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The critical range of steel is between ______(a) 1300°F and 1600°F(b) 2400°F and 2600°F(c) 900°F and 2800°F(d) 900°F and 2400°FI got this question in quiz.This intriguing question comes from Heat Treatment Terms topic in chapter Physical Test & Heat Treatment Terms of Aerospace Materials & Processes

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Right ANSWER is (a) 1300°F and 1600°F

The explanation is: The critical RANGE of steel is between 1300°F and 1600°F. Critical range of a material refers to the range between which internal change OCCURS in a metal. It is important in a LOT of heat treatment methods.



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