5154 aluminum plate API 650 aboveground welded storage tanks

When API 650 storage tank is designed, when the design pressure is small F2 kPa, the impact of air pressure on the API 650 aboveground welded storage tanks tank wall thickness is not considered in the tank wall design.

The API 650 aboveground welded storage tanks stiffener ring and backing strip (if used) are primary components, and they shall comply with the requirements of API 620 storage steel tank Q.2.1. The stiffener rings may be fabricated from plate using an intermittent weld on alternating sides between the web and the flange.
Except for aluminum or stainless steel tanks, all fillet welds shall consist of a minimum of two passes. The ends of the fillet welds shall be 2 in. from the rat hole (see Figure Q-1), and these welds shall be deposited by starting 2 in. from the rat hole and welding away from the rat hole. An acceptable alternative to the detail that includes stopping fillet welds 2 in. short of the rat hole would be to weld continuously through the rat hole from one side of the stiffener to the opposite side. All craters in fillet welds shall be repaired by back welding.

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

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The results of adopting two-level API 650 aboveground welded storage tanks service system and implementing standardized management are mainly reflected in the formation of vigorous work style such as quick response and quick action. Our company's customer service center stipulates that employees must be accurate and quick in technical support and API 650 aboveground welded storage tanks after-sales service. Through the formation of this fast, agile, vigorous style, to provide users with satisfactory service.