What does the N rating on neodymium magnets mean?
The magnet grade, or N rating refers, to the Maximum Energy Product of the material that the magnet is made from and it refers to the maximum strength that the material can be magnetized to permanently hold.
Generally speaking, neodymium magnets range from N35 to N55 in grade. The higher the grade number, the incrementally stronger the magnet will be.
The grades of neodymium magnets that we normally carry are N42, N48 and N52, a rating that is generally measured in Tesla metrics or units of Gauss Oersted (MGOe).
A magnet of grade N42 has a Maximum Energy Product of Gauss 42 MGOe, while an N52, at 52 MGOe, would be incrementally stronger.
It is important to note that the N rating is a measure of the maximum energy product of the magnet, and it does not necessarily reflect the actual strength of the magnet in a particular application. The strength of a magnet will depend on a number of factors, including the specific properties of the magnet and the configuration of the magnetic field.
Neodymium Magnet Grades →
Learn more about the different grades of neodymium available.
Customer Reviews
from 228 reviews
Fast, professional service
These magnets are so strong that it is difficult to separate them without using some kind of prying tool, my fingers alone are too weak to do it. They will do the job I purchased them for very well.
The magnets I received were shipped quickly and securely, and I had no issues with delivery. They were packed well and in good shape when I received them. I noticed no defect with the magnets and I I was able to use them exactly as I intended on back of a piece of jatoba for a magnetic knife strip. I routed a track to 1/8” and glued and epoxied the magnets in place. The magnets provide sufficient pull strength to hold knives without being too energetic about grabbing them from the hand. These met my need precisely and I would purchase again if I decide to make more of these magnetic knife holders.
I used the magnets on a wooden toy box for my grandson. Easy to install and the perfect strength. I will be buying different sizes for other projects.
Ordered these magnets for a project that I was working on. Received as stated & described, the magnets are what I was looking for. Will order from them again.
Used this for a hobby project I’m working on and the magnets held my project together very well. The finish on them were uniform and packaged them very well. They were shipped and received very timely and will be re-ordering more.
Good customer service, great price & quick to ship
I was hoping to find a strong, low profile magnet to use on my project - which is a restoration of a WWII Army Footlocker. I wanted to attach some old photos and postcards to the underside of the lid, but without using any permanent adhesives which may have affected my paint job. These worked perfectly!
Gifts
Just what I needed and at the right price.....
Nicely packaged.
Quick delivery.
Will purchase more when needed.
Have used before & reordered magnets for customized windows alarm contacts. Work fantastic & slim profile allowing no issues opening & closing windows.
Consistently great
me use these to stop 1/24 scale drag racing slot cars !!
1/2 x 1/8 Inch Strong Neodymium Rare Earth Disc Magnets N52 (24 Pack)