Soft magnetic materials refer to ferromagnetic materials with small residual magnetization and coercive force, such as silicon steel sheets and pure iron. It is characterized by easy magnetization, easy demagnetization and narrow hysteresis loop. Soft magnetic materials are commonly used to make iron cores for electric motors, transformers, electromagnets and the like.
The characteristic is that it is not easy to magnetize, and it is not easy to lose magnetism, and the hysteresis loop is wider.
Hard magnetic materials are commonly used to make various permanent magnets, magnets for speakers, and memory components in electronic circuits.