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Re: Re: [MW:28696] maximum pwht temp

By Materials & Welding
refer 27-7, you can take that clause lieu for ucs-56 on the whole 27-7s condition, only if you have that specific requirements.

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Date: 2018-11-26 09:31
Subject: Re: [MW:28694] maximum pwht temp
wrong i did pwht at 623 for my vessel already

On Mon, 26 Nov 2018, 8:05 am rajesh kaswala <rajeshkasvala@gmail.com wrote:
595 for pwht , 915 normalizing 

On Sun, Nov 25, 2018 at 9:35 AM Souravbohray <ermechsouravbohray@gmail.com> wrote:
ucs 56 adress minimum holding  temprature eg- for Pno 1 its 595 C. can i hold it at  temp 915℃ because after 915 there will be change from alpha phase to gamma and bcc structure to fcc.
and one more point from 770c there will be also change from magnetic to non magnetic property.

i take refference from iron carbon diagram.

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