They have a high magnetic field strength and have a high coercivity (which makes them magnetically stable). Although magnets can be wonderful toys and highly educational, these are 'adult' toys, andNOT for children.
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N numbers range from N27 - N52. Very Strong Mini 12mm x 2mm Disc N35 Neodymium Magnets. Neodymium is about as common as tin or lead. Neodymium Magnets. Never allow magnets to jump together or to jump to steel as they will likely shatter.
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Neodymium magnets are an alloy of neodymium iron and boron. They have very high energy and are more powerful for their size than any other magnet material. You will find them in many industrial and household products and are ideal for crafting.
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Samarium Cobalt. N52 is the highest grade which is currently widely and reliably available. Neodymium N52 - High Grade. Grade: N52. in NdFeB (Neodymium), SmCo (Samarium Cobalt), AlNiCo (Alcomax) and Ceramic.
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N52 Neodymium disc magnets. With a maximum energy product of 52 MGOe, these magnets provide the highest level of magnetism, making them ideal for various applications requiring intense magnetic force.
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These magnets are available in sizes 14mm x 3mm and 20mm x 3mm. See pictures for details.
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Usually surprise is an issue--they can jump out of your hands and snap together from a surprising distance before you realize what is happening. They are strong enough that they can fly into each other or to a piece of iron or steel with such velocity that they can break and send sharp 'shrapnel' flying about!
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Neodymium magnets are an alloy of neodymium iron and boron. They have very high energy and are more powerful for their size than any other magnet material. You will find them in many industrial and household products and are ideal for crafting.
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