Question

materials can not tasted by brinall hardness test​

Answer 1

Explanation:

Brinell hardness testing is typically used in testing aluminum and copper alloys (at lower forces) and steels and cast irons at the higher force ranges. ... Highly hardened steel or other materials are usually not tested by the Brinell method.

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Answer 2

Answer:

4. Precautions:-  Thickness of the specimen should not be less than 8 times the depth of indentation to avoid the deformation to be extended to the opposite surface of specimen.  Indentation should not be made nearer to the edge of a specimen to avoid unnecessary concentration of stresses