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Brinell hardness number
Brinell hardness numbern. Abbr. Bhn or HB The numerical value assigned to the Brinell hardness of metals and alloys. Also called Brinell number.Brinell hardness number (brɪˈnɛl) n (General Engineering) a measure of the hardness of a material obtained by pressing a hard steel ball into its surface; it is expressed as the ratio of the load on the ball in kilograms to the area of the depression made by the ball in square millimetres[C19: named after Johann A. Brinell (1849–1925), Swedish engineer]Bri•nell′ hard′ness num`ber (brɪˈnɛl)
n. a rating obtained from a test (Brinell′ test`) to determine the hardness of a metal by pressing a steel ball of a standard size into the metal using a standard force. Abbr.: Bhn [after J.A. Brinell (1849–1925), Swedish engineer] Brinell hardness number
Brinell hardness numberA measure of Brinell hardness; obtained by dividing the load expressed in kilograms (applied to a ball, usually 10 mm in diameter), by the area of indentation, expressed in square millimeters.Brinell 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.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 scaleBri·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. AcronymsSeeBHNThesaurusSeeHb |