grades of neodymium

Do you need a magnet but don't know which strength to choose? This guide will help you make an informed decision. There are different strengths of magnets, each with its own uses, from weak refrigerator magnets to powerful neodymium magnets. Whether you're a DIY enthusiast, a science buff, or just need a magnet for everyday use, understanding the magnet strength chart is important. Neodymium grades typically range from N33 to N55 (MGOe 33 – MGOe 55). These are the most sought after magnets due to their ability to produce very powerful magnetic fields, even from a very small surface area.The larger the number next to the letter N, the stronger the magnetic field. Higher grades generally cost slightly more than lower grades of neodymium.     Technical Definitions Remanence (Br) – This is the measurement for the material’s ability to retain magnetism after being exposed to a powerful magnetic pulse. The higher this unit, the more magnetism the material can retain and consequently, the stronger the magnet. Coercive Force (Hc)  The measurement to eliminate the magnetic field when exposed to an opposing magnetic field. The higher this unit, the more resistance a magnet has to demagnetisation. Intrinsic Coercive Force (Hci)  The required strength of the opposing magnetic field to completely demagnetise a magnet to the value of 0. Maximum Energy Product (BH)max – This measurement shows the magnetic density of a material that produces a magnetic field. This measurement establishes how powerful a magnetic field is and it’s often abbreviated as MGOe. kG (KiloGauss) – 1 Kilogauss = 1000 Gauss. Gauss is the unit of measurement that measures magnetic induction.  T (Tesla) – 1 Tesla = 10,000 Gauss. Tesla is the unit of measurement that measures magnetic induction. Oe – Oersted –  A measurement of magnetic field strength. kA/m (kiloampere) – 1 kiloampere = 12.56 oersted – A measurement of magnetic field strength MGOe (Maximum Energy Product) – The unit of measurement that refers to the strength, power or magnetic density of a magnetic field. kJ/m³ (Kilojoule per Cubic Meter) – 1 Kilojoules = 1,000 Joules – The unit of measurement for energy.