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Pitting Acceptance Flowchart API 653 by Mahmoud Refaat is a document available to read on EtoBox.

The flowchart outlines the evaluation process for pitting in tank shells as per API 653 §4.3.2.2. Shallow pits within the corrosion allowance are acceptable, while deeper pits must maintain a minimum thickness of at least 0.5 times the required thickness. Additionally, the total diameter of pits on any 8-inch vertical line should not exceed 2 inches if the thickness condition is met.

Author
Mahmoud Refaat
Language
EN