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Re: [MW:34002] PWHT time

By Materials & Welding
11.4 hrs total.

2.7 hr for rate of heating and 6 hrs holding time and 2.7 hrs for rate of cooling so in total : 11.4hrs

On Sat, Oct 8, 2022 at 2:15 PM Student <nabeel233@gmail.com> wrote:
The following is an exam question. Please guide how to do it

A  one and Half inch of material has to be PWHTed from 600 F to 1350  and shall be kept at 1350 F for 6 hours. It has to be cooled down back to 600 F. If the rate of heating and cooling is 500F per hour per inch  , what is the total time for PWHT.  Do not consider heating the material up to 600F in the calculation

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Thanks and Regards
Aravind Vadrapalli
QA (Certified Senior Multi Discipline Inspector)
Email address: aravind.mec@ gmail.com
Contact No : +917675039689

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