API standard 650 carbon and low-alloy steel tanks lap-welded bottom joints

The tank 20-in. inside-diameter nozzle shown in Figure F-6 is located in solid plate in the sidewall of a cylindrical storage tank 148 ft in diameter in an area where the thickness of the wall plate, tw, is 11/2 in. A corrosion allowance of 0.10 in. is required on all surfaces of the tank exposed to the stored liquid. The total internal pressure, Pl + Pg, at the center of the opening is 24.9 lbf/in.2 gauge. The thickness of the API standard 650 carbon and low-alloy steel tanks wall plate, t, required by 5.10.3 for the latitudinal unit forces, T2, acting at this level is 1.44 in.

The American standard API 650 design has been widely used. We can use our existing professional design knowledge to serve the construction projects of large API standard 650 carbon and low-alloy steel tanks storage tanks, oil tanks and water tanks. The company is a small and medium enterprise that can provide American standard API 650 design software, design qualifications, and design capabilities.

BBN had provided API standard 650 carbon and low-alloy steel tanks Hardox plates for more than 15 years for widely applied in coal mining machinery, cement equipment, road construction machinery, engineering machinery, dump trucks, metallurgical area and port fields. In 2016,we brought our customer to visit our API standard 650 carbon and low-alloy steel tanks NM400 steel plate producing line and our Shanghai warehouse for 30000 tons plate and structure. As a result, Our client purchased 500 tons NM 400 as first order, which is shipped by 3 times. In future, BBN will always guarantee that all the delivery condition for Hardox plate provided will be with quenching and tempering, which is the best delivery type according GBT 24186 standard.

Oil storage tank with floating roof structure: The floating roof in the API standard 650 carbon and low-alloy steel tanks oil storage tank can effectively reduce the volatilization consumption of oil, because the gas space on the oil liquid surface in the floating roof storage tank is small, the exhaust volume is low, and the breathing loss is very small. That can reduce the volatilization loss caused by the "big breath" of the API standard 650 carbon and low-alloy steel tanks. Strengthen the inspection and maintenance of API standard 650 carbon and low-alloy steel tanks: regularly check the sealing conditions of oil storage tanks, and check and maintain important auxiliary equipment to ensure good sealing performance.

The company strengthens process management and pays attention to assessment. One of the key points of good service is to strengthen the process management and improve the evaluation mechanism. Make the after-sales service system more perfect and provide better service for customers.