of  fully  martensitic structure to impart the best mechanical properties as recommended by various literature and other established welding practices. However there had been  reported cases on formation of “delta ferrite” (termed as residual , as being unwanted) in this steel. Delta ferrite reduces toughness and creep resistance and may transform to “sigma phase” at high temperature .   By keeping Chromium Equivalent  (Cr eq ) below 10, the tendency to form delta ferrite is reduced . This number is not absolute, but provides a good guideline since elevated delta ferrite in this material reduces its toughness. Even materials with Cr eq between 10 and 12 may exhibit adequate toughness when the delta ferrite does not exceed five (5) percent.   ·          Cr eq = Cr + 6Si + 4Mo + 1.5W + 11V + 5Nb + 9Ti...

Hi Luis, I hope the attached Bohler data sheet will be useful. Please let me know if you found in it what you looked for. Thanks, Shashank Vagal --- On Mon, 30/8/10, Luis Carlos <carlosflores126@hotmail.com> wrote: From: Luis Carlos <carlosflores126@hotmail.com> Subject: [MW:6788] A 217 Gr WC9 To: "Materials & Welding" <materials-welding@googlegroups.com> Date: Monday, 30 August, 2010, 10:06 PM Hello, Could someone tell me please what is the best filler metal to make a buttering over A-217 Gr WC9 base metal. Are there special recommendations? I will appreciate answers! Luis Carlos -- 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 ...

  Dear Faruk,   NO CODE WILL ALLOW  P-91 STEEL TO BE WELDED WITHOUT PWHT .   Further to the recommendations of John, I would like to add a few points. P-91 is classified as P 5B Gr2 material in ASME Sec-IX. Often in the past people thought this steel to be “just another Chrome Moly” steel, till the “lessons were learnt”.  P-91 steel is never used in ambient temperature   or  typically   for   15psi   (very low)  design pressure ranges. This  material is recommended for design and pressure ranges where any mishap (minor or major) could cause human fatalities. If you do a google search with these keywords “ p-91 steel, failure,  fatalities”, you will see tons of articles.   The attached article would provide a good general guidance on P-91 steel and understand the need for PWHT.   Let me know if it helps.   Thanks.     Prad...