随着我国经济发展和国际交流的增多,近些年来不少国家标准以等效、等同或参照等方式采用了国际标准。但目前相当多的技术资料及教科书,仍在沿用原标准。因此,一些技术人员缺乏对新标准的了解,给工作带来不便。本文就新国标中各种金属硬度的表示方法作一简单介绍。 With the economic development in our country and the increase in international exchanges, many national standards have adopted international standards in the form of equivalence, equivalence or reference in recent years. However, a considerable amount of technical information and textbooks are still using the original standard. Therefore, some technicians lack the understanding of new standards and bring inconvenience to work. This article on the new national standard in a variety of metal hardness for a brief introduction.