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Neodymium magnets are a composition of mostly Neodymium, Iron and Boron. If left exposed to the elements, the iron in the magnet will rust. To protect the magnet from corrosion and to strengthen the brittle magnet material, it is usually preferable for the magnet to be coated. There are a variety of options for coatings, but nickel is the most common and usually preferred. Our nickel plated magnets are actually triple plated with layers of nickel, copper, and nickel again. This triple coating makes our magnets much more durable than the more common single nickel plated magnets. Some other options for coating are zinc, tin, copper, epoxy, silver and gold. Our gold plated magnets are actually quadruple plated with nickel, copper, nickel and a top coating of gold. Neodymium magnets are a type of rare earth magnet. They are the strongest rare earth magnets and can be very dangerous if handled improperly. They are often referred to as rare earth magnets because they belong to the rare earth elements on the periodic table. But they are not the same as rare earth magnets. There are different types of rare earth magnets and Neodymium magnets are just one type. Neodymium magnets are the strongest permanent magnets available today.
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size - 50mm dia x 2mm
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hole - 4mm
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weight - N grams
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grade - N38
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NiCuNi
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max 80° C Neodymium magnets are very strong permanent magnets. In fact they are the strongest of all rare earth magnets and also the strongest permanent magnets that exist today. Neodymium magnets have a very high resistance to demagnetization. This makes them very useful in many different kinds of industrial applications. Even small sized Neodymium magnets have a very high energy. This makes them easily portable from one place to another. They are good in ambient temperature. Another major attribute of Neodymium magnets that has added to their popularity is the affordability factor. Neodymium magnets, unlike previous high strength magnets like tiny cobalt-samarium magnets, are priced very low and can be afforded by educators and experimenters on their limited budgets. Neodymium magnets are very corrosive and hence have to be handled carefully. It is best to coat them for long-term maximum energy output and usage. Neodymium magnets have a low working temperature for heat applications and can catch fire at high temperatures.
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