Which of the following materials is susceptible to CO² corrosion?
Which of the following materials is susceptible to CO² corrosion?
Of the given materials, carbon steel is the one that is susceptible to CO2 corrosion. Carbon dioxide can react with the steel to form iron carbonate, which can lead to further corrosion if the protective layers are damaged. Conversely, stainless steel and duplex stainless steel have higher chromium and nickel contents, which provide them with significant resistance to CO2 corrosion. Thus, carbon steel is correctly identified as the material susceptible to CO2 corrosion.
Carbon steel and low-alloy steels are affected to CO2 Corrosion. Increasing the level of chromium in steels offers no major improvement in resistance until a minimum of 12 % Cr is reached, i.e. Type 410 SS. 300 series austenitic SS is highly resistant to CO2 corrosion.