Bob Johnson Associates - Alnico Magnets

Sintered Alnico magnets are mechanically the strongest of the Alnico series, and with the benefit of close tolerance pressing they are ideally suited for small complex shapes, typically with minimal finish grinding.

Sinterd Alnico Grades
Grade	Br		HcB		(BH)max		D	Equivalent MMPA Class	% change/ ℃	Tc	Tw
	mT	Gs	KA/m	Oe	KJ/m³	MGOe	g/cm³		Near Br	℃	℃
*FLN8	520	5200	43	540	8-10	1.0-1.25	6.8	[S.Alnico 3]	-0.22	760	450
*FLNG12	700	7000	43	540	12-14	1.5-1.75	7	[S.Alnico 2]	-0.14	810	450
*FLNGT14	570	5700	78	980	14-16	1.75-2.0	7.1		-0.02	850	450
*FLNGT18	560	5600	90	1130	18-22	2.25-2.75	7.2	[S.I.Alnico 8]	-0.02	850	450
FLNG28	1050	10500	47	590	28-33	3.5-4.15	7.2	S.Alnico 6	-0.016	850	450
FLNG34	1100	11000	51	640	34-38	4.3-4.8	7.2		-0.016	890	450
FLNGT28	1000	10000	57	710	28-30	3.5-3.8	7.2		-0.02	850	450
FLNGT31	780	7800	106	1130	33-36	3.9-4.5	7.2		-0.02	850	450
FLNG33J	650	6500	150	1880	31-36	4.15-4.5	7.2	S.Alnico 8HC	-0.02	850	450
FLNGT38	800	8000	126	1580	38-42	4.75-5.3	7.2	S.Alnico 8	-0.02	850	450
FLNGT42	880	8800	122	1530	42-48	5.3-6.0	7.25		-0.02	850	450
Customized Properties Can Be Achieved by using Special Processing Methods *=Isotropic Other=Anisotropic