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What kind of indenter is used in a Brinell test?

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What kind of indenter is used in a Brinell test?

(a) Diamond cone

(b) Steel ball

(c) Pen dot

(d) Long tube

The question was posed to me by my college director while I was bunking the class.

My question is taken from Hardness Tests on Metals in chapter Wear of Metals, Mechanical Properties and Testing of Engineering Material & Metallurgy

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The correct answer is (b) Steel ball

Explanation: Brinell Hardness Test is one of the three available tests for checking the hardness of a material. Here, a hardened steel or tungsten carbide ball indenter is forced into the surface of the metal to be tested.

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