5pcs Very Strong Neodymium Disc Magnets 10x2 mm N52 Grade

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    5pcs Very Strong Neodymium Disc Magnets 10x2 mm N52 Grade


    5pcs Very Strong Neodymium Disc Magnets 10x2 mm N52 Grade



    Description of 5 Flat Surface 10x2mm Neodymium Mangets by NeoMag –  N52 Super Strong Rare Earth Minerals  – Perfect for Science Experiments – Lifetime Guarantee


    Neodymium Disc Magnets. Strong for their size.

    Neodymium magnets (NdFeB or Neo) consist of a sintered alloy of the rare-earth element neodymium with iron and boron. The alloy has very high coercivity, magnetic remanence and energy and is stronger than any other permanent magnet material.

    Neodymium magnets are manufactured in a large number of grades. The material grade determines the energy and thermal characteristics of the magnet. The value in the grade code (i.e. 52) represents the energy of the material and any following letters (if present) represent the thermal characteristics.

    Neodymium magnets have a huge number of uses in industry, medicine and household products.


    N52 Remenance[Br]
    Gauss (mT)
    N50 Coercivity[bHc] 
    Oersted (kA/m)
    N48 Energy Product[BHmax] 
    MGOe (kJ/m3)
    N45 Intrinsic Coercivity[jHc] 
    Oersted (kA/m)
    N42 Max Operating Temp
    0C (0F)
    N40 Surface Flux Density
    Gauss (mT)
    N38 Calculated Pull*

    *This value has been calculated for this size and shape of magnet. It represents a maximum value for comparative purposes. There are many factors that will influence real world results so please contact us for advice.






    Item Description
    Material NdFeB N52
    Shape Disc
    Size 10.0Dia x 2.0 (A) +/- 0.1mm
    Finish Triple plated nickel-copper-nickel
    Quantity 5 off
    Description Nickel plated magnets in the strongest N52 grade




    NEODYMIUM magnets: Tips for safe handling


    Children could swallow small magnets.
    If several magnets are swallowed, they could get stuck in the intestine and cause perilous complications.
    Magnets are not toys! Make sure that children don't play with magnets.

    Electrical conductivity
    Electrical conductivity
    Magnets are made of metal and conduct electricity.
    Children might try to put magnets into a power outlet and thereby suffer from an electric shock.
    Magnets are not toys! Make sure that children don't play with magnets.

    Big magnets have a very strong attractive force.
    • Unsafe handling could cause jamming of fingers or skin in between magnets. This may lead to contusions and bruises.
    • Powerful, very large magnets could cause bone fractures.
    Wear heavy protective gloves when handling larger magnets.

    Magnets could affect the functioning of pacemakers and implanted heart defibrillators.
    • A pacemaker could switch into test mode and cause illness.
    • A heart defibrillator may stop working.
    • If you wear these devices keep sufficient distance to magnets.
    • Warn others who wear these devices from getting too close to magnets.

    Heavy objects
    Heavy objects
    Too heavy loads, symptoms of fatigue as well as material defect could cause a magnet or magnetic hook to loosen from the surface that is was attached to.
    Falling objects could lead to serious injuries.
    • The indicated adhesive force applies only to ideal conditions. Allow for a high safety cushion.
    • Don't use magnets in places where people could sustain injuries in case of material failure.

    Metal splinters
    Metal splinters
    Neodymium magnets are brittle. Colliding magnets could crack.
    Sharp splinters could be catapulted away for several meters and injure your eyes.
    • Avoid the collision of magnets.
    • Wear safety glasses when handling larger magnets.
    • Make sure that nearby people are also protected or keep their distance.

    Magnetic field
    Magnetic field
    Magnets produce a far-reaching, strong magnetic field. They could damage TVs and laptops, computer hard drives, credit and ATM cards, data storage media, mechanical watches, hearing aids and speakers.

    When machining magnets, the drilling dust could easily ignite.
    Stay away from machining magnets or use appropriate tools and sufficient cooling water.

    Nickel allergy
    Nickel allergy
    Many of our magnets have coatings that contain nickel.
    • Some people have an allergic reaction when they come into contact with nickel.
    • Nickel allergies could develop from constant contact with nickel-plated objects.
    • Avoid constant skin contact with nickel-plated magnets.
    • Avoid contact with magnets if you already have a nickel allergy.

    Magnetic fields of improperly packaged magnets could influence airplane navigation devices.
    In the worst case it could lead to an accident.
    • Airfreight magnets only in packaging with sufficient magnetic shielding.
    • Please refer to the respective regulations.

    Magnetic fields of improperly packaged magnets could cause disturbances in sorting machines and damage fragile goods in other packages.
    • Please refer to our shipping tips.
    • Use a large box and place the magnet in the middle surrounded by lots of padding material.
    • Arrange magnets in a package in a way that the magnetic fields neutralise each other.
    • If necessary, use sheet iron to shield the magnetic field.
    • There are stricter rules for airfreight: Refer to the warning notice "Airfreight".

    Influence on people
    Influence on people
    According to the current level of knowledge, magnetic fields of permanent magnets do not have a measurable positive or negative influence on people. It is unlikely that permanent magnets constitute a health risk, but it cannot be ruled out entirely.
    • For your own safety, avoid constant contact with magnets.
    • Store large magnets at least one metre away from your body.

    Splintering of coating
    Splintering of coating
    Most of our neodymium magnets have a thin nickel-copper-nickel coating to protect them from erosion. This coating could splinter or crack due to collision or large pressure. This makes them vulnerable to environmental influences like moisture and they could oxidise.
    • Separate big magnets, especially spheres, with a piece of cardboard.
    • Avoid collisions of magnets as well as repeated mechanical exposure (e.g. blows, bashes).

    Oxidation, corrosion, rust
    Oxidation, corrosion, rust
    Untreated neodymium magnets oxidise quickly and disintegrate.
    Most of our magnets have a nickel-copper-nickel coating to protect them from corrosion. This coating provides some protection against corrosion, but it is not robust enough for continuous outdoor use.
    • Use magnets only in the dry indoors or protect them against environmental influences.
    • Avoid damages to the coating.

    Temperature resistance
    Temperature resistance
    Neodymium magnets have a maximum working temperature of 80 to 200 °C.
    Most neodymium magnets lose part of their adhesive force permanently at a temperature of 80 °C.
    • Don't use magnets in places where they are exposed to extreme heat.
    • If you use an adhesive, don't harden it with hot air.

    Mechanical treatment
    Mechanical treatment
    Neodymium magnets are brittle, heat-sensitive and oxidise easily.
    • When drilling or sawing a magnet with improper tools, the magnet may break.
    • The emerging heat may demagnetise the magnet.
    • The magnet will oxidise and disintegrate due to the damaged coating.
    Stay away from mechanical treatment of magnets if you do not possess the necessary equipment and experie

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