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In-Line Inspection of Clad and Lined Pipes

The use of corrosion resistant alloys (CRAs) for pipelines has significantly increased in the past decades. When compared to carbon steel, CRA materials can prevent corrosion under certain conditions. Their effectiveness depends on the selection of the proper alloy for the expected operational conditions of the pipeline. Clad and lined pipes typically consist of a low-cost carbon-steel backing substrate and an inner CRA material metallurgical or mechanically bonded to it. Clad pipes show a good balance of material costs, mechanical properties of the carbon-steel backing and corrosion resistance of the internal CRA layer.

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