API standard 650 carbon and low-alloy steel tanks design loads

We can process the steel materials according to your drawing. Or if you can not make drawing, please send us API standard 650 carbon and low-alloy steel tanks specific data and requirements, our technical department can make design and drawing for you, and then confirm with your technician or engineer. If all is OK, our processing center will process the steel materials according to the drawing. So no matter what size and shapes you need, we can meet demands at the most time.

During heavy rain, closely observe the change of the water level in the storage area of the API standard 650 carbon and low-alloy steel tanks. If the water level rises to the dangerous range, drain the water immediately. There are more thunderstorms in heavy rain, and lightning protection devices should be installed in the API standard 650 carbon and low-alloy steel tanks area to avoid lightning accidents. Observe the groundwater level of the API standard 650 carbon and low-alloy steel tanks area at any time, clean and dredge the drainage ditch in time to ensure unobstructed drainage, and prevent the bottom of the API standard 650 carbon and low-alloy steel tanks from leaking and rusting due to untimely drainage.

In this project a cylindrical tank 75 ft in diameter is designed for an internal pressure of 0.5 lbf/in.2 gauge in the vapor space. The plate material is ASTM A131 Grade B steel for thicknesses of 1/2 in. and less.
The top course of the butt-welded cylindrical sidewall is 1/4 in. thick. The tank API standard 650 carbon and low-alloy steel tanks roof is a conical shape with a 2:12 slope and a 1/4 in. thickness with single full-fillet welded lap joints. The maximum design liquid level is 6 in. below the plane of juncture of the roof and sidewall.