The energy sector has passed through various atmospheric and process environmental challenges. How big is the challenge? It depends on the region, application, process media, and industry. It is also not limited to these factors. One of these challenges is Chloride Induced Stress Corrosion Cracking (CISCC).
CISCC is one of the most common reasons for steel deterioration. It attacks austenitic stainless steel components in the petrochemical industry.
Corrosion can lead to catastrophe. It has the potential to discharge toxic substances and stored energy. Austenitic stainless steels are iron-based alloys that contain 19 percent chromium and 9 percent nickel. These steels have high corrosion resistance in most aqueous and atmospheric settings because of passivation by a thin layer of chromium oxide. Humid and wet environments containing chloride ions can cause pitting. It also causes crevice corrosion of austenitic stainless steel components.
Many companies use 300 series stainless steel. It offers excellent resistance to general corrosion. However, even 300 Series stainless steel is susceptible to CISCC.Continue reading