Dear All,
Good day.
what will be the effect of longer holding time and higher holding temperature during PWHT on Imapct, tensile and hardness properties of Carbon Steel and low alloy steels.
Example: As per ASME SECTION VIII DIV 1- UCS 56 ( TABLE UCS-56),
For 25 thk P1 Material Minimum holding temperature is 595 deg. celcius and holding time is 1 hour.
If during PWHT for the above material(P1) the holding temerature exceeds to 650 deg celcius and holding temperatue exceeds to 2 hour, what will be the effect on Imapct, tensile and hardness proerties.
Thanks in advance for your valuabale reply.
Regards
Asad Azmi
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