工业纯铁广泛用于制造电器、通讯器材、仪表、电磁元件、电子零件及飞机、字航飞行器电机壳体等,是国防和尖端工业部门的重要软磁材料。它要求低的矫顽力和高的导磁率及磁感应值。因此,对化学成份的控制和金属纯度的要求都比较严格。工业纯铁的代号“DT”,其检验标准是YB200—75。在此标准中牌号很多,如DT_1、DT_2、DT_3、DT_4等。这些牌号 Industrial pure iron is widely used in the manufacture of electrical appliances, communications equipment, instruments, electromagnetic components, electronic components and aircraft, word aircraft aircraft motor housing, is the defense and cutting-edge industrial sector, an important soft magnetic material. It requires low coercivity and high permeability and magnetic induction. Therefore, the control of chemical composition and metal purity requirements are more stringent. Industrial pure iron code-named “DT”, the test standard is YB200-75. In this standard many brands, such as DT_1, DT_2, DT_3, DT_4 and so on. These grades