Dear Nilesh,
Please see attached some literature on the subject. In short, you are required to work within the PQR established heat input values. No more, no less. I know in Shell DEP, there is some reference to it, but this literature explains it better. Hope it helps.
Best regards,
Shashank Vagal
--- On Sun, 1/4/12, waman nilesh <wamannp@gmail.com> wrote:
From: waman nilesh <wamannp@gmail.com>
Subject: Re: [MW:14036] Heat input value in WPS
To: materials-welding@googlegroups.com
Date: Sunday, 1 April, 2012, 12:52 PM
Thank u TG Can u give the detail example so that i can understood more.
Nilesh On Fri, Mar 30, 2012 at 2:25 PM, Tarantula Ghosh <ghosh.tarantula@gmail.com> wrote: Hi Nilesh,
'matter of fact the lower range value is equally important. If the heat input is reduced as compared to PQR values, tendency to harden increases as cooling rate is increased. In your WPS, you need to mention the range as recorded in the PQR.
TGOn Fri, Mar 23, 2012 at 11:53 AM, Prashant Shelar <pshelar@lamprell.com> wrote: Hi Nilesh, Being impact as a requirement, you will have to limit the maximum Heat Input value in WPS as qualified in the PQR. You will have to indicate the values on WPS with upper limit restricted to that in PQR. Thanking you, Rgds, Prashant Dear Experts, I have question we are doing WPS, PQR & WPQ ( Material- IS 2062 GR B & thickness- 20 mm ) as per EN 15614 standard in which impact is essential. So which value of heat input is to be mention on WPS. --
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