Cemented Carbide Tool Hardness Comparison Table - Part1

Cemented carbide tool hardness (Hardness) Code H. Different hardness test method, the conventional representation Brinell hardness (HB), Rockwell hardness (HR), Vickers hardness (HV), Shore hardness (Hs), Leeb hardness (HL), which hard Brinell hardness and Rockwell hardness in the hardness of the alloy tool more commonly used, the contrast between the hardness of cemented carbide tool table complete the conversion between different representations.

Called Brinell hardness (HB), is that when the ball indenter is pressed into the surface of the test material, the pressure in the test surface the pit required load is divided by the residual dimple diameter calculated from the pit surface area quotient.

The ball is certainly better than the test material hard. If the ball is forcibly pressed into the hard material than it, will cause damage to the ball, and so can not test it hard material.