Technical requirements for the design of 30 cubic meters above ground horizontal storage tank

Q345R steel plates for equipment shall comply with GB713-2014 and shall be supplied in a hot-rolled state; Ultrasonic testing shall be carried out one by one, and the qualified level ratio shall be lower than that of Class II; Manhole flange covers shall be supplied in a normalized state, and shall be subjected to a low-temperature impact test at -20°C. The impact energy is not less than 41J. 10 steel pipes for equipment shall comply with the provisions of GB9948-2013 and shall be supplied in a normalized state. The 16Mn forgings for equipment shall meet the requirements of Class II in NB/T47008-2010, and shall be supplied in a normalized state, and shall be subjected to a low-temperature impact test at -20°C, and the impact energy shall not be less than 34J.