China Neodymium And Ferrite Magnets Manufacturer & Supplier 
N42 neodymium magnet is a kind of neodymium iron boron magnet, has a high magnetic energy product, is a lot of customers choose, editor for this purpose specially collated some N42 neodymium magnets common questions and answers, I hope to help you choose and use.
1, What is N42 magnets
N42 magnet is a kind of neodymium-iron-boron (NdFeB) magnet, its magnetic energy product (BH maximum) is 42 MGOe. N42 is a grade of neodymium-iron-boron magnets, where the number “42” indicates the maximum energy product of the magnet.
2, How strong are N42 magnets?
N42 is a medium strength NdFeB magnet, which is moderate among the common grades of NdFeB magnets, and is usually suitable for applications that require high strength but not the highest magnetic force.
3, What are the typical applications of N42 magnets?
N42 magnets are widely used in electric motors, speakers, sensors, hard disk drives, wind turbines, and other small devices that require strong magnetic force.
Picture shows neodymium cylindrical countersunk magnets.
4, What is the maximum working temperature of N42 magnet?
The maximum operating temperature of N42 magnets is 80°C, and they should not be used above this temperature.
5, Are N42 magnets easy to break?
Due to its hard and brittle nature, N42 magnets are prone to breakage or shattering due to impact or violent friction, so they need to be handled and stored carefully to avoid dropping or suffering from violent impacts.
6, What are the anti-corrosion treatments for N42 magnets?
As NdFeB magnets are easy to oxidize, common anti-corrosion treatments include nickel plating, zinc plating, titanium plating or spray epoxy resin, etc. These treatments can effectively extend the service life of the magnets.
7, What is the price of the N42 magnet? Is it expensive?
The price of N42 magnets varies depending on the manufacturing difficulty, size, surface finish, and quantity purchased. In general, N42 magnets are slightly more expensive than other grades of NdFeB magnets (e.g., N35, N38), but they are still a very cost-effective choice.
8, What are the advantages and disadvantages of N42 magnets compared to other grades?
N42 magnets offer a good balance between magnetic strength and price. It is slightly weaker than higher grade NdFeB (e.g. N52) for the same size, but is relatively inexpensive. Stronger than lower grade magnets (e.g. N35, N38).
9, What are the size and shape options for N42 magnets?
As long as it is not super difficult, it is usually no problem, the diameter is as small as 1mm, as large as 200mm, the thickness is as thin as 0.4mm, and as thick as tens of mm, it is no problem, can be customized, the
We hope these answers can help you understand N42 magnets better, if you have any other questions, please feel free to ask us!
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Price Difference Between N42sh and N42h