Caustic embrittlement is a form of stress corrosion cracking characterized by surface-initiated cracks that occur in piping and equipment exposed to caustic, primarily adjacent to non-PWHT welds. Which of the following materials is the most resistant to embrittlement?

Question

Quizplus · Accepted Answer

Nickel based alloys are the most resistant to caustic embrittlement due to their high nickel content, which increases their resistance to corrosion and cracking. Carbon steel, low alloy steels, and 400 series stainless steel are more susceptible to caustic embrittlement.

Caustic Embrittlement Is a Form of Stress Corrosion Cracking Characterized