论文部分内容阅读
GB/T13304—91《钢分类》国家标准,已于1992年10月1日开始执行。这是一个钢铁产品的基础标准,它关系到钢产品的分类、统计、定价等技术、经济工作。对从事与钢铁有关的生产、科研、教学、贸易等的人员都要正确理解和使用钢分类的基本规定。《钢分类》标准,一是按钢中化学成分分类,参照国际ISO4948/1标准,分为非合金钢、低合金钢、合金钢三类。二是按钢主要质量等级和主要性能及使用特性分类,参照
GB / T13304-91 “Steel Classification” national standards, has been in October 1, 1992 implementation. This is a basic standard of steel products, it relates to the classification of steel products, statistics, pricing and other technical and economic work. The basic regulations for the classification of steel should be correctly understood and used by those engaged in steel-related production, research, teaching and trade. “Steel classification” standard, one is classified according to the chemical composition of steel, with reference to international ISO4948 / 1 standard, divided into non-alloy steel, low alloy steel, alloy steel three categories. Second, according to the main quality grade steel and the main performance characteristics and the use of classification, reference