double-deck roof API Std 650 floating-roof tanks
The API 650 is the American standard for welded flat-bottomed vertical API Std 650 floating-roof tanks storage tanks. This standard dictates tank design, manufacture, welding, inspection and installation requirements.
Usually, the wind load in the API Std 650 floating-roof tanks construction area should be considered before the tank design and construction. The wind load in the API Std 650 floating-roof tanks construction area has an impact on the stability and economy of the API Std 650 floating-roof tanks. In the area with large wind load, it is safe to design the tank as "squat". When calculating the wind force, the influence of the thickness of the insulation layer of the API Std 650 floating-roof tanks, the shape of the ladder, the platform, the pipeline and the top cover must be considered.
The impact tests for API 620 welded storage tanks used pipe (including structural members made of pipe), bolting, and forgings, shall be in accordance with ASTM specifications ASTM A333 (seamless only) pipe, ASTM A36 Mod 1 plate, ASTM A131 Grades CS, D, and E steel plate, ASTM A633 Grade A CSA G40.21 Grades 38WT, 44WT and 50WT high-strength low-alloy structural steel plate, ASTM A350 carbon and low alloy steel forgings, and ASTM A320 Grade L7 bolts.
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BBN Steel Company adheres to the marketing concept of "first-class technology, first-class steel quality, and first-class logistics services". It is our goal to build high-quality carbon steel API Std 650 floating-roof tanks, alloy steel plates and high-strength structural steel plate international-class boutique bases. Our logistic team will make customs clearance documents, track products production process, and update shipping information for customers. Creating value for customers is our pursuit.
