NdfeB magnet is no doubt the strongest and the most popular rare earth magnets. It comprises of Iron (Fe), Neodymium (Nd), and boron (B) to structure the Nd2Fe14B tetragonal crystalline composition. It is also called NIB, NdFeB, or Neo magnet. It is a permanent as well as a highly durable metal. These metals were invented in the year 1980. Today, they are the strongest and most affordable type of rare-earth magnet. In this article I would basically like to stress up on some of the key properties of Neodymium Ring Magnets. Let us start with the first one. 1. Coercivity The high uniaxial magnetocrystalline anisotropy of this metal gives it the power to have high coercivity. They have a very high resistance to demagnetization due to their tetragonal Nd2Fe14B crystal structure. Due to this feature this metal is highly used in many different kinds of industrial applications. 2. Remanence This metal has excellent magnetic field strength. One problem with this magnet is that it may even break off and split if it is allowed to snap together. 3. Curie temperature It is the maximum temperature at which this metal loses its magnetism. These metals usually have a low working temperature for heat applications and can catch fire at high temperatures. 4. Strength These items are much more powerful then any other horseshoe magnet that are available in the market. They have highest magnetic strength. http://www.neodymiummagnetswholesale.com/neodymium_ring_magnet.html