TMC Magnetics, Inc.

TMC Magnetics, Inc. offers various magnetic materials for fabrication and distribution. We only work with the world's leading magnet suppliers to insure quality and reliability. Many standard parts are available in stock for immediate release, so please contact us on availability.

Due to the diversity between the different permanent magnetic materials, each offer unique advantages and disadvantages that will fit into your application. We can offer recommendations for your particular application based on our years of experience, and select the appropriate magnetic material for you.

Standard Rating Characteristics of Representative Magnets

Type of magnets		Rare Earth		Ferrite			Alnico Magnet
Item	Unit	Nd-Fe-b	Sm-Co	Isotropic Ba-Ferrite	Aniso- tropic Sr-Ferrite by Dry	Aniso- tropic sr-Ferrite by wet	Alnico-5	Alnico-8	Haimag Alnico-5 col
Brr	[ kG ]	12.4	10.5	2.2	3.6	4	12.7	8.8	13.5
Brr	( mT )	1,240	1,050	220	360	400	1,270	880	1,350
bHc	[ kOe ]	11.6	8	1.9	3	3.3	0.65	1.47	0.75
bHc	( kA/m )	923	636	151	238	262	51	117	59
Bhmax	[ MGOe ]	37	24	1	3	3.8	5.3	5.2	7.3
Bhmax	( kJ/^ÜG)	294.5	191	8	23.9	30.2	42.2	41.4	58.1
Tempe- rature charact- eristic of Br	%/Åé	-0.12	-0.04	-0.18	-0.18	-0.18	-0.02	-0.01	-0.02
Curie point	°C	320	750	460	460	460	850	850	850
Density	g/cÜG	7.4	8.3	4.8	4.8	4.9	7.3	7.3	7.3

( ) indicates SI unit system and [ ] indicates CGS unit system