Rodrigo Signorelli, Outokumpu, Brazil, discusses the material challenges for engineers when specifying flowlines and risers, and shares insight into pipeline technologies and the role of corrosion resistant alloys (CRA). In the field, corrosion resistance provides safety, long life, process continuity, and control of risk. However, purchasing priorities vary widely depending on the application, the environment, and the preferences of the end customer and its supply chain partners. Engineers typically start thinking about pipeline materials early in the project cycle when they need to produce budget estimates for risers, flowlines, jumpers, and fluid transfer lines. They need CRAs in the form of strip, coil and plate for fabrication into flexible pipes, tubes for umbilicals, mechanically lined pipe (MLP), and clad pipe.
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