Everyone should know that NdFeB (rare earth neodymium) magnets may be Degauss in a high temperature environment, but in a normal temperature environment, NdFeB magnets may also be degauss(demagnetized). What is the situation? Woolen cloth? Let me introduce you to me.
When the NdFeB magnetic material is severely impacted, it may be degauss. Why is this? Because the NdFeB magnet will be subjected to violent external force when it is hit, it may cause changes in its internal structure. Does not show magnetism to the outside

NdFeB magnetic material belongs to rare earth permanent magnet material, NdFeB material contains metal neodymium, and metal neodymium and iron are prone to oxidation and rust, so generally NdFeB requires surface electroplating treatment , If it is not plated well, plus the time of use and wear and tear, the electroplating layer on the surface will crack, and the NdFeB magnetic material will also be demagnetized due to oxidation.
The above is the reason why the NdFeB magnetic materials sorted out by Courage Magnet for you are demagnetized at room temperature, I hope to help you!
Content related magnet articles;
How fast do magnets lose magnetism at high temperatures?
Maximum working temperature and Curie temperature of neodymium magnet
This is a very small rectangular ferrite block magnet, measuring 2.45 mm in length and 1 mm in both width and height. It is magnetised along its length and is barely noticeable when held in the hand....
7.4x6x5mm Ferrite Small Block Magnet Introduction,Material: Hard Ferrite (Ceramic),Shape: Block / Rectangle / Bar,Coating: No Coating,Grade (Chinese Stardard): Y30,Operating temperature: -40°C to 250°C,Delivery time: 7-15 days,Magnetization direction: thickness....
U-shaped neodymium magnets are a type of high-performance permanent magnet material with a structure resembling the letter ‘U’. Manufactured from sintered neodymium-iron-boron, they are characterised by high magnetic energy product....
This is a radial 4-pole ring (Hollow cylinder) magnet, the material is bonded NdFeB, with high magnetic performance, the size is 16mm outer diameter, inner hole 5mm, height 20mm, surface gray epoxy treatment, suitable for water pump motor...
This product is a 4-pole ring magnet, injection-molded ferrite material, the sample size is 22mm outer diameter, 7mm inner diameter, 4mm thickness, 2 N poles and 2 S poles, mainly used for push rod motors, magnetic induction devices, encoders, etc.,...
This is a radial 2 pole circular magnet designed specifically for magnetic encoder chips. It is made of sintered neodymium-iron-boron with N35 grade performance and is suitable for standard environments....
This product is a multi pole magnetic ring with an inner diameter of 1.5mm. The material is injection molded ferrite. It adopts axial multi pole magnetization and is mainly used for DC motors. If you have a sample of similar injection molded magnetic products, please contact us for quotation....
This is a very small size rectangular block magnet with galvanized surface, 3mm length, 1.5mm width and height, with very fine tolerance, magnetized by lengthwise direction, mainly used in precision electronics, instrumentation, please contact us if you need to buy....