Materials & Welding

In my opinion "NO" , considering that these joints (Access platform, ladders) welded with Fillet only, and not with either CJP or PJP.   what is type of connection as defined in para 4.26, 4.27, 4.28 of AWS D1.1, is it CJP, PJP or fillet?. In this regard your designer is handy to clarify, what criteria used for designing these accessories, essentially in my opinion no designer will use para 2.24 to calculate Punching shear, LRFD etc for ladders, access platforms. This para 2.24 is applicable only for strength welds in statistically or cyclically loaded connections.   If you refer commentary C4.12 (2) (d)  states "Fillet weld TKY connections can be executed by welders having even lower level of qualification.........  ''   I am not using D1.1 on day to day hence I may be wrong in my views expressed here, however these can't be presumed to match the strength of members joined, but shall be checked by th...

AWS D1.1/D1.1M :2006 para 2.24.1.5 (2) , attached, states that classification criteria of TKY joints is based on punching load cases of brace to chord connection. Now the question is that: The given weld connection is tubular to tubular (TKY type) but does not fall under TKY classification based on punching load cases as para 2.24.1.5 . for example secondary and miscellaneous small structures like access platforms , stairs  etc fabricated by tubulars/ pipes. Do we need to treat these tubular to tubular joints as TKY joints and strictly welded by 6GR qualified welders?? -- Thanks Vinod R Upadhyay SMOE (a subsidiary of SEMBCORP MARINE) Batam Yard, QA/QC- TOTAL Project Mob:+62 815 1474 1550 --~--~---------~--~----~------------~-------~--~----~ 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...

Dear Prem, 1. Achieving FPW using single sided SAW is not possible unless you provide a backing strip, say ceramic backing strip that may be removed after welding 2. What is the dia of circ seam that you intend to weld - SAW wire dia will depend on that; typical angular offset of the wire wrt axis will be approx.3-5 degree on uphill side 3. if you have one square edge on the bevel, try to tilt the joint by 45degree so that the joint is in flat position. Alternatively give 22 degree bevel on both bevels 4. Root and Hotpass by GTAW  or SMAW root using E7010 / E7016 will be required in order to avoid burn through trust this helps out - will require trials to establish the correct parameters and bead placement   Cheers Date: Sat, 27 Sep 2008 16:59:31 +0000 From: prem_nautiyal@rediffmail.com To: materials-welding@googlegroups.com CC: ck@knm-group.com; R.Bathula@ticb.com Subject: [MW:1171] Re: 1150] SAW - For Single sided joint   Dear Sir We tried with various ro...

IF code and specification permit try Cellulose Electrode for root and followed by SAW. I feel single bevel 45 degree V s not recommended groove for SAW. End result of such groove may endup in having side wall lack of fusion. Suggest to go ahead with J type groove atleast. Regards Paresh On 9/22/08, Bathula Raghuram (Mumbai - PIPING) < R.Bathula@ticb.com > wrote: > Why not GTAW+SAW? Full SAW may not give you full penetration + defect free > in UT > > -----Original Message----- > From: materials-welding@googlegroups.com > [mailto: materials-welding@googlegroups.com ]On Behalf Of PREM SHANKARDUTT > NAUTIYAL > Sent: Saturday, September 20, 2008 4:36 PM > To: materials-welding@googlegroups.com > Subject: [MW:1150] SAW - For Single sided joint > > > > > Dear Friends > > We are trying to establish SAW for single sided joint. The base metal is > SA516Gr.70. The joint is 25mm thick. The joint is a single bevel groove but > joint w...

yes, provided all other  variables are same per QW353 -----Original Message----- From: SENTHILKUMAR SWAMINATHAN [mailto:skumarswami@yahoo.co.in] Sent: Sunday, September 28, 2008 8:23 AM To: Engineering Subject: Welder Qualification Hi, I have qualified a welder as per ASME Sec.IX. Matl: ASTM A 106 Gr B pipes, Dia 6"X13mm in 5G position. Process: SMAW Same welder can qualify to weld Dia 4"X7.2mm, filling and capping only by SMAW. All other condition are same. Give the reference also in ASME IX.   Regards, S.Senthilkumar   --~--~---------~--~----~------------~-------~--~----~ 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://materia...

Hi, I have qualified a welder as per ASME Sec.IX. Matl: ASTM A 106 Gr B pipes, Dia 6"X13mm in 5G position. Process: SMAW Same welder can qualify to weld Dia 4"X7.2mm, filling and capping only by SMAW. All other condition are same. Give the reference also in ASME IX.   Regards, S.Senthilkumar Add more friends to your messenger and enjoy! Invite them 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. -~----------~----~----~----~------~----~------~--~---

  Dear Sir We tried with various rootfaces upto 5mm and current upto 500-550A,zero gap, but no penetration achieved in root pass. Also we tried with various travel speeds but no uniform penetration achieved. I feel that only ceramic backing is the solution to weld single sided joints with SAW.. Regards Prem Nautiyal On Mon, 22 Sep 2008 Chaitanya Purohit wrote : >Dear Prem, > >To weld with just SAW from one side itself, you need to provide zero root >gap with 5mm root face at the beveled member. Use current 550-600 Amps and >try. I do not see any problem to get the root fusion. > >C. K. Purohit >General Manager - QA/QC/NDT/R&D >KNM Process Systems Sdn Bhd. >HP :    +616 3376448 >Phone : +603 89460338 >Fax  : +603 89460333 > > >-----Original Message----- > From: "Bathula Raghuram \(Mumbai - PIPING\)" <R.Bathula@ticb.com> >To: <materials-welding@googlegroups.com> ...

We are use to test (After re-beveling or cutting) before welding. The reason what I know, you may have some acceptable indication before cutting in that location. That indication may become open to surface. Ref. Below Procedure: This Procedure describes the Operations which will be used to carry-out repairs to damaged bevel ends on materials supplied for the Slug Catcher Works associated with the Offshore Gas Gathering System (OGGS) Project. The methods described in this Document are based upon the requirements of the Specifications and proven methods of achieving the required results. It must be appreciated, however, that these methods may be subject to revision or modification depending upon conditions and circumstances actually encountered. Bevel End Repairs Repairs to damaged bevels will be carried-out as detailed below: i) Minor damage to bevels will be repaired by grinding and/or filing. After affecting such a repair, the bevel will be checked visually by the QA/QC Re...

Dear Mr Gopalan, I too am interested in taking API exams. But its is scheduled next in Mar-09 only. I know 4 candidates who want to appear for API exam in Mar-2009. If some of you plan to reschedule your exams from Dec-08 to Mar-09, then we can definitely have a Test Center in Kuwait. Regards, Jignesh Patel On Mon, Sep 22, 2008 at 4:33 PM, sajeev c.g < sajeevmech@yahoo.com > wrote: > Dear Members, > > If any one from this group or your friends(only those from kuwait) were > planning to appear for API 510/570 exams to be held on Dec 3 2008, please > reply so that we can request API to provide a center in Kuwait. If the > attendies will be more than ten, then API will provide a exam center in > kuwait. Presently the nearest center to Kuwait is in Baharin. Now we four > candidates are applied for the exam. At least 10 candidates required to get > a test center at kuwait. > > Please reply those from Kuwait. > > Thanks and regards > > Sajee...

<<capture3.bmp>> <<capture4.bmp>> Source: Welding news 3: 2008 (A Polarit)

<<capture1.bmp>> <<capture2.bmp>> Source: Welding news 3: 2008 (A Polarit)

Source: Welding news 3: 2008 (A Polarit) --~--~---------~--~----~------------~-------~--~----~ 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. -~----------~----~----~----~------~----~------~--~---

Source: Welding news 3: 2008 (A Polarit) --~--~---------~--~----~------------~-------~--~----~ 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. -~----------~----~----~----~------~----~------~--~---

Source: Welding news 3: 2008 (AP) --~--~---------~--~----~------------~-------~--~----~ 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. -~----------~----~----~----~------~----~------~--~---

using ceramic backing strips may be helpful in this case. On Mon, Sep 22, 2008 at 9:36 PM, Bathula Raghuram (Mumbai - PIPING) < R.Bathula@ticb.com > wrote: Why  not GTAW+SAW?  Full SAW may not give you full penetration + defect free in UT -----Original Message----- From: materials-welding@googlegroups.com [mailto: materials-welding@googlegroups.com ] On Behalf Of PREM SHANKARDUTT NAUTIYAL Sent: Saturday, September 20, 2008 4:36 PM To: materials-welding@googlegroups.com Subject: [MW:1150] SAW - For Single sided joint Dear Friends We are trying to establish SAW for single sided joint. The base metal is SA516Gr.70. The joint is 25mm thick. The joint is a single bevel groove but joint with included angle of 45degree ( one member is vertical and there is bevel on other member).The final NDT is UT. Presently we are welding this joint with TIG+SMAW.The joint is circular hence ideal for SAW. Now we want to try to weld this sin...

Dear Lukas, I am afraid no one is able to understand the arrangement you are talking about. May be a hand sketch could help. Secondly, assuming, you are talking about a multiple connection on a header pipe. And all connections are like a cross tee connection. But as it looks you are using a plate fab. reducer to replace the conc. red. Definitely you have to consult your stress engineer if you are replacing with a diff. thickness item being a steam line. And if standard(bought out item) cross tee is not used and if you are going to use a reinforced stub-in/out connection, it is not 100% in acc. with B31.1 or 31.3 because it is a little complicated branch connection and the final verfication has to be in acc. with ASME IX as the branching is in opp. sides. With regards, Kannan <Nialel.Lukas@lglgold.com> Sent by: materials-welding@googlegroups.com 18/09/2008 02:49 Please respond to materials-welding@googlegroups.com To <materials-welding@googlegrou...

  We have used 650A,34V,450mm/min Travel speed. Result: slag removal little difficult, interbead LOF.. Please advise experts the correct welding parameters ??? On Mon, 22 Sep 2008 Muhammed Ibrahim wrote : >450-550 Amp, 30-32 V, 50cm per minute travel speed. > > > > >2008/9/19 PREM SHANKARDUTT NAUTIYAL <prem_nautiyal@rediffmail.com> > > > > > Dear Friends > > > > We are presently trying to use a local make 4.8mm dia SAW filler wire > > (EM12K)in place of 3.15mm dia. > > Can anyone tell us the correct welding parameters like: > > current, voltage, travel speed,etc for 4.8mm dia wire.. > > The base metal is SA516Gr.70, the thickness is 70mm. The joint is single > > bevel groove joint with no access from other side. Presently we weld first 2 > > passes with TIG, Then 2 passes of SMAW and then subsequent passes with > > SAW-3.15mm dia. Now we want to use 5.0mm dia SAW wi...

GTAW is a slow process and we want productivity as the jobs are repetitive. Also the joint is about 2 metres in dia. and about 12 metres of weld length in one job. We have 150 such jobs to manufacture. Hence we are thinking of direct SAW right from the root pass. Any suggestions on Direct SAW for single sided weld joint are welcome !!! Regards Prem Nautiyal  On Mon, 22 Sep 2008 Bathula Raghuram(Mumbai - PIPING) wrote : >Why  not GTAW+SAW?  Full SAW may not give you full penetration + defect free in UT > >-----Original Message----- > From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com]On Behalf Of PREM SHANKARDUTT NAUTIYAL >Sent: Saturday, September 20, 2008 4:36 PM >To: materials-welding@googlegroups.com >Subject: [MW:1150] SAW - For Single sided joint > > > > >Dear Friends > >We are trying to establish SAW for single sided joint. The base metal is SA516Gr.70. The joint is 25...

Dear Prem,   To weld with just SAW from one side itself, you need to provide zero root gap with 5mm root face at the beveled member. Use current 550-600 Amps and try. I do not see any problem to get the root fusion.   C. K. Purohit General Manager - QA/QC/NDT/R&D KNM Process Systems Sdn Bhd. HP :    +616 3376448 Phone : +603 89460338 Fax   : +603 89460333 -----Original Message----- From: "Bathula Raghuram \(Mumbai - PIPING\)" <R.Bathula@ticb.com> To: <materials-welding@googlegroups.com> Date: Mon, 22 Sep 2008 20:06:19 +0530 Subject: [MW:1158] RE: 1150] SAW - For Single sided joint Why  not GTAW+SAW?  Full SAW may not give you full penetration + defect free in UT -----Original Message----- From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of PREM SHANKARDUTT NAUTIYAL Sent: Saturday, September 20, 2008 4:36 PM To: material...

For your question answer is yes. Add CKP´s comments. Regards, S.Senthilkumar --- On Mon, 22/9/08, Chaitanya Purohit <ck@knm-group.com> wrote: From: Chaitanya Purohit <ck@knm-group.com> Subject: [MW:1156] Re: FCAW --- UT / RT ??? To: materials-welding@googlegroups.com, "greetings" <senthilthandesh@gmail.com> Date: Monday, 22 September, 2008, 7:09 PM Dear Friend, FCAW is prone to these deffects if you consumable is not having capability to produce the sound weld. First of all the filler shall have the low hydrogen (H4 at least). If your wire spool is kept in open area it pick up the moisture and create problem of porosity.   Again skill of the welder is most important thing when we use FCAW. Normal SMAW welders are not comfortable with this procedure and if they weld with FCAW, most of the time LOF comes in. If you have resources (time and money), I will suggest to do welder qualification with bend test (not just RT), that will solve your p...

Why  not GTAW+SAW?  Full SAW may not give you full penetration + defect free in UT -----Original Message----- From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of PREM SHANKARDUTT NAUTIYAL Sent: Saturday, September 20, 2008 4:36 PM To: materials-welding@googlegroups.com Subject: [MW:1150] SAW - For Single sided joint Dear Friends We are trying to establish SAW for single sided joint. The base metal is SA516Gr.70. The joint is 25mm thick. The joint is a single bevel groove but joint with included angle of 45degree ( one member is vertical and there is bevel on other member).The final NDT is UT. Presently we are welding this joint with TIG+SMAW.The joint is circular hence ideal for SAW. Now we want to try to weld this single sided joint completely with SAW. This is for productivity improvement. Is it possible to weld this joint having no access from other side with SAW completely...

Dear Friend, FCAW is prone to these deffects if you consumable is not having capability to produce the sound weld. First of all the filler shall have the low hydrogen (H4 at least). If your wire spool is kept in open area it pick up the moisture and create problem of porosity.   Again skill of the welder is most important thing when we use FCAW. Normal SMAW welders are not comfortable with this procedure and if they weld with FCAW, most of the time LOF comes in. If you have resources (time and money), I will suggest to do welder qualification with bend test (not just RT), that will solve your problem of LOF.    If any one have some other input .........most welcome.   C. K. Purohit General Manager - QA/QC/NDT/R&D KNM Process Systems Sdn Bhd. HP :    +616 3376448 Phone : +603 89460338 Fax   : +603 89460333 -----Original Message----- From: greetings <senthilthandesh@gmail.com> To: materials-welding@googlegro...

Dear Members,   If any one from this group or your friends(only those from kuwait) were planning to appear for API 510/570 exams to be held on Dec 3 2008, please reply so that we can request API to provide a center in Kuwait. If the attendies will be more than ten, then API will provide a exam center in kuwait. Presently the nearest center to Kuwait is in Baharin. Now we four candidates are applied for the exam. At least 10 candidates required to get a test center at kuwait.   Please reply those from Kuwait.   Thanks and regards   Sajeev Gopalan I&C team KOC Kuwait Mobile:97364100             3716215(Res)             3861715(off)   --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to materials-welding@googlegroups.com To unsubscribe from this group, send email ...

Check whether material required pre-heating Make sure the process which you followed is correct (example grinding should be done after completion of single pass, etc) On Fri, Sep 19, 2008 at 9:42 PM, PREM SHANKARDUTT NAUTIYAL < prem_nautiyal@rediffmail.com > wrote:   Dear Friends We are presently using FCAW process(E71T-1) for welding SA516Gr.70 material in 3G and 1G. The joint calls for 100% RT and UT. The thickness is 70mm with double V. But everytime we get repair in the weld like slag, LOF,porosities.. So my basic question is can FCAW be used to weld RT and UT joints?? If yes what is the correct procedure / precautions to be followed.. Regards Prem Nautiyal PREM S NAUTIYAL CELL : 9820313278 --~--~---------~--~----~------------~-------~--~----~ 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'...

groove angle, fcaw gas cup size, gas flow, wind protection etc. to be checked.     2008/9/19 PREM SHANKARDUTT NAUTIYAL < prem_nautiyal@rediffmail.com >   Dear Friends We are presently using FCAW process(E71T-1) for welding SA516Gr.70 material in 3G and 1G. The joint calls for 100% RT and UT. The thickness is 70mm with double V. But everytime we get repair in the weld like slag, LOF,porosities.. So my basic question is can FCAW be used to weld RT and UT joints?? If yes what is the correct procedure / precautions to be followed.. Regards Prem Nautiyal PREM S NAUTIYAL CELL : 9820313278 --~--~---------~--~----~------------~-------~--~----~ 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...

    450-550 Amp, 30-32 V, 50cm per minute travel speed.     2008/9/19 PREM SHANKARDUTT NAUTIYAL < prem_nautiyal@rediffmail.com >   Dear Friends We are presently trying to use a local make 4.8mm dia SAW filler wire (EM12K)in place of 3.15mm dia. Can anyone tell us the correct welding parameters like: current, voltage, travel speed,etc for 4.8mm dia wire.. The base metal is SA516Gr.70, the thickness is 70mm. The joint is single bevel groove joint with no access from other side. Presently we weld first 2 passes with TIG, Then 2 passes of SMAW and then subsequent passes with SAW-3.15mm dia. Now we want to use 5.0mm dia SAW wire. So what should be the welding parameters ? We have tried various parameters for SAW(4.8mm dia wire) but failed to get good weld finish /UT. We have a 1200A Lincoln Power source. The joint calls for UT. Regards Prem Nautiyal PREM S NAUTIYAL CELL : 9820313278 --~--~---------~--~----~------------~-------~--~----...

Dear All,   As per Aramco company specification, Fittings that are re-cut or re-beveled shall have the cut surface examined for laminations before welding .   Now my question is   1. What are the chances of getting laminations in seamless pipes and fittings that are manufactured from seamless pipes.   As per my understanding of this clause, only fittings and pipes that are fabricated from plate should be checked for laminations after cut and re bevelling.   Expert comments requested.   Thanks and regards     --~--~---------~--~----~------------~-------~--~----~ 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 purpose...

  Dear Friends Please make good use of the attached file "useful links for Engineers". Regards Prem Nautiyal PREM S NAUTIYAL CELL : 9820313278 --~--~---------~--~----~------------~-------~--~----~ 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 We are trying to establish SAW for single sided joint. The base metal is SA516Gr.70. The joint is 25mm thick. The joint is a single bevel groove but joint with included angle of 45degree ( one member is vertical and there is bevel on other member).The final NDT is UT. Presently we are welding this joint with TIG+SMAW.The joint is circular hence ideal for SAW. Now we want to try to weld this single sided joint completely with SAW. This is for productivity improvement. Is it possible to weld this joint having no access from other side with SAW completely ? Can we keep zero gap, zero rootface, and achieve full penetration joint with SAW?? If yes what should be the parameters, wire dia., etc. We dont want to use any ceramic backing. Can anyone suggest how to weld this joint completely with SAW. This is a development activity. Please share your experience... Regards Prem Nautiyal PREM S NAUTIYAL CELL : 9820313278 --~--~---------~--~----~...

  Dear Friends We are presently using FCAW process(E71T-1) for welding SA516Gr.70 material in 3G and 1G. The joint calls for 100% RT and UT. The thickness is 70mm with double V. But everytime we get repair in the weld like slag, LOF,porosities.. So my basic question is can FCAW be used to weld RT and UT joints?? If yes what is the correct procedure / precautions to be followed.. Regards Prem Nautiyal PREM S NAUTIYAL CELL : 9820313278 --~--~---------~--~----~------------~-------~--~----~ 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 We are presently trying to use a local make 4.8mm dia SAW filler wire (EM12K)in place of 3.15mm dia. Can anyone tell us the correct welding parameters like: current, voltage, travel speed,etc for 4.8mm dia wire.. The base metal is SA516Gr.70, the thickness is 70mm. The joint is single bevel groove joint with no access from other side. Presently we weld first 2 passes with TIG, Then 2 passes of SMAW and then subsequent passes with SAW-3.15mm dia. Now we want to use 5.0mm dia SAW wire. So what should be the welding parameters ? We have tried various parameters for SAW(4.8mm dia wire) but failed to get good weld finish /UT. We have a 1200A Lincoln Power source. The joint calls for UT. Regards Prem Nautiyal PREM S NAUTIYAL CELL : 9820313278 --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to materials-welding@googlegroups.com To unsubscribe from this group, send email to materials-welding-unsubscribe@g...

first of all please choose appropriate subject, when posting new query, and not reply to the ongoing discussion   St 35.8 is normal carbon steel, you can use ER70-S2/E7018 etc. DIN 17175 give the chem/mech composition, and DIN2448 is a dimn standard. -----Original Message----- From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Mahtab Dewan Sharif Sent: Thursday, September 18, 2008 9:02 AM To: materials-welding@googlegroups.com Subject: [MW:1139] Re: Piping Materials for Hot water Tracings. Dear All,   Can you suggest any suitable welding consumable for Pipes and welding fittings of material: St. 35.8 DIN 2448 with 3.1B certificate.   Regards Sharif BOC Bangladesh Limited.   --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to materials-welding@googlegroups.com To unsubscribe from this group, send email to materials...

neither of these code will allow you to use this replacement (ASME Sec IX has nothing do to with it), thickness needs to be checked by design calculations, also reducer design involves flow->, pump placement etc..   -----Original Message----- From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Nialel.Lukas@lglgold.com Sent: Thursday, September 18, 2008 2:49 AM To: materials-welding@googlegroups.com Subject: [MW:1135] Reducer Hi   Can anyone advise if it is possible to use a 250 x 150 eccentric reducer with wall thickness of 11mm in place of a 250 x 150 concentric reducer, BW A234-WPB, SCH STD on CS1 Pipe ASTM 106, on a geothermal steam branch? From a well head, the branch of DN150 feeds DN250 to a 250 x 200 Straight Tee BW234-WPB, SCH STD as a junction with another DN250 –DN150 line to a well head and the DN250 Steam header feeding DN300 line eventually. Is ...

If contract doc. doesn't say and the PMC suggests a diff material, you/your process dept. have to weight the overall cost saving solution and make the decision. Either to use SS and no inhibitor (or) LTCS with inhibitor. In case if you are interested to know about tomsol just search in the net for 'Tomsol MSDS' . In case if you are not aware of MSDS, it is the abbreviation of 'Material Safety Data Sheet' which gives more info on the chemical. With regards, Kannan "Bagesh Kumar" <bagesh.kmr@gmail.com> Sent by: materials-welding@googlegroups.com 18/09/2008 13:13 Please respond to materials-welding@googlegroups.com To "'Desai Jignesh \(Mumbai - Piping\)'" <J.J.Desai@ticb.com> cc <materials-welding@googlegroups.com> Subject [MW:1144] RE: 1132] Piping Materials for Hot water Tracings.   The Contract document does not specify any additive inhibiters in Glycol present, I believe tha...

  The Contract document does not specify any additive inhibiters in Glycol present, I believe that LTCS Materials can be used but without additive inhibitors the Acid formation will be there which will be highly risky.   I think Tomsol A 40 or A 65 additives used as inhibitors element in Glycol to prevent Acid formation. But still not clear about this process data. Kumar Bagesh From: Desai Jignesh (Mumbai - Piping) [mailto:J.J.Desai@ticb.com] Sent: Thursday, September 18, 2008 7:43 PM To: bagesh.kmr@gmail.com Subject: FW: 1132] Piping Materials for Hot water Tracings.   Bhagesh   FYI, we have used LTCS and CS material for Glycol water service in Borouge II project. Now I do not have process dat with me.   Regds/Jignesh   From: materials-welding@googlegroups.com [mailto: materials-welding@googlegroups.com ] On Behalf Of Bagesh Kumar Sent: Thursday, September 18, 2...