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Magnetic Material Classification
Gauss Industrial Co.,Ltd | Updated: Mar 21, 2018

Metal magnetic materials are divided into permanent magnet materials and soft magnetic materials.

The material with a coercivity greater than 0.8 kA/m is generally referred to as a permanent magnetic material, and the material with a coercivity less than 0.8 kA/m is referred to as a soft magnetic material.

The so-called magnetic material is a ferromagnetic material, and it is an ancient and widely used functional material. The magnetic material was divided into ferrite, neodymium-iron-boron, samarium-cobalt magnets, and aluminum-nickel-cobalt magnets. , iron-chromium-cobalt magnets and other five categories. The magnetic properties of materials have been recognized and applied by people as early as 3,000 years ago. For example, in ancient China, natural magnets were used as compasses. Modern magnetic materials have been widely used in our lives, such as using permanent magnetic materials as motors, core materials used in transformers, magneto-optical disks used as memories, magnetic recording disks for computers and the like. Big Bit Information, said magnetic materials and information technology, automation, mechanical and electrical integration, defense, national economy are closely related to all aspects. It is generally considered that a magnetic material is a material that can directly or indirectly generate magnetic properties by transition elements such as iron, cobalt, nickel, and alloys thereof. The difficulty of magnetic material demagnetization after magnetization can be divided into soft magnetic material and hard magnetic material. Magnetic materials that are easy to remove after magnetization are called soft magnetic materials. Materials that are not easily demagnetized are called hard magnetic materials. In general, the remanence of a soft magnetic material is small, and the remanence of a hard magnetic material is large.

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