Materials & Welding

Thanks for your input....It will be a structure of steel sheets (1.5-5mm) and will be used under up to minus 30 degree temp....Kindly recommend the gas as well. Is there any other process we can use on this apart from GMAW & GTAW???? On Tue, Jul 30, 2013 at 11:18 PM, prem nautiyal < prem_nautiyal26@yahoo.com > wrote: ER70S-6. By the way what is your application and service temperature ? From: Rohit mn < rhmalhotra84@gmail.com > To: materials-welding@googlegroups.com Sent: Tuesday, July 30, 2013 12:47 PM Subject: [MW:18294] Suitable GMAW solid wire for C.S in minus 30 degree Dear experts,   Which is the best sutaible solidwire and gas for welding of Steel sheet metal (P no. - 1) in GMAW Process which sustain minus 30 degree.   -- Rh -- 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, ...

Dear Experts Please advice, which combination listed below is best suited for welding EN10025 S355 J2+N plate to plate fillet weld by SAW F7A0-EM12K F7A2-EM12K Regards Raja -- 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/ http://www.linkedin.com/groups/MaterialsWelding-122787?home=&gid=122787&trk=anet_ug_hm   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. --- You received this message because you are subscribed to the Google Groups "Materials & Welding" group. To unsubscribe from this group and stop receiving emails from it, send an email to materials-welding+unsubscribe@googlegroups.c...

yes absolutely, but it should not be delayed more than 03 or 07 days. some company instruct with in 03 days and some are with in 07 days PWHT. On 7/29/13, Shomenath Bagchi < snbagchi@ymail.com > wrote: > Yes, but sometimes PWHT may get delayed due to unforeseen circumstances, > then hydrogen baking becomes very important. > > > > > >>________________________________ >> From: rishikesh shahi < rishikeshshahi@gmail.com > >>To: materials-welding@googlegroups.com >>Sent: Monday, July 29, 2013 3:31 PM >>Subject: Re: [MW:18277] PHWT for P91 >> >> >>absolutely right, if you are having facility for the immidiate PWHT >>after completion of Immidiate welding then no need to go for the Post >>weld Hydrogen Baking. >> >>On 7/25/13, kannayeram gnanapandithan < kgpandithan@gmail.com > wrote: >>> *We have also done lot of P91 and what i expressed is my expe...

ER70S-6. By the way what is your application and service temperature ? From: Rohit mn <rhmalhotra84@gmail.com> To: materials-welding@googlegroups.com Sent: Tuesday, July 30, 2013 12:47 PM Subject: [MW:18294] Suitable GMAW solid wire for C.S in minus 30 degree Dear experts,   Which is the best sutaible solidwire and gas for welding of Steel sheet metal (P no. - 1) in GMAW Process which sustain minus 30 degree.   -- Rh -- 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/ http://www.linkedin.com/groups/MaterialsWelding-122787?home=&gid=122787&trk=anet_ug_hm   The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own dec...

Hi We have successfully welded 42CrMo4 in past with E8018-B2, Preheat min. 150-200 degree celcius followed by PWHT. Regards Prem Nautiyal From: muhammad bilal <muhammadbilal6@gmail.com> To: materials-welding@googlegroups.com Sent: Tuesday, July 30, 2013 1:32 PM Subject: [MW:18297] Re: 42CrMo4 ( SAE 4140 ) Welding Dear All! We have a screw 7inch diameter made of AISI 4140, its edges are wear our we have to build up, what will be best welding consumable and procedure. Is 300C pre-heat necessary.........also 590-600C is post heat of PWHT, what is holding time? Regards M Bilal  On Thursday, 11 August 2011 10:26:30 UTC+5, Sinan ARSLAN wrote: Hi, As you seen on drawing we will do fillet weld at this ring.The material grade 42CrMo4 ( SAE 4140 ). I searched on internet it must be apply preheating which degree nearly 316ᵒ C before welding and after welding it must be apply heat thearetment ( 590  ᵒC-600  ᵒC ) and than cool down at room temperature. No...

Hi  It appears that there is some mix up of welding consumables like ER316L. Please check the welding consumables issue slip and find out whether there was any mixup. Rectification is to remove the defective areas by grinding and reweld as per WPS. Regards Prem Nautiyal From: Harikrishnan N S <hari.qaqc@gmail.com> To: materials-welding@googlegroups.com Sent: Tuesday, July 30, 2013 9:17 AM Subject: [MW:18292] High Ferrite No. Dear Experts Recently I came across an issue of High Ferrite no. in the weld metal. Parent Metal : A 304L Weld Metal : 308L Welding Process : GTAW The affected area is only a quarter portion (3'o clock to 6'o clock position) of the 30" pipe where ferrite no has been observed as over 21 FN. and PMI has shown 1.57% of Mo.  Please give your valuable comments and rectification measures for this. Refer the attached photos for clarity. Thanks and Regards Harikrishnan -- To post to this group, send email to materials-weldin...

 Yes! Acceptable. There is nothing to confuse with UG16 (c), as it talks only about the UNDER TOLERANCE. On Saturday, 27 July 2013 14:42:57 UTC+3, AAMIR SADDIQ wrote: Dear Expert,                       Please Cleared my doubt, ASME SECTION VIII UG-16. (c) Mill Undertolerance. Plate material shall be ordered not thinner than the design thickness. Vessels made of plate furnished with an undertolerance of not more than the smaller value of 0.01 in. (0.25 mm) or 6% of the ordered thickness may be used at the full design pressure for the thickness ordered.   Ok I understand not less than the above Tolerance.     If the specification to which the plate is ordered allows a greater undertolerance, the ordered thickness of the materials shall be sufficiently greater than the design thickness so that the thickness of the material 14 furnished is not more than the sm...