Say we have fabricated equipment with various thickness starting from as low as 10 mm to 80 mm . When i consider it for PWHT in furnace , how to calculate holding time ?
With reference to ASME Section VIII Division 1, where can we find interpass and post heating (not pwht) temperature? If it isn't present in the code, what are some relevant sources?
Selection of the maximum interpass temperature is minimum preheat temperature plus some additional temperature. Post heating is determined by metalurgist(welding engineer) based on phase formation intended.
Say we have fabricated equipment with various thickness starting from as low as 10 mm to 80 mm . When i consider it for PWHT in furnace , how to calculate holding time ?
With reference to ASME Section VIII Division 1, where can we find interpass and post heating (not pwht) temperature? If it isn't present in the code, what are some relevant sources?
Selection of the maximum interpass temperature is minimum preheat temperature plus some additional temperature. Post heating is determined by metalurgist(welding engineer) based on phase formation intended.