The highest design temperature of API 650 duplex stainless steel tanks

BBN excels in the design, fabrication and erection of API-650 tanks. API (American Petroleum Institute) has created a set of standards for above ground API 650 duplex stainless steel tanks oil storage, but these tanks are also commonly used for gasoline, chemical and water storage. API-650 storage tank solutions range in size from an 8’ -0” diameter shop fabricated tank up to and beyond 100’ -0” diameter field erected storage tank applications.

The horizontal projection of the roof plate within the compression-ring region is 4.9 x 0.866 = 4.25 in., which fulfills the requirement of API 620 tank standard 5.12.5.1. The required area and horizontal projection can be provided by any of the standard angles listed in Table F-3.
Any of these angles may be used in accordance with the details of Figure 5-6, detail a or b, but if details c, h, or i in Figure 5-6 were intended, the net area of the angle must be calculated by deducting the area expected to be lost by corrosion from that part of the angle surface that is exposed to the interior of the tank.

The water dissolved in the oil will be separated out from the oil stored in the API 650 duplex stainless steel tanks for a long time, and the acidic water layer will appear at the bottom of the API 650 duplex stainless steel tanks for a long time, which will accelerate the corrosion of the API 650 duplex stainless steel tanks and cause the wall thinning and even leakage. With the increase of service life, the API 650 duplex stainless steel tanks must be inspected and cleaned regularly to check the hidden danger.

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Our company will accept the product quality objection registration record, pass it to the API 650 duplex stainless steel tanks production unit and relevant departments, and timely coordinate the supervision of product API 650 duplex stainless steel tanks quality objection. Our company coordinates the relevant department personnel to the customer unit to carry on the investigation, the processing.