Which of the following types of corrosion in which stainless steels are more susceptible than ordinary steels?(a) Pitting corrosion(b) Stress-corrosion cracking(c) Intergranular corrosion(d) Stress-corrosion cracking, pitting and intergranular corrosionI had been asked this question during an internship interview.The doubt is from Prevention topic in section Corrosion Prevention of Corrosion Engineering

Which of the following types of corrosion in which stainless steels ar

1.	Which of the following types of corrosion in which stainless steels are more susceptible than ordinary steels?(a) Pitting corrosion(b) Stress-corrosion cracking(c) Intergranular corrosion(d) Stress-corrosion cracking, pitting and intergranular corrosionI had been asked this question during an internship interview.The doubt is from Prevention topic in section Corrosion Prevention of Corrosion Engineering
Answer» The correct answer is (d) Stress-corrosion cracking, pitting and intergranular corrosion The best explanation: STAINLESS steels are more susceptible to localized corrosion such as intergranular corrosion, stress-cracking corrosion, and pitting corrosion than ORDINARY steels. Instability of oxide LAYER in severe corrosive conditions and sensitizing TEMPERATURE are the reasons for the susceptibility of stainless STEEL.

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