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AlNiCo describes a family of material, which is derived from a common base composition comprising of aluminum, nickel, cobalt and iron with varying additions of other elements. By varying the composition it is possible to tailor the magnetic properties to meet the needs of a wide variety of end use applications. There are two different manufacturing processes for AlNiCo: Cast AlNiCo can be made into many size and shapes, whereas Sintered AlNiCo is usually restricted to smaller sizes. However, both processes lead themselves to complex geometries and configurations. Standard Sintered AlNiCo has tighter dimensional tolerances due to its processing. It also has slightly lower magnetic properties, but better mechanical strength than Cast AlNiCo products which possess the lowest reversible temperature coefficient magnetism in permanent magnet materials have excellent working temperature up to 600°C. AlNiCo products are widely used in all kinds of meters and other application.

Magnetic Properties of Cast Alnico

GRADE	Br		Hcj		(BH)max		Density	U.S. Standard	% Change Per C		Tc	Tw
GRADE	mT	Gs	KA/m	Oe	KJ/m3	MGOe	g/cm3	U.S. Standard	Near Br	Near Hcj	°C	°C
LN9	680	6800	30	380	9.0	1.13	6.9	AlNiCo 3	-0.03	-0.02	810	450
LN10	600	6000	40	500	10.0	1.2	6.9	AlNiCo 3	-0.03	-0.02	810	450
LN12	720	7200	45	500	12.4	1.55	7.0	AlNiCo 2	-0.03	-0.02	810	450
LN13	700	7000	48	600	12.8	1.60	7.0	AlNiCo 2	-0.03	-0.02	810	450
LN37	1200	12000	48	600	37.0	4.65	7.3	AlNiCo 5	-0.02	+0.02	860	525
LNG40	1250	12500	48	600	40.0	5.00	7.3		-0.02	+0.02	860	525
LNG44	1250	12500	52	650	44.0	5.50	7.3		-0.02	+0.02	860	525
LNG52	1300	13000	56	700	52.0	6.50	7.3	AlNiCo 5DG	-0.02	+0.02	86	525
LNG60	1350	13500	59	740	60.0	7.50	7.3	AlNiCo 5-7	-0.02	+0.02	860	525
LNGT28	1000	10000	58	720	28.0	3.50	7.3	AlNiCo 6	-0.025	+0.03	860	525
LNGT36J	700	7000	140	1750	36.0	4.50	7.3	AlNiCo 8HC	-0.025	+0.02	860	550
LNGT18	580	5800	100	1250	18.0	2.20	7.3	AlNiCo 8	-0.025	+0.02	86	550
LNGT32	800	8000	100	1250	32.0	4.00	7.3	AlNiCo 8	-0.025	+0.02	860	550
LNGT40	800	8000	110	1380	40.0	5.00	7.3	AlNiCo 8	-0.025	+0.02	860	550
LNG60	900	9000	110	1380	60.0	7.50	7.3	AlNiCo 9	-0.025	+0.02	860	550
LNGT72	1050	10500	112	1400	72.0	9.00	7.3	AlNiCo 9	-0.025	+0.02	860	550

Magnetic Properties of Sintered Alnico

GRADE	Br		Hcj		Hcb		(BH)max		Density	% Change Per C	Tc	REMARKS
GRADE	mT	Gs	KA/m	Oe	KA/m	Oe	KJ/m3	MGOe	g/cm3	%/K	°C	REMARKS
FLN8	520	5200	43	540	40	500	8-10	1.0-1.25	6.8	-0.022	760	ISOTROPIC
FLNG12	700	7000	43	540	40	500	12-14	1.5-1.75	7.0	-0.014	810
FLNGT14	570	5700	78	980	76	950	14-16	1.75-2.0	7.1	-0.020	850
FLNGT18	560	5600	90	1130	88	1100	18-22	2.25-2.75	7.2	-0.020	850
FLNG28	1050	10500	47	590	46	580	28-33	3.5-4.15	7.2	-0.016	850	ANISOTROPIC
FLNG34	1100	11000	51	640	50	630	34-38	4.3-4.8	7.2	-0.016	890
FLNGT28	1000	10000	57	710	56	700	28-30	3.5-3.8	7.2	-0.020	850
FLNGT31	780	7800	106	1130	104	1300	33-36	3.9-4.5	7.2	-0.020	850
FLNG33J	650	6500	150	1880	136	1700	31-36	4.15-4.5	7.2	-0.020	850
FLNGT38	800	8000	126	1580	123	1550	38-42	4.75-5.3	7.2	-0.020	850
FLNGT42	880	8800	122	1530	120	1500	42-48

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