Bob Johnson Associates - Samarium Cobalt Magnets

Injection Molded Samarium Cobalt Magnets

Injection molded SmCo magnetic properties are different than for compression bonded SmCo with a lower Br [2.5 – 8.0 MGOe], but superior Hci [9,000 – 14,900 Oe]. They feature high size precision, and exhibit exceptional shock resistance. Injection Molded SmCo magnets can be processed into various components with complicated shapes lending themselves for use in micro-motors or other specialty motors, office equipment, instruments, and meters to name a few. Custom designs available.

Injection Molded Samarium Cobalt Grades
Grade	Br		HcB		HcJ		(BH)max		D	Material Type	% Change Per C		Tc	T_op*
	mT	Gs	KA/m	Oe	KA/m	Oe	KJ/m3	MGOe	g/cm3		Near Br	Near HcJ	℃	℃
SCI-3	300-400	3000-4000	199-279	2500-3500	716-1194	9000-15000	20-28	2.5-3.5			-0.04			100
SCI-8	550-680	5500-6800	334-462	4200-5800	716-1194	9000-15000	48-64	6.0-8.0						100
* T_op is the maximum operating temperature, which is dependent upon permeance, coefficient, and environment.