Neodymium magnets, also known as rare-earth magnets, are incredibly powerful and can pose potential risks if not handled with care. Handle with Caution: Neodymium magnets have a strong magnetic field that can attract or repel objects over a distance.
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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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These thin rectangular neodymium magnets are axially magnetised between the two 20mm x 4mm rectangular faces and provide a maximum pull of 1.92kg. Every magnet is coated with three layers of nickel, copper and nickel to reduce corrosion and provide a smooth finish.
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Flat Bar Magnet for Whiteboard and Fridge, Perfect for DIY, Crafts, Kitchen, and Office. Super Powerful: The strongest magnet of its size, each piece holds over 8 lbs of weight, boasting an internal strength of 10,400 Gauss and surface strength of 4,000 Gauss.
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20x3 mm N52 Neodymium Disc Magnet. Neodymium is about as common as tin or lead. There are two types of “Rare Earth Magnets” SMCO (Samarium-Cobalt) and Neodymium. Neodymium are the magnetically stronger and cheaper of the two but are more susceptible to oxidation, this is why they are protected by Nickel plating.
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Samarium Cobalt. Grade: N35. Neodymium Blocks. Neodymium Disks / Rods. Neodymium Cubes. Neodymium Rings. Neodymium Spheres. Neodymium - Self Adhesive.
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They have a high magnetic field strength and have a high coercivity (which makes them magnetically stable). 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.
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