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Bottom Plate thickness

thread1452-455374

Bottom Plate thickness

Bottom Plate thickness

(OP)
Dear All,

May I know, is there any criteria in API 650, that the thickness of the Bottom plate shall be equal to the thickness of the First Shell course.
Also, should the thickness of the Annular plate (if used) shall be equal to the thickness of the Bottom plate.

Thank you in advance,

Regards,
Jay,

RE: Bottom Plate thickness

Depending on the tank design, the bottom plate may be thinner, thicker, or the same as the first shell course. But see the limitations in E.6.2.1.1.3.
Usually, an annular plate is same thickness as the rest of the bottom, or thicker. I've never seen an annular plate thinner than the remainder of the bottom.

RE: Bottom Plate thickness

(OP)
Great ! Thank you so much @JStephen.

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