High degree of toughness is a must for__________________?
Correct answer: B. Shock resisting steel
- A. High speed steel
- B. Shock resisting steel
- C. Cold work tool steel
- D. None of these
Explanation
Shock-resisting steels must absorb sudden impact without cracking, so high toughness is their defining requirement. High-speed and cold-work tool steels are selected primarily for hot hardness, wear resistance or dimensional stability.
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