API Std 650 partially anchored liquid-storage tanks shell-to-bottom fillet welds

For areas with high groundwater levels, the operator should take anchoring and anti-floating measures for buried horizontal API Std 650 partially anchored liquid-storage tanks oil tanks; API 650 oil tanks can be used for heavy fuel oil, heaters are separately designed, and buried tank material outlets are installed with bottom valves and connections. consider.

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Allowable Design Stresses
The maximum allowable design stresses for the API Std 650 partially anchored liquid-storage tanks materials outlined in Q.2.1 shall be in accordance with Table Q-3.The values for the allowable design tensile stress given in Table Q-3 for materials other than bolting steel are the lesser of (a) 331/3% of the specified minimum ultimate tensile strength for the material or (b) 662/3% of the specified minimum yield strength, but they are 75% of the specified minimum yield strength for the stainless steel, nickel alloy, and aluminum materials. Allowable test stresses are based on the limitation of API 620 oil tank storage standard Q.8.1.3.