Materials & Welding

Dear Friends,   I have to do a welding procedure for welding  SA203 Gr.E to SA 516 Gr.70. Process GTAW+SMAW. The joint thickness is 19.0 mm. The MDMT for 516 gr.70 portion of vessel is  minus 29 degree C and the MDMT of SA 203 side is minus 87 degree C. The CS portion is exempted from impact test as per curve D in Sec. Viii Div.1. SA 203 Gr.E is also reffed in Curve D.    Is it required to do impact testing of this joint?. If it required, at what temperature? .-29 degree C or -87 degree C?.    If it is required, which HAZ I have to test?. 203 side or 516 side?.   PWHT is asked for 203 material side. Is it required PWHT for this dissimilar joint also?   Your advise will be highly appreciable. Thanks & Regards Muhammed Ibrahim PK -- Thanks & Regards Muhammed Ibrahim PK --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to materials-welding@googlegroups.com To unsubscribe from...

Please use the following consumables: 1) SMAW-- E7018 2) GMAW -- ER70S-6 3) FCAW -- E71T-1 4) SAW -- EH14 F7A4 Regards Prem Nautiyal On Thu, 27 Nov 2008 09:25:36 +0530 materials-welding@googlegroups.com wrote You should opt for E7018 Electrode for SMAW process and ER70S wire for GMAW process.You should also check what is the actual Carbon Equivalent from the material TC by IIW formula C+Mn/6+(Cr+Mo+V)/5+(Cu+Ni)/15 or else by short formula C+Mn/6.It is preferable if it is between 0.41 to 0.43 and does not cross 0.45.Fully killed steel is preferable. Regards Aarpee   On 11/26/08, Polaris wrote: Date: November 26, 2008   Dear Mr. Bathula Raghuram & friends,     Re:    fabrication of I- Girder & Box Girder made of steel of Grade Designation E 410 (Fe 540) of IS 2062: 2006, having plate thickness range 10 m.m. to 36 m.m.   I shall be highly obliged if you kindly help me in selection of welding consumables for the above Steel grade:-   The Chemi...

AC transformer is used for better surface cleaning action and less oxidation in AL welding... On Tue, 25 Nov 2008 13:35:58 +0800 materials-welding@googlegroups.com wrote yes, AC has less heat input as well as less weld penetration.   Regards   On 11/25/08, Muhammed Ibrahim wrote: Hi friends,   Anybody can give an explanation why AC current is recommended for Aluminium welding?   Is there any effect in heat input when using AC intead of DC? Thanks & Regards Muhammed Ibrahim PK   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 ...

Data sheet for Avesta 2507/P100 attached. Further information available on the Avesta Brochure “How to weld duplex SS” which I posted on this group on 3 rd Oct.   Regards,   Abby Joseph       From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Bathula Raghuram (Mumbai - PIPING) Sent: 27 November 2008 16:08 To: materials-welding@googlegroups.com Subject: [MW:1361] MMA welding of super duplex grade S32750   You can the data sheet of Avesta 2507/P100 for details. From: p_chavdarov@mail.bg [mailto:p_chavdarov@mail.bg] Sent: Thursday, November 27, 2008 4:01 PM To: Bathula Raghuram (Mumbai - PIPING) Subject: duplex stainless steels   Can somebody tell me some details for MMA welding of super duplex grade S32750 with 10 mm thickness. I mean welding regimes, consumables, joint preparation, heat input etc. ...

You can the data sheet of Avesta 2507/P100 for details. From: p_chavdarov@mail.bg [mailto:p_chavdarov@mail.bg] Sent: Thursday, November 27, 2008 4:01 PM To: Bathula Raghuram (Mumbai - PIPING) Subject: duplex stainless steels   Can somebody tell me some details for MMA welding of super duplex grade S32750 with 10 mm thickness. I mean welding regimes, consumables, joint preparation, heat input etc.   Preliminary thanks   Best regards Parvan Chavdarov  --~--~---------~--~----~------------~-------~--~----~ 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...

Another option is to use E70XX/ER70S-6/F7A2-EM12K consumables, with additional technical requirement of specified minimum all-weld metal UTS and YS matching the Fe540 minimums. Most 70-class weld metals will actually give 540MPa UTS in actual batches.       From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Bathula Raghuram (Mumbai - PIPING) Sent: 27 November 2008 09:31 To: materials-welding@googlegroups.com Subject: [MW:1359] RE: 1358] Re: Selection of welding consumables for E 410 grade steel of IS: 2062:2006   Is Fe540 modified version of Fe410? (any change in IS2062-2006, I have not seen this code), since the UTS is 540Mpa your selection of 80XX is suitable, however properties for G classified consumables shall be verified from the consumable datasheet, as AWS does not guarantee chem. and impact properties for this classification (G). From: materials-welding@googlegroups.co...

Is Fe540 modified version of Fe410? (any change in IS2062-2006, I have not seen this code), since the UTS is 540Mpa your selection of 80XX is suitable, however properties for G classified consumables shall be verified from the consumable datasheet, as AWS does not guarantee chem. and impact properties for this classification (G). From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Ramprasad Chari Sent: Thursday, November 27, 2008 9:26 AM To: materials-welding@googlegroups.com Subject: [MW:1358] Re: Selection of welding consumables for E 410 grade steel of IS: 2062:2006   You should opt for E7018 Electrode for SMAW process and ER70S wire for GMAW process.You should also check what is the actual Carbon Equivalent from the material TC by IIW formula C+Mn/6+(Cr+Mo+V)/5+(Cu+Ni)/15 or else by short formula C+Mn/6.It is preferable if it is between 0.41 to 0.43 and does not cross 0.45.Fully killed steel is preferabl...

You should opt for E7018 Electrode for SMAW process and ER70S wire for GMAW process.You should also check what is the actual Carbon Equivalent from the material TC by IIW formula C+Mn/6+(Cr+Mo+V)/5+(Cu+Ni)/15 or else by short formula C+Mn/6.It is preferable if it is between 0.41 to 0.43 and does not cross 0.45.Fully killed steel is preferable. Regards Aarpee   On 11/26/08, Polaris < polaris@cal2.vsnl.net.in > wrote: Date: November 26, 2008   Dear Mr. Bathula Raghuram & friends,     Re:     fabrication of I- Girder & Box Girder made of steel of Grade Designation E 410 (Fe 540) of IS 2062: 2006, having plate thickness range 10 m.m . to 36 m.m .   I shall be highly obliged if you kindly help me in selection of welding consumables for the above Steel grade:-   The Chemical Composition of steel: Grade Designation C Mn S P Si Carbon Equivalent (CE), Max Method of deoxidation n E 410 (Fe ...