Hi The TC of your plate reveals that the C.E is 0.47. Any steel with C.E > 0.4, the weldabilty becomes difficult and requires preheat. The preheat temp. is missing in your parameter chart. I would suggest a min. preheat of 100 - 150 degrees Celcius before welding. Please try out and give feedback. Regards Prem Nautiyal
--- On Tue, 4/3/12, pawan <pawan.tiwari@dwekam.org> wrote:
From: pawan <pawan.tiwari@dwekam.org>
Subject: [MW:14044] crack in weld during fillet welding in E-450 grade plate
To: materials-welding@googlegroups.com
Date: Tuesday, April 3, 2012, 10:49 AM
Please suggest the welding procedure and welding parameters to weld E-450 grade steel plate through saw wire (EA-2) and flux (agglomerated-F8A2-EA2-A2). Also, please find here with the attachment of joint details and plate test certificate for your ready references. Because, we are facing the problem of weld cracks in patches during 9 mtr continue fillet welding. If you need any more details please write to us. T&R PT --
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