一、铬是重要的战略金属,三十年来需求量迅速增长铬是一种重要的战略金属,它具有高熔点,加入钢中具有高强度、抗腐蚀、防氧化等优良性能,因此在现代各工业技术部门,得到了较为广泛的应用.特别在冶金工业中,铬是冶炼铬铁合金、铬钢、不锈钢及特殊贵重合金的重要原料,其中不锈钢的用铬量约占冶金工业中总用铬量的65％,合金钢用铬量约占25％. First, chromium is an important strategic metal, rapid growth in demand for three decades Chromium is an important strategic metal, it has a high melting point, adding steel with high strength, corrosion resistance, oxidation and other excellent performance, so in the modern Industrial technology sector, has been more widely used.Especially in the metallurgical industry, chromium is an important raw material smelting ferrochrome, chrome steel, stainless steel and special precious alloys, in which the amount of chromium used in stainless steel in the total amount of chromium in the metallurgical industry Of 65%, alloy steel with about 25% of chromium.