Explanation of Yamane's SSC model using an idealized anodic polarization curve. The image on the left illustrates the SSC of ASTM A203 Grade E (3% Ni) QDT (quench and double temper) stressed to 90% of yield and failed in 420 hours. Nital etch. After Craig, B. D., Brownlee, J. K. & Bruno, T. V. Sulfide stress cracking of nickel steels. Corrosion 48, 90-97 (1992).