Which of the following material is seldom used for pressure vessel construction ?
Correct answer: B. Rimmed still
- A. Mild steel
- B. Rimmed still
- C. Killed steel
- D. Semi-killed steel
Explanation
Rimmed steel contains more dissolved gases and has poorer uniformity and weldability than killed or semi-killed steel. Pressure vessels therefore commonly use killed steels or suitable alloys instead.
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