API 650 stainless and carbon steel tank weld metal

Requirements for prefabrication of bottom plate of large vertical API 650 stainless and carbon steel tank:
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.

When the anchorage is designed to meet the requirements of API Standard 620 tank Q.3.6.4.2, the foundation should be designed to resist the uplift that results from three times the design pressure with the tank full to the design liquid level. When designing to any of the conditions in this paragraph, it is permissible to utilize friction between the soil and the vertical face of the ringwall and all of the effective liquid weight.

This API 650 tank standard is designed to provide industry with tanks of adequate safety and reasonable economy for use in the API 650 stainless and carbon steel tank storage of petroleum, petroleum products. and other liquid products.

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