Introduction Mechanical integrity is one of the most important barriers between normal refinery operation and a major accident. In simple terms, mechanical integrity is the assurance that pressure equipment, piping, tanks, heaters, valves, flanges, small-bore connections and associated components are suitable for their intended service and remain fit for continued operation. It is not just about inspection. It is not …
Chloride Stress Corrosion Cracking (SCC) is a type of corrosion that can occur in metal alloys, especially in those that are used in corrosive environments. It occurs when metal components are exposed to both tensile stress and chlorides, forming cracks in the material. The damage caused by Chloride SCC can be severe and can result in material failure, leading to …
When most hear the words Stress Corrosion Cracking (SCC), our minds immediately start thinking of Chloride induced SCC in stainless steels or Sulphide SCC. However, In March 2019, Step Change in Safety issued a Safety Alert about slightly less common phenomena of Methanol Stress Corrosion Cracking in Carbon Steels. The incident occurred on an outlet line from a …