5083 aluminum tube API 650 SUG I tanks

Temperature Range: The provisions in this appendix are considered suitable for API 650 SUG I tanks design metal temperatures from + 40°F to –60°F, inclusive. In general, refrigerated tank primary components include those components whose failure would result in leakage of the liquid being stored, those exposed to the refrigerated temperature, and those subject to thermal shock. Further definitions of such components are provided in API Standard 620 tank R.1.4.2 and R.1.4.3.

This standard establishes minimum requirements for API 650 tank material, API 650 SUG I tanks design, fabrication, erection, and inspection for ertical. aboveground，closed- and open-top.

The water dissolved in the oil will be separated out from the oil stored in the API 650 SUG I tanks for a long time, and the acidic water layer will appear at the bottom of the API 650 SUG I tanks for a long time, which will accelerate the corrosion of the API 650 SUG I tanks and cause the wall thinning and even leakage. With the increase of service life, the API 650 SUG I tanks must be inspected and cleaned regularly to check the hidden danger.