Hard ferrite ceramic (Hard Ferrite) magnets were developed in the 1960s as a low-cost alternative to metallic magnets. They are one of the most widely used magnetic materials for sensors and are also a popular choice when considering magnet options for industrial use. Compared with other permanent magnet materials, they have low energy but are tough and affordable. These magnets are hard and brittle, but they are known for good resistance to demagnetization and excellent corrosion resistance. Their price per pound is low, making them a top pick in many industries. Ferrite magnets are used in various magnet options for industrial use, especially where cost and durability matter most. They are also preferred magnetic materials for sensors in electronic and automotive systems. In fact, by weight, ferrite makes up more than 75 percent of the world’s magnet use. It is often the first choice for many DC motors, magnetic separators, magnetic resonance imaging, and automotive sensors. Other magnetic materials include soft ferrites for inductors, which are useful in electronic circuits, and Sintered Samarium Cobalt Magnets, which offer high performance in tough environments. For applications needing higher strength, the flux density of Alnico magnets is another factor to consider..