5454 aluminum plate API standard 650 aboveground petroleum storage tanks

Requirements for prefabrication of bottom plate of large vertical API standard 650 aboveground petroleum storage tanks:
1. The diameter of tank bottom should be enlarged by 0.1% ~ 0.15% according to the design diameter.
2. The minimum dimension of edge plate along the radius direction of tank bottom shall not be less than 700mm.
3. The distance between any adjacent welds of the base plate shall not be less than 300 mm.

To provide customers with the most satisfactory service and realize the win-win of economic and social benefits, our company promises to provide excellent API standard 650 aboveground petroleum storage tanks products in this bidding, and in line with the attitude of being serious and responsible to customers, before sending goods to users, the API standard 650 aboveground petroleum storage tanks technical personnel shall confirm that there is no fault in the equipment before sending goods to users, and then send goods and products to users, and formulate the following service terms.

The ring of API standard 650 aboveground petroleum storage tanks annular plates shall have a circular outside circumference, but may have a regular polygonal shape inside the tank shell with the number of sides equal to the number of annular plates. These pieces shall be butt-welded in accordance with API Standard 620 R.7.1.1, Item b. The plates of the first shell course shall be attached to the annular bottom plates by welds as required by API Standard 620 5.9.5 except when a full penetration weld is used or required.

API 650 stipulates that an open tank should be provided with a wind-resistant ring to ensure that the API standard 650 aboveground petroleum storage tanks tank body maintains its roundness when subjected to wind. There are no hard and fast rules for vault API 650 storage tanks. It can be determined by comparing the equivalent wall height with the maximum height of the unreinforced tank wall.