Materials & Welding

Dear Mr Mahuri Please post your querries with appropriate subject line and also don't club different querries together Thanking for your cooperation On Jul 31, 5:50 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-do...

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-affect-the-HAZ-of-the-weld.cfm Regarding your 2nd question I can tell that the Code name itself identifiy the difference. API 650 is for the "Welded Steel Tanks for Oil Storage" and API 620 is for the "Design and Construction of Large, Welded, Low-Pressure Storage Tanks". Regards, R. Bose On Jul 29, 7:11 am, "Mahuri Snehkumar \(TIPO - ...

Dear Atul, If you are concerned more about to avoid root undercut, the only thing you need to do is to demagnetise the job near to wep and on wep with the help of demagnetising equipment and weld after demagnetising. You will get a smooth weld without any undercut. For one of our projects, we have over come the undercut problem by demagnetising and welding. This is for your information and for ferritic materials only. Regards Ramu +971-50-8249649-personal # +971-50-8181761-official # --- On Mon, 28/7/08, atul patil < atulpatil99@gmail.com > wrote: > From: atul patil < atulpatil99@gmail.com > > Subject: [MW:976] Re: Root under cut > To: materials-welding@googlegroups.com > Date: Monday, 28 July, 2008, 1:22 PM > to avoid root undercut > thanks in advance > > > On 7/27/08, Paresh Katvi < pkatvi@gmail.com > wrote: > > > > Dear Atul > > > > Ar you looking for information How to avoid root > undercut or NDT method to ...

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-affect-the-HAZ-of-the-weld.cfm Regarding your 2nd question I can tell that the Code name itself identifiy the difference. API 650 is for the "Welded Steel Tanks for Oil Storage" and API 620 is for the "Design and Construction of Large, Welded, Low-Pressure Storage Tanks". Regards, R. Bose On Jul 29, 7:11 am, "Mahuri Snehkumar \(TIPO - QA/QC\)" < S.Mah...@panipat.ticb.com > wrote: > Dear friends, > > Can someone tell me the exact length of HAZ area after the weld. > > Also what is the main difference between API 650 and API 620 codes. > > Regards, > > Snehkumar L. Mahuri > > Lead - Welding / NDE > > EPCC 2A, PANIPAT > > 9215989508 > >  image001.gif > 92KViewDownload --~--~---------~--~----~---...

Shell Global Solutions International B.V. definition as follows   High-alloy steel :  Stainless steels, 12 Cr and higher Low-alloy steel :  Steels from 0.5 Mo up to 9Cr-1Mo    Steels from 0.5 up to 9% Ni Unalloyed steel : Carbon manganese steels, including 0.3 and 0.5 Mo steels   From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Bathula Raghuram (Mumbai - PIPING) Sent: Wednesday, July 02, 2008 1:56 PM To: materials-welding@googlegroups.com Subject: [MW:887] RE: 882] alloy steels   There is no such clear demarcation, can vary from institution to institution   ASM classification as below Plain carbon steel (<0.2C called as low carbon steel) LAS <= 8% of total alloying elements HAS > 8% of total alloying elements   By this all your below netioned materials can be called as LAS (except P91), where as even P91 comes under LAS family  in...

Sorry. The base material is UNS S31254 only.(typing error) -----Original Message----- From: materials-welding@googlegroups.com [mailto: materials-welding@googlegroups.com ] On Behalf Of Bathula Raghuram (Mumbai - PIPING) Sent: 29 July, 2008 9:10 AM To: materials-welding@googlegroups.com Subject: [MW:982] RE: 981] FW: 978] RE: 974] RE: 971] RE: 970] Consumable For UNS31254weldoverlay on SA516 Gr. 70 Please note there is a difference in UNS# S32654 and UNS# S31524, you are using 654SMO and the other one is 254SMO (what we are discussing here) -----Original Message----- From: materials-welding@googlegroups.com [mailto: materials-welding@googlegroups.com ] On Behalf Of mathu.subramanian Sent: Tuesday, July 29, 2008 11:01 AM To: materials-welding@googlegroups.com Subject: [MW:981] FW: 978] RE: 974] RE: 971] RE: 970] Consumable For UNS31254weldoverlay on SA516 Gr. 70 Dear Friends, We are fabricating Evaporator Sump having base material of UNS S32654 for the Canadian Vessel Manufacturer. With...

Please note there is a difference in UNS# S32654 and UNS# S31524, you are using 654SMO and the other one is 254SMO (what we are discussing here) -----Original Message----- From: materials-welding@googlegroups.com [mailto: materials-welding@googlegroups.com ] On Behalf Of mathu.subramanian Sent: Tuesday, July 29, 2008 11:01 AM To: materials-welding@googlegroups.com Subject: [MW:981] FW: 978] RE: 974] RE: 971] RE: 970] Consumable For UNS31254weldoverlay on SA516 Gr. 70 Dear Friends, We are fabricating Evaporator Sump having base material of UNS S32654 for the Canadian Vessel Manufacturer. With their recommendations only we are using ENiCrMo-10. Regards, S.Mathusoothanan -----Original Message----- From: materials-welding@googlegroups.com [mailto: materials-welding@googlegroups.com ] On Behalf Of Abby Joseph Sent: 29 July, 2008 6:51 AM To: materials-welding@googlegroups.com Subject: [MW:978] RE: 974] RE: 971] RE: 970] Consumable For UNS31254 weldoverlay on SA516 Gr. 70 Dear All, Just to a...

Dear Friends, We are fabricating Evaporator Sump having base material of UNS S32654 for the Canadian Vessel Manufacturer. With their recommendations only we are using ENiCrMo-10. Regards, S.Mathusoothanan -----Original Message----- From: materials-welding@googlegroups.com [mailto: materials-welding@googlegroups.com ] On Behalf Of Abby Joseph Sent: 29 July, 2008 6:51 AM To: materials-welding@googlegroups.com Subject: [MW:978] RE: 974] RE: 971] RE: 970] Consumable For UNS31254 weldoverlay on SA516 Gr. 70 Dear All, Just to add further to this, Avesta P12-R Basic (ENiCrMo-12) is best suited for welding UNS S31254. The Avesta P16 Basic electrode confirms to ENiCrMO-13 and is specifically designed for welding 654SMO (UNS S32654) grades. Regards, Abby Joseph -----Original Message----- From: materials-welding@googlegroups.com [mailto: materials-welding@googlegroups.com ] On Behalf Of Bathula Raghuram (Mumbai - PIPING) Sent: 28 July 2008 09:57 To: materials-welding@googlegroups.com Subject: [M...

Dear friends,   Can someone tell me the exact length of HAZ area after the weld. Also what is the main difference between API 650 and API 620 codes.   Regards,   Snehkumar L. Mahuri Lead - Welding / NDE EPCC 2A, PANIPAT 9215989508   --~--~---------~--~----~------------~-------~--~----~ 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 All, Just to add further to this, Avesta P12-R Basic (ENiCrMo-12) is best suited for welding UNS S31254. The Avesta P16 Basic electrode confirms to ENiCrMO-13 and is specifically designed for welding 654SMO (UNS S32654) grades. Regards, Abby Joseph -----Original Message----- From: materials-welding@googlegroups.com [mailto: materials-welding@googlegroups.com ] On Behalf Of Bathula Raghuram (Mumbai - PIPING) Sent: 28 July 2008 09:57 To: materials-welding@googlegroups.com Subject: [MW:974] RE: 971] RE: 970] Consumable For UNS31254 weldoverlay on SA516 Gr. 70 UNS31254 is similar to Type 254SMO of Avesta polarit; you may contact them for their recommended combination (Avesta P16 or P12-R basic etc.) ERNiCrMo-3 (AWS Specification A5.14) or ENiCrMo-3/ ENiCrMo-12 (AWS Specification A5.11) can be used for depositing, depending on the process you may choose. E309LMo also can be used for barrier layer. Avestapolarit has 805 flux which can be used in case of SAW Sandvik also got similar comb...

I presume you are referring to UNS No. S43100. Welding of this steel to 304L should be done with 309L consumables.   Regards,   Abby Joseph T-PUT Welding India Pvt. Ltd.     From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Bathula Raghuram (Mumbai - PIPING) Sent: 28 July 2008 10:15 To: materials-welding@googlegroups.com Subject: [MW:975] RE: 968] SS431#SS 304L   Please specify UNS# for SS431? From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of PREM SHANKARDUTT NAUTIYAL Sent: Friday, July 25, 2008 8:02 PM To: materials-welding@googlegroups.com Subject: [MW:968] SS431#SS 304L Dear Friends Has anybody welded SS431(martensitic Stainless Steel) to SS 304L? We have a SS431 forging about 50mm thick and it has to be welded to a 25mm thick SS304L ring. The joint is a 4mm fillet all around. Can anyone tell me the ...

Root undercut is end result of high Current, travel speed, uneven root gap and some time because of surface tension of the material and last but not least because of welder human error. To avoid under cut mainly focus should be given on current and travel speed. Undercut problems are not envisaged with cellulose electrode if proper welding parameter set along with good skill welder. Some time re shuffling of root welders also help to reduce down root related discontinuities.   Regards   Paresh   On 7/28/08, atul patil < atulpatil99@gmail.com > wrote: to avoid root undercut thanks in advance   On 7/27/08, Paresh Katvi < pkatvi@gmail.com > wrote: Dear Atul   Ar you looking for information How to avoid root undercut or NDT method to analisied under cut in most sensitive manner?   please give further information.   Regards   Paresh Katvi   On 7/22/08, atul patil < atulpatil99@gmail.com > wrot...

to avoid root undercut thanks in advance   On 7/27/08, Paresh Katvi < pkatvi@gmail.com > wrote: Dear Atul   Ar you looking for information How to avoid root undercut or NDT method to analisied under cut in most sensitive manner?   please give further information.   Regards   Paresh Katvi   On 7/22/08, atul patil < atulpatil99@gmail.com > wrote: Dear all I am working with Gas export pieline in Kazakhstan We are using 6010 electrode for root & 8010 for fill cap   we are facing the problem with root undercut   Actually on the basis of radiography ( ISO 13847 ) doesnt ask to cmpareason of density with parent metal It says only about length   Please guide It is very difficult to prepare the calibration block for UT ( Manual ) in my city ( Atyrau ) Could you please guide any  suggestions welcome. --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to materia...

Please specify UNS# for SS431? From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of PREM SHANKARDUTT NAUTIYAL Sent: Friday, July 25, 2008 8:02 PM To: materials-welding@googlegroups.com Subject: [MW:968] SS431#SS 304L Dear Friends Has anybody welded SS431(martensitic Stainless Steel) to SS 304L? We have a SS431 forging about 50mm thick and it has to be welded to a 25mm thick SS304L ring. The joint is a 4mm fillet all around. Can anyone tell me the welding procedure, precautions and SMAW electrode to use. Can we use E309L electrode? Regards Prem Nautiyal Godrej,Mumbai 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.bl...

UNS31254 is similar to Type 254SMO of Avesta polarit; you may contact them for their recommended combination (Avesta P16 or P12-R basic etc.) ERNiCrMo-3 (AWS Specification A5.14) or ENiCrMo-3/ ENiCrMo-12 (AWS Specification A5.11) can be used for depositing, depending on the process you may choose. E309LMo also can be used for barrier layer. Avestapolarit has 805 flux which can be used in case of SAW Sandvik also got similar combination such as Sanicro60 etc... For strip cladding Soudokay has got some combinations, such as Soudotape625 with flux NFT201/EST201 (refer their catalogue) -----Original Message----- From: materials-welding@googlegroups.com [mailto: materials-welding@googlegroups.com ] On Behalf Of mathu.subramanian Sent: Sunday, July 27, 2008 9:47 AM To: materials-welding@googlegroups.com Subject: [MW:971] RE: 970] Consumable For UNS31254 weldoverlay on SA516 Gr. 70 Dear Friend, You can use ER NiCrMo-10. Regards, S.Mathusoothanan -----Original Message----- From: materials-weld...

Dear Atul   Ar you looking for information How to avoid root undercut or NDT method to analisied under cut in most sensitive manner?   please give further information.   Regards   Paresh Katvi   On 7/22/08, atul patil < atulpatil99@gmail.com > wrote: Dear all I am working with Gas export pieline in Kazakhstan We are using 6010 electrode for root & 8010 for fill cap   we are facing the problem with root undercut   Actually on the basis of radiography ( ISO 13847 ) doesnt ask to cmpareason of density with parent metal It says only about length   Please guide It is very difficult to prepare the calibration block for UT ( Manual ) in my city ( Atyrau ) Could you please guide any  suggestions welcome. --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to materials-welding@googlegroups.com To unsubscribe from this group, send email to materials-welding-unsubscribe@googlegrou...

hello Romio I think you are looking for weld overlay on P1 by P8 please let me know which process you are doing ESW or GTAW or SMAW as far as Strip cladding is concerend i think Soudotape is the only genuine supplier in htis categorry. as far as AWS class i will mail you later. bye On Jul 26, 5:14 pm, Romio < romiomda...@gmail.com > wrote: > Has anybody experienced UNS31254 (P No. 8 Gr. 4.....chemi..20Cr 18Ni > 6Mo) weldoverlay on SA516 Gr. 70 > Can someone suggest the correct AWS class? If u can suggest the STRIP > consumable supplier for the smae it will be handful.... > > Romio --~--~---------~--~----~------------~-------~--~----~ 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 me...

Dear Friend, You can use ER NiCrMo-10. Regards, S.Mathusoothanan -----Original Message----- From: materials-welding@googlegroups.com [mailto: materials-welding@googlegroups.com ] On Behalf Of Romio Sent: 26 July, 2008 3:15 PM To: Materials & Welding Subject: [MW:970] Consumable For UNS31254 weldoverlay on SA516 Gr. 70 Has anybody experienced UNS31254 (P No. 8 Gr. 4.....chemi..20Cr 18Ni 6Mo) weldoverlay on SA516 Gr. 70 Can someone suggest the correct AWS class? If u can suggest the STRIP consumable supplier for the smae it will be handful.... Romio --~--~---------~--~----~------------~-------~--~----~ 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 o...

Has anybody experienced UNS31254 (P No. 8 Gr. 4.....chemi..20Cr 18Ni 6Mo) weldoverlay on SA516 Gr. 70 Can someone suggest the correct AWS class? If u can suggest the STRIP consumable supplier for the smae it will be handful.... Romio --~--~---------~--~----~------------~-------~--~----~ 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. -~----------~----~----~----~------~----~------~--~---

Friends, recently I attended one seminar on “Awareness training seminar on CE Marking – Pressure equipment directive” conducted by TUV India. I share below my learning:   Any std. adopted and published by CEN (European Committee for Standardization – Comite Europeen de normalisation) is known as EN std. (European standard). Incase it is published in “official Journal of the European Union”, it is known as “Harmonised Standard”. For example, PED 97/23/EC has been published in official Journal of Europa under no. L 181 on 09.07.1997.   All std. published in “official Journal of the European Union” can be seen at: http://eur-lex.europa.eu/JOIndex.do?ihmlang=en   You can also search and download the harmonized std from above mentioned site.   “BLUE GUIDE” are also available for the interpretation of harmonized stds.   If anyone would like to place the product in the Euro...

  Dear Friends Has anybody welded SS431(martensitic Stainless Steel) to SS 304L? We have a SS431 forging about 50mm thick and it has to be welded to a 25mm thick SS304L ring. The joint is a 4mm fillet all around. Can anyone tell me the welding procedure, precautions and SMAW electrode to use. Can we use E309L electrode? Regards Prem Nautiyal Godrej,Mumbai 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 Mr Sachin   We have come out in a long way since past 13 months with nearly 500 members now to help you, me and all of us to enlighten our knowledge in the process, devoting their time. We have debated and decided in the past not to distribute any copyright material (such as codes, standards, company specs etc) in the group. I appreciate time/efforts by the moderators; it is a part of the process, no personnel issues.  No more issue on the subject pl. let us stick to the theme of the forum, on sharing technical experience and helping out newbie’s in the industry   Discussion is an exchange of intelligence Argument is an exchange of ignorance.   I am just pasting here one of the discussions posted by our group member in the past   Dear All, My advice stands. What you might choose to do within your own company is one thing - I'm sure your company lawyers can help you on matters of copyright. What you post to a world-wide, public gr...

Dear Friends,   We are using “Key to Steel - Stahlschlussel 2007 (version 5)” and have registered copy of the same. We found it very useful.   It is 138Euro Hard Copy / 380Euro Digital. See http://www.stahlschluessel.de/en/products.html for details.   Best regards, Muhammad Nasir Abbas Sr. Inspection Engineer, Fauji Fertilizer Company Limited, Mirpur Mathelo 65050, Distt. Ghotki, Pakistan. Save a TREE: Please avoid printing this email, unless its really required!     From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of sachin sankhe Sent: Tue, 22-July-2008 5:18 PM To: materials-welding@googlegroups.com Subject: [MW:960] Material equivalent software       Dear Friends, At times we come across situation where due to unavailabiity of certain material we have to search equivalent material. Its time consuming process to find equivalent material. I j...

Reduced rating is common where a conservative approach is applied in defining the piping materials while shaping the piping material classes. Conservative... in the context of reduced thickness of pipes and fittings and having in some cases a reduced pressure rating of flanges. Subjectively, handling such cases is a little bit complex due to the nature of broad aspect of the parameters involved. In a process plant, there will be few border cases of design conditions in the process streams, by which I mean the borders of the ANSI B16.5/B16.34 rating tables. On certain cases reducing to the next lower pressure rating will benefit a turnkey contractor, considering down the line cost benefit depending upon the quantum of piping involved in those streams. During such cases the piping material engineer who optimizes the PMC-piping material class concludes with process engineer to reduce the design condition. In these border cases there are two aspects. 1) The simple safety factor redu...