Re: [MW:22652] Grinding of weld joints after PWHT

Grinding does not affect material after pwht as temp are too low. Grinding is done for removing thermo couples all the time. Even temporary supports are cut and ground after pwht.

Rgds
Prakash. G.
Independent Consultant. ASME/ISO

From: Umar Makrani Sent: Saturday, 27 December 2014 07:58 To: materials-welding@googlegroups.com Reply To: materials-welding@googlegroups.com Subject: Re: [MW:22651] Grinding of weld joints after PWHT

I think no. My belief is reinforced by sometimes we replace the pwht with temperbead in which we grind the half bead. Expect views from other experts. 

 

 

Thanks & Regards

 

Firoz Ahmed R. Makrani, PMP®

Sr. Inspection Engineer

On 26 Dec 2014, at 13:03, Ali Al-Zawamri <alzawamri@gmail.com> wrote:

Dear,

Grinding afte PWHT may create or hardning the weld joint.  So it is better to do before PWHT.
waiting for the team input.

Thanks,

On 26 Dec 2014 10:50, "Vikas Sahu" <viksahu@gmail.com> wrote:

Dear sir,

              Please give reference /code/standard/writeup for Grinding (upto what extent) permitted or not after PWHT of Weld Joints of piping.

Regards

Vikas sahu

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