A Rockwell A test was conducted on a material and a penetration depth of 0.15mm was recorded.

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Question:

A Rockwell A test was conducted on a material and a penetration depth of 0.15mm was recorded. a) What is the hardness of the material? b) What material would typically have such a hardness value? c) If the Brinell hardness test were to be conducted on this material, estimate the indentation diameter if the load was 1500