Shore Or Rebound Hardness Test by Scleroscope

The shore scleroscope consists of a small diamond pointed hammer of very small weight ( about 2.4 g) which is allowed to fall freely from a height of 250 mm down a glass tube graduated into 140 equal parts . The height of the rebound is taken as the index of the hardness. This test is used for testing rolls and other machine components, and the instrument can be carried about in workshop. Shore value multiplied by 6 gives roughly the BHN on steels.

The scleroscope is very useful for testing the hardness of case - hardened surface which provides a very small hardness of the skin of the surface of the material.

Micro hardness test by Vickers Test Method

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Mechinopedia For Mechanical Engineers

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