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Brinell hardness number |
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Brinell hardness number, Brindell (hardness) number [brɪˈnɛl] n (Engineering / 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 [named after Johann A. Brinell (1849-1925), Swedish engineer] How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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The first ladle, poured immediately at 2750F showed primarily size 4-5 Type A graphite in a medium spaced pearlitic matrix having an average tensile strength of 34,000 psi and an average Brinell hardness number of 190. Most familiar to cast iron producers and users is the Brinell hardness number (HB), followed closely by the Rock-well [(R. The diameter of the resultant impression is then measured with a microscope and a Brinell hardness number (Bhn) calculated according to a predetermined formula. |
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