What is governing thickness
Pl. calculate rate of heating as per ASME SEC VIII
It shall not be more than the calculated rate of heating
Steady Slope etc are not addressed.
No issue as per as weldment/parent material properties are concerned
On Mon, Aug 17, 2020 at 7:33 AM Kandula Raju <rgkandula@gmail.com> wrote:
Dear Experts,--We have completed post weld heat treatment of weld overlay in a large automatic programmer electrical furnace according to API6A and ASME Sec VIII Div.1, as per WPS heating rate shall be 100degree C per hour, so we have set heating rate from 300 to 600 degree C in 3 hours, however since its programme is computer controlled, we are reaching 100 degree C in 45 min instead of 1 hour and 15 min holding at each 100 degree progression, as per our customer heating rate shall have regular slope without any holding. Attached heat treatment chart for your review.Please do advice does it have any effect on weldment properties and is any code governs or states heating rate slope shall be steady.
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