Tolerances on Magnetic Properties of Rare Earth Magnets 2

[Brad1979]

Is there any industry standard on the tolerance of magnetic properties for rare earth magnets? Looking in the MMPA 0100-00 standard, I didn't see any mention of it. Generally, energy product is given as a maximum but are Br, Hc, and Hci given as nominal values?

 

[MagBen]

Normally, Hc, Br, +/- 5%, (BH)max +/-10%

 

[MagMike]

In addition to MagBen's comments, I just wanted to add that Hci is normally specified at a minimum value. Hope this helps.

 

[Brad1979]

Thank you both for your help.