PWHT in SFPC

Heat treatment on six spherical tanks in Salman-farsi petrochemical complex, Maahshahr-Iran that accomplished by Hamedsoft engineering company in 17 March 2024. Tank detailed as below:

55T001 and 55T002
- Dia : 15,500 mm
- Maximum Thickness: 65mm
- PWHT Process detail:
  - Average heating rate: 65’C/Hh
  - Holding temperature: 599 ~ 649 ‘C
  - Average cooling rate: 56’C/hr
52T001 A,B,C, D
- Dia : 23,000 mm
- Maximum Thickness: 84mm
- PWHT Process detail:
  - Average heating rate: 50’C/Hh
  - Holding temperature: 599 ~ 649 ‘C
  - Average cooling rate: 48’C/hr