API standard 650 stainless and carbon steel tank hatches

API 650 external floating roof storage tanks are generally called external floating roof API standard 650 stainless and carbon steel tank tanks, which means that the storage tanks are externally open tanks without a dome design, and are equipped with vertical floating roofs. API 650 external floating roof storage tanks are usually used for large More than 20,000 cubic meters of open steel API standard 650 stainless and carbon steel tank storage tanks for storing volatile petroleum products such as crude oil, gasoline, kerosene, etc.

Oil tank is often used to store crude oil, diesel oil, gasoline and other oil. The main structure of API standard 650 stainless and carbon steel tank is composed of tank top, tank wall, tank bottom and accessories. The API standard 650 stainless and carbon steel tank should be inspected after the completion of construction, and the detection methods of different structure positions are different. Tank wall inspection: for the newly built oil tank, water filling test shall be conducted to check whether the tank wall is tight, and the appearance inspection shall be conducted for the tank wall plate and weld. Tank wall thickness detection: the oil tank wall thickness is mainly detected by ultrasonic wave, with high efficiency.

API 620 Steel Oil Tank Bottom and Shell Support
The tank API standard 650 stainless and carbon steel tank under-bottom insulation shall be designed to resist the combined pressures from the product load, the overturning seismic load and the vertical seismic load. These seismic pressures may be combined by SRSS.
The bearing ring under the shell shall be designed to resist the calculated OLE peak compressive force in the tank shell due to overturning (see API 650 oil tank, Section E.6.2.2), including dead and live loads. A 33 % increase in allowable bearing stress is permitted.

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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 standard 650 stainless and carbon steel tank, 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.