There are a number of major families of permanent magnets available. They range from ferrite, which is low cost and low energy, to rare earth materials, which are more expensive and offer higher performance. Many factors affect the choice of magnetic material, such as operating temperature, size, weight constraints, environmental concerns and required magnetic energy. More information on our specific magnet materials is available through the links below.

	Material	Max Operating Temperature	Max Magnetic Energy Product	Resistance to Demagnetization
	Neodymium Iron Boron (Nd-Fe-B)	200°C	52 MGOe	Very High
	Samarium Cobalt (Sm-Co)	300°C - 350°C *	32 MGOe	Very High
	Alnico	550°C	10 MGOe	Low
	Bonded Nd-Fe-B	150°C	10 MGOe	High
	Ceramic (Hard Ferrite)	300°C	4 MGOe	Moderate

*view grades for grade-specific information