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一、概述目前,各国的变形铝合金牌号大体上分为三大类。一类是采用四位数字牌号,美国、日本、澳大利亚等国使用这种牌号;一类是用合金元素符号和数字(表示含量)混合的牌号,如国际标准化组织、法国、德国、意大利、瑞士等;再一类就是用字母加数字表示合金牌号,如英国、苏联、中国、加拿大等。
First, an overview At present, the deformation of aluminum alloy grades are generally divided into three categories. One is the use of four-digit grades, the United States, Japan, Australia and other countries use this grade; one is the use of alloy elements symbols and figures (said content) mixed grades, such as the International Organization for Standardization, France, Germany, Italy, Switzerland Etc .; Another category is the use of letters and numbers that alloy grades, such as the United Kingdom, the Soviet Union, China, Canada and so on.