Very high sulphur in pig iron makes ___________________?
Correct answer: A. Its casting unsound
- A. Its casting unsound
- B. Its hard and machinable
- C. Its brittle and malleable
- D. All A., B. & C.
Explanation
Excess sulphur in pig iron promotes brittleness and causes hot-shortness, so castings may crack or become unsound. It does not make the iron both hard and machinable or brittle and malleable.
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