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Metallurgy - Principles and Processes - Class XII
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Hardened steel on heating in the range of $220^{\circ} C$ to $330^{\circ}C$ and on slow cooling gives :
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A
hard and tough steel
💡 Explanation:
Hardened steel on heating in the range of $220^{\circ} C$ to $330^{\circ}C$ and on slow cooling gives Hard and tough steel.