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How much is the Brinell hardness of troostite?

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in Casting-Forming-Welding II by (119k points)
How much is the Brinell hardness of troostite?

(a) 250

(b) 350

(c) 450

(d) 550

The question was posed to me by my school principal while I was bunking the class.

I'd like to ask this question from Transformation in Steel in portion Heat treatment of Metals and Alloys of Casting-Forming-Welding II

1 Answer

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by (65.4k points)

The correct answer is:

(c) 450

Troostite is a phase in steel that results from the transformation of pearlite when it is heat-treated at a particular temperature. It typically has a Brinell hardness value around 450.

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