Wednesday, May 30, 2012

Re: [MW:14415] WPS on Forged Steel

Hi,
 
You can see this Equivalent Grades in this website Steel - Equivalent Grades.mht
and convince them, if all the properties are same as per S355J2G3 material.
 
 
 Also, refer the attached data for BS Material equivalent  to S355J2G3 material.
 
Just try this.
 
Cheers,
Sarav

 
On Wed, May 30, 2012 at 2:00 PM, Lab <lab@cochinshipyard.com> wrote:
Dear Friends,
 
In our production unit, we would like to make butt weld between forged steel grade of S355J2G3, a round shaped object. The Third part Inspection (TPI) agency which clears the joint, insists us to perform WPS on similar material before production welding. This particular material was imported from other country long back and we could not thick about WPS when we purchased. It is not possible for us to get the similar material (same grade & same condition) suitable for WPS as well as WPQ and no response from the suppliers when contacted for supply of small quantity.
 
At last one supplier came forward and ready to supply S355J2G3 of rolled and normalized plate.
 
When we went to TPI with the proposal of making WPS with rolled plate, they are not convinced as the properties of forged and rolled steel even after Normalizing, are different and insisting us to do WPS test on forged steel of same grade.
 
Request the forum to provide guidelines to get rid of this situation or from where I get small quantity of material of similar grade, condition in India to arrange for WPS.
 
Regards,
Megnath
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