Rockwell Hardness test result: the ultimate guide

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How to correct Rockwell hardness test results on round, spherical and cylindrical objects

Because of its wide use, the Rockwell hardness test is often used to measure the hardness of round or cylindrical objects, such as shafts and metal tubes.

However, when testing hardness on non-flat surfaces, it is important to take into account the effect of non-flatness of the samples on the results.

This is because a not perfectly flat object can cause errors in the test results due to uneven force distribution. The hardness values will consequently not be true and accurate.

Reference standards help us in this. ASTM-E18 and ISO-6508 show how to easily correct results.

Just 3 steps are needed, discover it and download the tabel clicking the link below!

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