Difficulty: Easy
Correct Answer: High toughness
Explanation:
Concept
Shock-resisting steels must absorb impact energy without brittle fracture. The governing property is toughness (high area under the stress-strain curve in the plastic region).
Common pitfall
Confusing hardness or tensile strength with toughness. High hardness may increase brittleness, which is undesirable under shock loading.
Final Answer
High toughness
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