Recent content by krishh07

We have done chemical analysis of round bar and found carbon 0.48percent and sulfuric 0.07percent. Does E12018G-H4R,as it contains 2percent nickel would be helpful in preventing undergrad crack? krishh07

We tried to weld c45 Round Bar(400mm Dia) with IS2062 E350BR plate 32mm thk with E7018-1H4R with preheating 150Deg,but welding detatchment observed towards C45 side(photo attached).After welding PWHT at 620Deg C to be done. We have some quantity of E12018-1H4R electrodes,can we use same. Shall...

Dear Experts, we are using presently fcaw wire(E71T1C) with SFA5.20 and have 3 to 4 suppliers. Today one enquiry came from one supplier,E71T1-C,with SFA5.36.All my WPS is with SFA5.20,and have sufficient suppliers also to provide consumable with SFA5.20. Can i reject supplier,as it is not as...

Dear Experts, We have done a welding procedure qualification with mig wire ER70S6on SA516Gr70 plate,16mm, 1)tensile test - passed 2)Bend test done at 1T and observed sample cracked away from weld - is the test accepted,if yes as per which ASME IX clause? mks07

Dear Metengr, Thanks for your advise mks07

Dear metengr, Please sugest, test to be performed,from sample containing cracks. mks07

It was observed in SA516Gr.70(50mm & 70mm)cracks developing during service in bend portion.This component was designed to lift 150T of weight. The plate from four sides was welded with SMAW and SAW welding with other plates,after welding pwht was carried out.There was no cracks observed in...

Dear EdStainless, Please, elaborate on significant differences in ductility and impact. mks07

Dear All, I herd from one client that,"Plate bending to be done to the direction of rolling of the plate" in case of manufacturing a pressure vessel.The plate was of S516Gr.70. But as per my past experience,i never seen cutting of plates in rolling direction.Please clarify below, 1)What will...

In my view, 1) Can I use local sub-contractor welders with OEM's WPS/PQR to repair the defective welds ? - Repair can be done with subcontractor developed WPS/PQR(if available). 2) Or do we need to qualify these local sub-contractor welders to OEM's WPS ? OEM's WPS is based on EN standard and...

Dear All, Can any one suggest Higher study(Correspondence)after AMIIW in India?? Student07

As per ASME IX,backing welding(or)back side welding is non essential variable(for WPS). But in PQR,as we have to record actual condition of coupon welded,you need to specify whether back side welding done or not,with sketch of joint details. Krish

Dear, I want to prepare approved welding consumable manufacturer list,as offenly i am meeting local manufacturers who is comming with some recomendations.We dont have inhouse lab facility,and its difficult to send tested coupon outside,more over we purchase in bulk and if rejected welding...

Thanks for your sugestion

Dear, Can any one sugest Alloy690 tube to SA516Gr.70 header tig welding consumable