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The temperature required for full annealing in hypereutectoid steel is

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The temperature required for full annealing in hypereutectoid steel is

Answer & Solution
Correct Answer: Option C
Full annealing is the process of slowly raising the temperature about 50 ºC (122 ºF) above the Austenitic temperature line A3 or line ACM in the case of Hypoeutectoid steels (steels with < 0.77% Carbon) and 50 ºC (122 ºF) into the Austenite-Cementite region in the case of Hypereutectoid steels (steels with > 0.77% Carbon).
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4 Comments
Ashish Behera
Ashish Behera 5 years ago
C is correct
Deep Patel
Deep Patel 7 years ago
Option A is correct
BHANU PITHANI
BHANU PITHANI 7 years ago
Correct answer is option c
Temp required for hypoetuctiod < 0.8 steel in full annealing = above upper critical temperature

Temp required for hyperetuctiod >0.8 steel in full annealing = above lower critical temperature
Tanweer Ansari
Tanweer Ansari 8 years ago
correct answer is A
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