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Material Specifications

Typical Magnetic and Physical Specifications

Aussie magnets are built to our stringent specifications and are designed for high performance and long life. Here are all the juicy details:

  Ferrite
Anistropic		 Ferrite
Isotropic		 Neodymium
Rare Earth		 Samarium
Cobalt
Rare Earth		 Alnico Plastic
Sheeting
Construction Sintered Sintered Sintered Sintered Cast -
Remenance Gauss (Tesla) 3,700
(0.37)		 2,100
(0.21)		 10,800-12,200
(1.08-1.22)		 10,000
(1.0)		 7,700
(0.77)		 2,200
(0.22)
Max Energy m.g.oe.
BH Max (kJ/m3)		  3.3
(26)		 0.95
(7.2)		 28-33
(225-265)		 23.2
(185)		 1.7
(14) 		  1.13
(8.8)
Coercive Force (Oersted)
(kA/m)		 3,000
(239)		 1,630
(130) 		 9,800-11,000
(800-880)		 8,000
(650)		 560
(45)		 1,900
(151)
Max Operating Temp.
Curie Temp. (ºC)		 180
450		 180
450		 80/100
310		 350
850		 550
760		 75
-
Machinable* No No No No No Yes
Density (kg/cm3) 4.7 4.7 7.4 8.3 7.2 3.7

 

* Yes = score & snap. No = Can only be ground to size using special tools.

 

Key Terminology

Anistropic Magnet A magnet having preferred orientation so that the magnetic characteristics are better along one axis than along any other axis.
Isotropic Magnet A magnet having the same magnetic characteristics along any axis or direction.
Coercive Force The demagnetising force in oersteds corresponding to zero magnetic induction in a magnetic material after saturation.
Oersted The cgs unit of magnetising force.
Remanence The magnetic induction which remains in a magnetic circuit after the removal of an applied magnetomotive force. If there is an air gap in the magnetic circuit, the reminance will be less than the residual induction.
Gauss Unit of flux density.