RR298 - Chloride stress corrosion cracking of duplex stainless steels in the absence of oxygen

Failure of offshore equipment leading to release of hydrocarbons has potentially serious implications and early detection is fundamental to reduce the risk and prevent costly and, in some cases potentially catastrophic events. One important source of such releases is corrosion related failures of offshore process plant. Following failures of duplex stainless steel in 2001/2002 resulting from chloride stress corrosion cracking, the Health and Safety Executive commissioned a review of the offshore operation of duplex stainless steel process plant with respect to chloride stress corrosion cracking. This report reviews what experimental techniques and what commercially available technologies may be applicable to monitoring duplex stainless steel process plant operating at high temperature.

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Updated 2021-04-19