Brinell hardness number

noun Metallurgy.
  1. 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. Abbreviation: Bhn

Origin of Brinell hardness number

named after J.A. Brinell (1849–1925), Swedish engineer
Also called Brinell number.
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British Dictionary definitions for brinell hardness number

Brinell hardness number

noun
  1. 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

Word Origin for Brinell hardness number

C19: named after Johann A. Brinell (1849–1925), Swedish engineer
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