Stress corrosion cracking (SCC) is the unexpected failure of
normally ductile metals subjected to a tensile stress in a
corrosive environment. SCC is highly chemically specific in that
certain alloys are likely to undergo SCC only when exposed to
certain corrosive environments. Sulfide stress cracking (SSC) is
a form of hydrogen embrittlement which is a cathodic cracking
mechanism. Susceptible alloys, especially steels, react with
hydrogen sulfide, forming metal sulfides and atomic hydrogen,
which causes SSC. This section provides access to reports that
present test results and evaluate the resistance to SSC/SCC of
various materials when exposed to different corrosive
environments.