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Alnico magnets are renowned for their high remanence, low coercitivity, and temperature stability. The properties for each grade at room temperature are listed in Tables 1 and 2. Furthermore, additional information such as demagnetization curves for different temperatures is available for download in the datasheets. Table 3 outlines the general characteristics of Alnico magnets. Figure 2 illustrates the temperature stability, depicting the demagnetization curves of Alnico 5 grade from -180 C to +300 C. This figure demonstrates how the output of the magnet remains constant when the working point is near BHmax over a large temperature range.Table 1: Typical magnetic properties of cast Alnico magnet
Table 2: Typical magnetic properties of sintered Alnico magnet
The physical properties of Alnico magnets are presented in Table 3. It should be noted that these values should not be considered as guaranteed, as they are not monitored during the manufacturing process.Table 3:Physical Properties of Alnico magnets
Surface Treatment: Alnico magnets typically do not need any protection from corrosion and can be used without a coating. However, some applications may require a smooth surface, and in these cases, a protective coating can be applied. 
Notes:
The corrosion resistance of these coverings fluctuates depending on the form of magnets, such as chamfers and inner rings, in diverse surroundings.
Alnico Horseshoe power magnet deliver exceptional pulling power.Industrial grade Alnico (Aluminum/Nicke/Cobalt) Magnets are built for heavy duty use and will not naturally demagnetize over time like other magnets. They are handy in a plethora ofapplications and work settings. Useful in a number of lifting, holding, sorting clamping and retrieving applications. Industrial grade Alnico magnets will not demagnetize and are not susceptible to heat. Magnet includes a keeper to help retain magnetic power. The horseshoe-shaped Power Alnico Magnet has extraordinarilystrong pull capacity of(24 oz. - 70 lbs. Capacity).Educational magnets are widely used in teaching and playing for children Features: 1) Widely used in teaching and playing for children 2) Material: hard ferrite or cast alnico 3) Many shapes, sizes and colors are available 4)We obey international safe standards and it has no bad influence on children's health Applications: Educations, they can help teachers, parents and students to explore mysterious forces of magnetism U shaped magnet/horseshoe alnico magnet/teaching magnet/educational magnets/alnico magnet are widely used in teaching and playing by children. Generally,Horseshoe Alnico Magnets /Red and Green Paint Hard Ferrite or Cast AlNiCo will be used in the Educational magnets, due to lower cost and good property. Many shapes, sizes and colors are available for clients choice. We usually paint them in red or green, or we combine them with other material such as metal, plastic.