Pipeliners Dictionary

There are several types of corrosion that can occur in pipelines


  1. Uniform Corrosion: This type of corrosion affects the entire surface of the pipeline evenly and causes a gradual thinning of the material over time.

  2. Pitting Corrosion: This type of corrosion is localized and causes small, isolated holes or "pits" to form in the metal surface.

  3. Galvanic Corrosion: This type of corrosion occurs when two different metals with different potentials are in contact and create an electrochemical reaction.

  4. Crevice Corrosion: This type of corrosion occurs in small crevices or areas where fluid is stagnant and can cause severe localized corrosion.

  5. Stress Corrosion Cracking (SCC): This type of corrosion occurs under the combined influence of tensile stress and corrosive environment.

  6. Corrosion under Insulation (CUI): This type of corrosion occurs when the pipeline is insulated, and moisture is trapped between the insulation and the pipeline, causing corrosion to occur.

  7. Microbiologically Influenced Corrosion (MIC): This type of corrosion is caused by the presence and activity of microorganisms in the pipeline environment, which can produce corrosive by-products.

It's important to identify and prevent the types of corrosion that are specific to a pipeline's environment and operating conditions in order to maintain the integrity and reliability of the pipeline over time.

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