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Which materials are to be tested using an F-scale?

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Which materials are to be tested using an F-scale?

(a) Copper and brass

(b) Case hardened steels

(c) Bronze, gunmetal, and beryllium copper

(d) Thermoplastics

The question was posed to me during an interview.

I need to ask this question from Hardness Tests on Metals topic in division Wear of Metals, Mechanical Properties and Testing of Engineering Material & Metallurgy

1 Answer

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Correct option is (a) Copper and brass

The explanation: The Rockwell hardness F-scale uses a 1/16 inch diameter steel ball indenter with a total indenting load of 60 kg. This is used for testing of copper and brass.

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