Materials & Welding

Hi Friends,   I need comparision between gas fired furncae and electrical induction heating furnace. Basically I am looking for advantage and disadvantage between these two heating media.   Regards,   Chetan Parekh Abu Dhabi --~--~---------~--~----~------------~-------~--~----~ 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. -~----------~----~----~----~------~----~------~--~---

I think for this u go with B31.1 which is for power piping On 8/23/08, parviz farhadi < parvizfarhadi@gmail.com > wrote: > I think for this pressure and temperature still u can use the ASME B31.3 > just use the section K which is high pressure. > > Regards, > > > On 8/22/08, ali < ali@propipemanufacturing.com > wrote: >> >> Dear Friends, >> >> I would appreciate if you be able to give your advice to me about the >> designing of a very high pressure line heater. >> >> I am in process to design a line heater with the following information: >> >> MAWP: 10000 PSI @ -40/ 250 F >> >> Corrosion Allowance: 1/16" >> >> RTJ Weld Neck: 3+1/16" 10K API >> >> 4130 Material >> >> I realize that this does not fall under the normal construction codes ( >> B31.3 ). However I am unfamiliar with what direction to take. Your help i...

I think for this pressure and temperature still u can use the ASME B31.3 just use the section K which is high pressure.   Regards,   On 8/22/08, ali < ali@propipemanufacturing.com > wrote: Dear Friends, I would appreciate if you be able to give your advice to me about the designing of a very high pressure line heater. I am in process to design a line heater with the following information:             MAWP: 10000 PSI @ -40/ 250 F             Corrosion Allowance: 1/16" RTJ Weld Neck: 3+1/16 "   10K API 4130 Material I realize that this does not fall under the normal construction codes ( B31.3 ). However I am unfamiliar with what direction to take. Your help in this matter is greatly appreciated.   Sincerely yours' Alia   --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to materials-weldi...

Hi, I think API 620 is for Cryogenic product storage tanks like LNG etc. Regards Prabhakar. S On Jul 31, 3:50 pm, "Mahuri Snehkumar \(TIPO - QA/QC\)" < S.Mah...@panipat.ticb.com > wrote: > Dear Bose, > > The difference what you have mentioned that I am also well aware of, but I require some other major difference. > > Regards, > > Snehkumar L. Mahuri > Lead - Welding / NDE > EPCC 2A, PANIPAT > 9215989508 > > > > -----Original Message----- > From: materials-welding@googlegroups.com [mailto: materials-welding@googlegroups.com ] On Behalf Of Rituraj Bose > Sent: Thursday, July 31, 2008 3:32 PM > To: Materials & Welding > Subject: [MW:985] Re: HAZ > > Dear Mahuri, > > Actually length of HAZ cannot be specified so easily. In any case you > can follow the link to have just an idea for it. > > http://www.esabna.com/us/en/education/knowledge/qa/How-does-welding-a. .. > > Regarding your 2...

Dear Friends, I would appreciate if you be able to give your advice to me about the designing of a very high pressure line heater. I am in process to design a line heater with the following information:             MAWP: 10000 PSI @ -40/ 250 F             Corrosion Allowance: 1/16” RTJ Weld Neck: 3+1/16 ”   10K API 4130 Material I realize that this does not fall under the normal construction codes ( B31.3 ). However I am unfamiliar with what direction to take. Your help in this matter is greatly appreciated.   Sincerely yours’ Alia   --~--~---------~--~----~------------~-------~--~----~ 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-w...

Dear Dave   Babu n carlos are right, u can weld any fillet, in any diameter as per QW451.1 if you have qualification as per /qw451.1 n qw 451.2.   You can weld in short   Shabbir On Wed, Aug 20, 2008 at 6:39 PM, babu raghavan < babuprmech@yahoo.com > wrote: Mr: S.N.DAVE CHECK ASME SECTION IX  QW 451.4.You can see the details.This welder can weld 3/4 " socket weld.   BABU.P.R   --- On Fri, 8/15/08, shailesh dave < snd2988@yahoo.com > wrote: From: shailesh dave < snd2988@yahoo.com > Subject: [MW:1034] Re: LIMIT OF WELDER QUALIFICATION OVER DIA. RANGE To: materials-welding@googlegroups.com Date: Friday, August 15, 2008, 8:47 AM Dear Romio,   It is ASME SEC. IX.   Regards,   S.N.Dave --- On Thu, 8/14/08, romio dabre < romiomdabre@gmail.com > wrote: From: romio dabre < romiomdabre@gmail.com > Subject: [MW:1032] Re: LIMIT OF WELDER QUALIFICATION OVER DIA. RANGE To: materials-...

If ur using Globular you can switch to spray transfer method to reduce spatter,   V =20+0.4 i    is a thumb rule for SMAW, no idea about GMA.   -----Original Message----- From: materials-welding@googlegroups.com [mailto: materials-welding@googlegroups.com ] On Behalf Of mech Sent: Thursday, August 21, 2008 7:49 PM To: Materials & Welding Subject: [MW:1047] thumb rule     hai friends  is there any thumb rule to find current and voltage in metal active gas welding ... v r using semi automatic MAG machine.with   2.4 mm filler wire dia .current in the rang of 570-670 amps and  voltage 30-39  .and tell wat would b the best way to reduce spattesrs and blow holes and cracks in this welding .     --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to materials-welding@googlegroups.com To unsubscribe from this group, send email to materials-welding...