Brinell Hardness Number Test Calculator

Load (P) : Kilogram Force
Steel Ball Diameter (D) :millimeter
Depression Diameter (d) :millimeter
Brinell Hardness Number (BHN) :

The Brinell hardness typical test uses a 10 millimetres (0.39 in) diameter steel ball and the lod force is 3,000 kgf force.

Brinell Hardness Number Test Formula

BHN = (2*P) / [ (pi*D)(D - sqrt(D2-d2)) ]

For example, when Loda force is 3000 kilogram force, steel ball diameter is 10 millimeter, depression diameter is 9 millimeter, the Brinell Hardness Number (BHN) will be 33.87331668681452.

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