所谓状态指表明金属或合金经受各种方式的加工和热处理之后所具有的物理和力学性能的特征状况。铜及铜合金通过不同的生产工艺和热处理制度可获得不同的物理和力学性能,为表示这些特性,世界上大多数国家(如美国、德国、英国、法国、ISO等)均制定了一套状态的分类及其代号体系。 The so-called state refers to the metal or alloy to withstand various forms of processing and heat treatment after the physical and mechanical properties of the characteristic conditions. Copper and copper alloys have different physical and mechanical properties through different production processes and heat treatment systems. To show these characteristics, most countries in the world (such as the United States, Germany, Britain, France, ISO, etc.) have developed a set of states Classification and its code system.