Engineering (คำศัพท์วิศวกรรม) : ความหมายของคำว่า Brinell Hardness Number คือ ...
Brinell Hardness Number ความหมาย คือ (english) The value of hardness of a metal on an arbitrary scale representing kg/mm2, determined by measuring the diameter of the impression made by a ball of given diameter applied under a known load. Values are expressed in Brinell Hardness Numbers, BHN