5454 aluminum pipe API 650 aboveground oil storage tanks
API 650 aboveground oil storage tanks Nondestructive testing is a technical means to detect the weld defects of large vertical tank and judge whether the weld is qualified by using the characteristics of sound, light, magnetism and electricity without damaging the tested object. Common nondestructive testing methods: ultrasonic testing (UT), magnetic particle testing (MT), liquid penetrant testing (PT) and X-ray testing (RT).
API 620 crude oil tank piping materials made according to ASTM A333 and A350 may be used at API 650 aboveground oil storage tanks design metal temperatures no lower than the impact test temperature required by the ASTM specification for the applicable material grade without additional impact tests. For temperatures below those allowed by the ASTM specification, the following paragraph shall apply.
The calculated thickness of the above-mentioned wall panels required by the hydrostatic pressure is also It API 650 aboveground oil storage tanks should be increased by the same ratio, unless special analysis is performed to determine the seismic overturning moment and the corresponding stress at the bottom of the wall of each layer of API 650 tank. =====API 650 storage tank stipulates that if the thickness of the lower wall panel obtained by calculating the anti-overturning moment is greater than the thickness of the API 650 aboveground oil storage tanks hydrostatic pressure test (both do not include the corrosion allowance).
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