Demagnetization curve is a very important indicator of magnetic characteristic.

And it is more completely and precisely than a single number like pull force or surface field. It provides information about the magnetic field strength. Meanwhile it shows how resistant it is to demagnetize, how a magnet’s shape affects matters, and how it is used in a magnetic circuit will affect its performance.

The magnetic domains in a fully magnetized magnet are aligned. So certain conditions such as reverse magnetic fields and temperature can cause some of the domains to lose this alignment and reverse, triggering the permanent magnet to lose some or all of its magnetic field.

Below are our typical examples of demagnetization curve. If you can’t find what you want, contact us by email for more information.