Heat treatment on spherical tank in Hilla-IRAQ passed by Hamedsoft engineering company in December 2014. Tank detailed as below:

• Dia : 18 m
• Maximum Thickness: 55mm
• Average heating rate: 55’C/Hh
• Holding temperature: 595 ~ 630 ‘C
• Average cooling rate: 65’C/hr

Ambient temperature : 22’c