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特殊钢主要用于制造机械设备、运输工具、工模具及军用产品等方面.在发达的国家,特殊钢产量一般占钢产量的12%左右,其中瑞典最高为24%、西德18%、法国16%、日本14%、美国13.8%、英国10%.凡大于12%的,均是特殊钢出口国.随着新兴工业的发展,特别足宇航、海洋开发、能源开发及石油化工有机合成等工业的发展,对金属材料的品种需要量日益扩大,对材质要求也日益严格,更重要的是要求材料有充分的可靠性.从特殊钢使用的条件来看,集中表现在高速、高温、高压、超低温及苛刻的腐蚀环境等方面.例如,四十年来,各种机床的切削速度增长了4～6倍;
Special steel is mainly used in the manufacture of machinery and equipment, transportation tools, tooling and military products, etc. In developed countries, the output of special steel generally accounts for about 12% of the steel output, of which the highest is 24% in Sweden, 18% in West Germany, France 16%, Japan 14%, the United States 13.8%, the United Kingdom 10%. Where more than 12%, are special steel exporter. With the development of new industries, especially enough space, ocean development, energy development and petrochemical organic synthesis Industrial development, the growing demand for varieties of metal materials, the material requirements are increasingly stringent, more importantly, require material has sufficient reliability from the conditions of the use of special steel, concentrated in high-speed, high temperature, high pressure , Ultra-low temperature and harsh corrosive environment, etc. For example, the cutting speed of various machine tools has increased by 4 to 6 times over the past 40 years;