Friday, September 21, 2018

Re: [MW:28307] For Demand Critical weld as per AWS D1.8

Mr. JIBIN PHILIP,
THIS S275JR IS A STRUCTURAL NON ALLOY STEEL EQUIVALENT OF IS2062.
HOW EVER IN ANY WELDING HEAT INPUT IS ALWAYS CONTROLED THROUGH WPS
BY WAY OF TRAVEL SPEED. THE FORMULA FOR HEAT INPUT IS (v*a) / travel speed.
ANOTHER FACTOR TO REDUCE THE HEAT IN PUT IS TO PREHEAT THE JOB.
Thanks/Regards,

C.R.Bhiwandkar
Supreme Megastructures Pvt. Ltd.
Supreme House, Plot No.-49/C,
Pratap Gad, Opp.-IIT Main Gate.
Powai, Mumbai - 400076
Cell No.:-+919867139337



On Thu, Sep 20, 2018 at 3:33 PM Jibin Philip <jibinphilip123@gmail.com> wrote:
Dear All, 

PQR : Code : AWS D1.1
Welding Process - FCAW ( E71T-1C )
Filler Size - 1.2mm
Material - S275JR to S275JR

For Demand Critical weld as per AWS D1.8, is there any heat Input restrictions are to be followed or not??. In our current WPS the Heat input mentioned are 0.6 to 1 kj/mm.Is this acceptable for Demand Critical weld application ??.  In AWS D1.8 - clause 6.8.1 mentioned as " The heat input range qualified by testing in accordance with Annex A. In annex A it showing a range of 1.2 to 3.1 kj/mm. Dear Experts please help .

Regards, 
Jibin philip

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