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多年来,人们一直在扩展工具钢的用途以适应不同场合的需要。1955华美国钢铁研究所根据工具钢的一般物理性质、用途及热处理方法,把比较常用的工具钢分成6个主要类别。这个曾作为英国标准4659基础的著名分类,在附表中列出。时至今日,在初步选择一种或一组工具钢时,它仍是最实用的方法。至于失去作用的BS224:1938模具钢,没有包括在美国钢铁协会的分类中及英国标准4659中。但对于热加工模具,它们仍受到欢迎。因为它们与
Over the years, people have been expanding the use of tool steel to meet the needs of different occasions. 1955 China and the United States Institute of Steel According to the general physical properties of tool steel, use and heat treatment methods, the more commonly used tool steel is divided into 6 major categories. This famous classification, which was the basis of the British Standard 4659, is listed in the attached table. Today, it is still the most practical way to initially choose a tool or set of tool steels. BS224: 1938 tool steel, which is deactivated, is not included in the classification of the American Iron and Steel Institute and in British Standard 4659. But for hot-working tools, they are still welcome. Because of them and