Stress Corrosion Cracking
Stress corrosion cracking (SCC), common in austenitic stainless steels, is cracking that occurs from the combination of stress and corrosion. Halides, in particular chlorides, even in small amounts, are often associated with SCC. The stress required includes the loading on the part and residual loads. The heat affected zones of welds are often the site of SCC. SCC if often intergranular, but it can also be transgranular.