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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 Magnet Bars - The High-Strength Solution for Industrial Applications When it comes to powerful and durable magnets for industrial settings, Alnico Magnet Bars are a top choice. Made of a special alloy of aluminum, nickel, and cobalt, these magnets offer exceptional magnetic strength and temperature stability, making them ideal for a wide range of applications. At their core, Alnico Magnet Bars consist of aligned magnetic domains that create a strong and consistent magnetic field. This allows them to attract and hold metal objects with ease, even in challenging environments. From sorting and separating metals to clamping and holding machinery parts, Alnico Magnet Bars are a versatile and reliable tool for any industrial process. What sets Alnico Magnet Bars apart from other magnet types is their excellent temperature stability. Unlike some magnets that can lose their magnetic strength or even become demagnetized when exposed to high temperatures, Alnico Magnet Bars can maintain their magnetic properties up to 800°F (425°C), making them ideal for use in high-heat environments such as foundries, steel mills, and aerospace facilities. Moreover, Alnico Magnet Bars are highly resistant to corrosion and wear, which is crucial in harsh industrial conditions. With proper care and maintenance, these magnets can last for years without losing their magnetic strength or shape. At Honsong Magnetics, we offer a range of Alnico Magnet Bars in various sizes and shapes to fit your specific industrial needs. Whether you need a custom design or a standard size, our team of experts can help you find the right Alnico Magnet Bars for your application. Contact us today to learn more about Alnico Magnet Bars and how they can enhance your industrial processes with their high-strength, temperature stability, and corrosion resistance.