• Hardness Testing (HT)

  What is a example of hardness?

  Posted by thomas on 14/10/2021 at 3:50 pm

  “Hardness is a measure of how difficult or easy it is for a substance to be penetrated or scratched! For example, steel (like a steel nail) can scratch your fingernail, so steel is harder than fingernail!!”

  thomas replied 10 months ago 1 Member · 0 Replies
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