Material Selection For Sour Service Environment

摘要

Consider SSC. The NACE specification defines the SCC as the cracking of metal involving corrosion and stress- both residual and or applied-in the presence of H^sub 2^S and water. It is a type of hydrogen induced cracking (HIC) in which the primary poison is the evolution of atomic hydrogen. Process conditions involving wet hydrogen sulfide are called sour services. A high incidence of sulfideinduced HlC has resulted in the coining of the term sulfide stress corrosion cracking (SSC).