Brinell hardness number


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Related to Brinell hardness number: Vickers Hardness Number

Brinell hardness number

n. 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]
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References in periodicals archive ?
The Brinell Hardness Number (BHN) is determined by dividing the kilogram load by the area (in square millimeters) of the circle created at the rim of the dimple or impression left in the workpiece surface.
That gives us the same approximate Brinell Hardness Number (BHN) as our castings when we check the end of the test bar.
Q Our customer requires a Brinell hardness number (BHN) of 85 on an A356-T6 sand casting, and our tests show measurements as low as 57 under the riser.