| Brinell | Johan A., Swedish metallurgist, 1849-1925. See: Brinell hardness number. (05 Mar 2000) |
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| Brinell hardness number | A number related to the size of the permanent impression made by a ball indenter of specified size (usually 10 mm in diameter) pressed into the surface of the material under a specified load: where P = applied load in kg, D = diameter of the ball in mm, and d = diameter of the impression in mm. (05 Mar 2000) |