Brinell ball test

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• Brinell hardness test — a test made to determine hardness on relatively thick sections of metal by pressing a steel ball of specified diameter into a test specimen under a specified load. This test is seldom used on copper and copper base alloys …   Mechanics glossary

• Brinell scale — The Brinell scale characterizes the indentation hardness of materials through the scale of penetration of an indenter, loaded on a material test piece. It is one of several definitions of hardness in materials science.Proposed by Swedish engineer …   Wikipedia

• Brinell, Johan August — ▪ Swedish engineer born Nov. 21, 1849, Bringetofta, Swed. died Nov. 17, 1925, Stockholm       Swedish metallurgist who devised the Brinell hardness test, a rapid, nondestructive means of determining the hardness of metals.       In 1875 Brinell… …   Universalium

• Brinell test — [bri nel′] n. 〚after J. A. Brinell (1849 1925), Swed engineer〛 a test for determining the relative hardness (Brinell hardness) of a metal by measuring the diameter of the indentation made when a hardened steel ball is forced into the metal under… …   Universalium

• Brinell test — [bri nel′] n. [after J. A. Brinell (1849 1925), Swed engineer] a test for determining the relative hardness (Brinell hardness) of a metal by measuring the diameter of the indentation made when a hardened steel ball is forced into the metal under… …   English World dictionary

• Brinell hardness — (HB or BHN)    a measure of the hardness of a metal introduced by J. A. Brinell in 1900.    In the Brinell test (generally used for metals of uniform hardness), a hard object such as a steel ball is pressed into the material being tested. The… …   Dictionary of units of measurement

• Brinell hardness number — Metall. 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. Also called Brinell number. Abbr.: Bhn [named after J.A. Brinell (1849… …   Universalium

• Brinell hardness number — Metall. 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. Also called Brinell number. Abbr.: Bhn [named after J.A. Brinell (1849… …   Useful english dictionary

• Brinell hardness number — Bri•nell′ hard′ness num ber [[t]brɪˈnɛl[/t]] n. mel 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 • Etymology: after …   From formal English to slang

• Brinell number — noun measure of the hardness of a material • Hypernyms: ↑unit of measurement, ↑unit * * * noun Usage: usually capitalized B Etymology: after J.A.Brinell : a number expressing Brinell hardness * * * Brinell number …   Useful english dictionary

• Brinell hardness — Bri·nell hardness brə .nel n the hardness of a metal or alloy measured by hydraulically pressing a hard ball under a standard load into the specimen Brinell Johan August (1849 1925) Swedish engineer. After studying the internal composition of… …   Medical dictionary