API 650 welded tanks for oil storage maximum longitudinal shell-membrane compression stress

Floating roofs shall comply with API standard 650, Appendix C (Attachment 01) or with the API 650 welded tanks for oil storage requirements as layed (laid )down in the national Chinese specifications SH3046-92 and GBJ128-90.

Static storage loss is also known as "small breathing" consumption. The rise and fall of the temperature in the API 650 welded tanks for oil storage leads to the increase and decrease of the pressure in the tank, which makes the mixed oil gas discharged from the tank, and the external air is sucked into the tank, resulting in the oil consumption. Fluid level loss is also called "big breathing" loss. It is the oil consumption caused by the change of gas space volume in the API 650 welded tanks for oil storage during the oil receiving and sending operation, which causes the mixed oil gas to be discharged out of the tank, and the external air is sucked into the tank, resulting in the oil consumption due to the change of liquid level height.

Ultrasonic Examination of Butt-welds in Plates
Butt-welds in all tank wall courses subjected to a maximum actual operating membrane tensile stress, perpendicular to the welded joint, greater than 0.1 times the specified minimum tensile strength of the API 650 welded tanks for oil storage plate material shall be completely examined.
Butt-welds in API 620 oil tank wall courses subjected to maximum actual operating membrane tensile stress, perpendicular to the welded joint, less than or equal to 0.1 times the specified minimum tensile strength of plate material shall be spot examined in accordance with Figure Q-2.

The company has a group of experienced steel plate continuous processing line construction, production management, operation and professional and technical personnel. The company is a modern enterprise integrating scientific research and development, production processing, sales and service. Our main products include hot rolled plates, seamless pipes, API 650 welded tanks for oil storage and steel structures. At the same time, it also adheres to international standards and adheres to the international line.

Iron and steel goods, including pig iron, ingots, all kinds of steel and so on. Therefore, logistics companies are required to load evenly and evenly in the process of transportation, prevent moisture and prevent corrosion. It is necessary to prevent the API 650 welded tanks for oil storage steel sheet from being mixed with water when transporting the steel; it is necessary to prevent the API 650 welded tanks for oil storage steel from being mixed with water when transporting the steel; it is necessary to prevent the steel from being mixed with water when transporting the steel; it is necessary to prevent the steel from being mixed with water when transporting the steel; it is necessary to prevent the steel from being mixed with water when loading the API 650 welded tanks for oil storage steel sheet on the truck Good luck.