Cover the weld with insulation and let it cool slowly.
Regards, jimmy
On 8 Jun 2010 14:02, "mahendran p" <pmahe_79@yahoo.co.in> wrote:
> Hi all,
> May any one tell me, how to control the hardness of the P22 materials welding without PWHT. Even, we do pre-heating as per the ASME 31.3 & also we use 2.6mm dia electrode(E9016/8). Still we get the hardness around 290 HB.
>
> Any suggestions to control the hardness within 241 HB(ASME 31.3).
>
>
> Please help.
> Thank you.
> Best regards,
> P.Mahendran
>
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The views expressed/exchnaged in this group are members personel views and meant for educational purposes only, Users must take their own decisions w.r.t. applicable code/standard/contract documents.
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