How to correctly distinguish magnetic materials

Magnetic materials are substances that attract metals such as iron, nickel, and cobalt. Common magnetic materials include alloys such as steel, ferrite, and aluminum nickel cobalt. In our daily lives, magnetic materials are widely used in the manufacturing of household appliances, toys, electric tools, electronic products, and other aspects.
However, when using magnetic materials, it is easy to encounter difficulties in distinguishing different magnetic materials. Here are a few simple methods to help you correctly distinguish magnetic materials.
Firstly, the material type can be preliminarily determined by observing the reflectivity of the material surface. Different magnetic materials have slight differences in reflectivity, for example, molybdenum steel has high reflectivity, which is commonly used in the manufacturing of high-end watches. On the other hand, the surface of ferrite exhibits low light levels, which are commonly used in applications such as manufacturing artificial satellites.
Secondly, it can be distinguished by comparing the adsorption force of magnetic materials. The adsorption capacity of different magnetic materials varies, for example, aluminum nickel cobalt alloy has much stronger adsorption capacity than other materials. By comparing the adsorption forces of different materials to determine the type of magnetic material, it can help us choose the appropriate material correctly.
Finally, magnetic materials can be directly used for force field testing. The force fields between magnetic materials have different force properties, and by observing the reaction after being subjected to force, different magnetic materials can be quickly distinguished.
In summary, in daily practical applications, it is crucial to correctly distinguish between different magnetic materials. We need to use scientific methods to determine the differences between different materials, in order to avoid selecting the wrong material.