Is single-sided corrosion considered in ASME flange calculations?

2012-03-23View Original

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For a carbon steel piece of equipment for which the corrosion rate is 3.2, should corrosion be taken into account in the calculations related to its flanges? If so, should it be considered on one side only (3.2) or on both sides (6.4)?

Reply #22012-03-23

Flange calculations take all dimensions into account; this is clearly specified in the standards.

Reply #32012-03-23

What do you mean by net size? When calculating flanges in China, I take into account the corrosion allowance. For example, for DN1000, the corrosion allowance is 1; when calculating the flange, should the inner diameter of 1002 be entered? Is there any problem with that?

Reply #42012-03-23

Correct! All dimensions in the calculations do not include a corrosion allowance.

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Is single-sided corrosion considered in ASME flange calculations?

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