Re: [MW:18564] PWHT range for WPS

Dear Ram,

  the PWHT  temperature depend only to material grade. Your PQR is prepared for this range of temperature according material grade, so you can use it for the same material grade in production.

The time is according material thickness, you check the thickness qualified range and calculate the time as 1h per 01 inch thickness. (Refer to your construction code)

Regards.

2013/9/2 Ram Patel <rampatelindia2013@gmail.com>

Dear Experts

Can anybody explain me following about WPS & PQR as per ASME sex IX.

If my PQR qualifed with soaking temperature 630 deg. C to 650 deg. C and soaking time 2 hrs 30 minutes maximum, so my question is can WPS qualify for temperature range 600-620 deg.c or above 650 deg.c and soaking time 3 hrs or 2hrs.

My question for which temperature range or soaking time range I can use for WPS if my PQR qualified as per above mentioned PQR range ?.

Thanks in advance

Thanks

Ram

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