Brinell hardness number


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Related to Brinell hardness number: Vickers Hardness Number

Bri·nell hard·ness num·ber (BHN),

(bri-nel'),
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.
Farlex Partner Medical Dictionary © Farlex 2012

Brinell,

Johan August, Swedish metallurgist, 1849-1925.
Brinell hardness number - a number related to the size of the permanent impression made by a ball indenter of specified size pressed into the surface of the material under a specified load.
Brinell scale
Medical Eponyms © Farlex 2012

Bri·nell hard·ness num·ber

(BHN) (bri-nel hahrdnĕs nŭmbĕr)
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.
Medical Dictionary for the Dental Professions © Farlex 2012
References in periodicals archive ?
Tensile strength had dropped to 28,000 psi and Brinell hardness numbers averaged 170.
Most familiar to cast iron producers and users is the Brinell hardness number (HB), followed closely by the Rock-well [(R.sub.c)] the subscript refers to load details.
The diameter of the resultant impression is then measured with a microscope and a Brinell hardness number (Bhn) calculated according to a predetermined formula.