AlNiCo Magnets Materials

AlNiCo Magnets Material is comprised of aluminum, nickel, cobalt, and iron with varying additions of other elements. It possesses excellent temperature stability and high residual induction. AlNiCo magnets have a low Coercive Force that limits their applications in many cases. There are two different manufacturing processes for AlNiCo: Cast and Sintered. Cast AlNiCo Magnets can be made into many sizes and shapes, whereas Sintered AlNiCo Magnets are usually restricted to smaller sizes. However, both processes lead to complex geometries and configurations. Standard Sintered AlNiCo Magnets have tighter dimensional tolerances due to their processing. It also has slightly lower magnetic properties but better mechanical strength than Cast AlNiCo Magnets products.

Sizes of AlNiCo Magnets Materials

	Dimensions
	A (mm)	B(mm)	C(mm)
	23	4	6
	25	5	6
	23	3.5	6
	51	5	5
	218	10	146
	142	9	70
	101.6	40	76.2
	50.8	25.4	38.1
	101.6	38.1	76.2

	Dimensions		Applications
	A (mm)	B(mm)
	1.57	9.525	Micro-motors
	1.7	12	Micro-motors
	3.175	12.7	Micro-motors
	4	15	Sensors
	5	10/15/17/18/20/25/25.4	Sensors
	6	25/30/100	Sensors
	6.35	25.4/31.75	Sensors
	7	30	Sensors
	8	20/25/30/50/150	Sensors
	9	5	Meters
	9.525	25.4/38.1/63.5	Sensors
	10	10/12/15/30/140	Sensors
	10	28	Sensors
	10.4	8	Meters
	11	50	Sensors
	12	30/50	Sensors
	12.7	50.8/76.2	Cows
	13	10/12/15	Speaker
	25	20	Assembly
	38	16	Balances

	Dimensions				Applications
	A (mm)	B(mm)	C(mm)	D(mm)
	63.5	12.7	3.175		Musical instruments
	58	12.6	3		Musical instruments
	60	12.7	3		Musical instruments
	25.4	6.35	6.35		Sensors
	22.5	4.3	4.3		Sensors
	69	25	25	15	Magnetic chucks
	62	13	3		Musical instruments
	75	15	10		Education
	19	3.2	3.2		Sensors
	150	16	6		Education
	25	22.5	7		Meters
	25	22	7	R4	Meters
	42	42	20	6.5	Magnetic chucks
	45	20	15	7	Magnetic chucks
	50	20	20	7	Magnetic chucks
	50	50	40		Magnetic chucks
	45	24	15		Magnetic chucks
	45	22.5	15		Magnetic chucks
	59.5	59.5	25	11	Magnetic chucks
	45	18.5	30.5		Magnetic bases
	53	19.3	32		Magnetic bases

	Dimensions					Application
	A (mm)	B(mm)	C(mm)	D(mm)	E(mm)
	42	20	30	10		Blender
	55	11	13.4	16		Meters
	28.6	7.6	25.4	8		Education
	30	20	20	7.5	D5	Holding
	45	30	30	11	D5	Holding
	25.4	15.9		5.6	D4.8	Holding
	19.05	12.7		5.6	D4.8	Holding
	31.75	25.4		7.94	D7.1	Holding
	40	25	25	10		Holding
	39.6	25.4	25.4	10.3	D5.5	Holding
	63.5	47.6	46	14.3	D4.8	Holding
	69.8	57.1	41.3	14.3	2XD7.9	Holding
	64	12	26	14		Holding
	17	22	10	6.25		Meters
	62	26	61	13		Education
	21	13.1	16.2	6.2		Meters

Magnetic and Physical Properties of Sintered AlNiCo Magnet Materials

Remanence		Coercive Force		Coercive Force		Maxmun Energy Product		Density	Reversible Temp. Coefficient	Curie Temp.	Temp. Coefficient	Remark
Br		Hcb		Hcb		(BH)max		g/cm3	α(Br)	TC	TW
mT	Gs	KA/m	KOe	KA/m	Oe	KJ/m3	MGOe		%/℃	℃	℃
520	5200	43	540	40	500	8-10	1.0-1.25	6.8	-0.02	760	450	Isotropy
700	7000	43	540	40	500	12-14	1.5-1.75	7	-0.014	810	450
600	6000	107	1350	95	1200	18-22	2.25-2.75	7.2	-0.02	850	550
1000	10000	57	710	56	700	28-30	3.5-3.8	7.2	-0.02	850	550	Anisotropy
1100	11000	51	640	50	630	34-38	3.5-4.15	7.2	-0.016	850	550
780	7800	106	1130	104	1300	33-36	3.9-4.5	7.2	-0.02	850	550
800	8000	126	1580	123	1550	38-42	4.75-5.3	7.2	-0.02	850	550
880	8800	122	1530	120	1500	42-48	5.3-6.0	7.25	-0.02	850	550
730	7300	163	2050	151	1900	38-40	4.75-5.0	7.2	-0.02	850	550

Magnetic and Physical Properties of Cast AlNiCo Magnet Materials

Remanence		Coercive Force		Maxmun Energy Product		Density	Reversible Temp. Coefficient	Reversible Temp. Coefficient	Curie Temp.	Temp. Coefficient	Remark
Br		Hcb		(BH)max		g/cm3	α(Br)	α(Br)	TC	TW
mT	Gs	KA/m	KOe	KJ/m3	MGOe		%/℃	%/℃	℃	℃
600	6000	40	500	10	1.2	6.9	-0.03	-0.02	810	450	Isotropy
700	7000	48	600	12.8	1.6	7.2	-0.03	+0.02	810	450
580	5800	100	1250	18	2.2	7.3	-0.025	+0.02	860	550
1200	12000	48	600	37	4.65	7.3	-0.02	+0.02	850	525	Anisotropy
1250	12500	48	600	40	5	7.3
1250	12500	52	650	44	5.5	7.3
1300	13000	56	700	52	6.5	7.3
1350	13500	59	740	60	7.5	7.3
1000	10000	57.6	720	28	3.5	7.3	-0.02	+0.03	850	525
700	7000	140	1750	36	4.5	7.3	-0.025	+0.02	860	550
800	8000	110	1380	38	4.75	7.3	-0.025	+0.02	860	550
820	8200	110	1380	40	5	7.3	-0.025		860	550
950	9500	110	1380	60	7.5	7.3	-0.025	+0.02	860	550
1050	10500	112	1400	72	9	7.3	-0.025		860	550