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Mechanical Engineering - Machine Design - Discussion

Discussion Forum : Machine Design - Section 5 (Q.No. 18)
Machine Design
18.
The temperature required for full annealing in hyper-eutectoid steel is
50°C above upper critical temperature
50°C below upper critical temperature
50°C above lower critical temperature
50°C below lower critical temperature
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
12 comments Page 2 of 2.
Shivaprasad said:   7 years ago
The Correct answer is A. Ref: R S Khurmi.
Vanraj Gajarotar said:   6 years ago
C is a right answer because 50° above upper critical temperature is for hypo eutectoid steel and 50° above lower critical temperature is for hypereutectoid steel.
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