AlNiCo Magnet Grades

Alnico permanent magnets are made up of alloys whose significant constituents are iron, aluminum, nickel, and cobalt, though other elements (e.g., copper and titanium) may be included in minor amounts.

Grades of Alnico vary in cobalt content, which ranges from zero (Alnico 3) to 40% (Alnico 8). Lower grades (1, 2, 3, and 4) are unoriented, whose magnetic properties are isotropic and equal in all directions. Anisotropic grades (Alnico 5, 6, 8, and 9) are designed to produce high magnetic production in a specified direction.

AlNiCo grades vary in different areas of the world. There are mainly USA, MMPA, IEC, DIN, and UK standards.

Cast AlNiCo Magnet Grades - USA Standard/MMPA

Grade	Residual Induction (Br.) kGs mT		Coercive Force(Hcb.) Oe kA/m		Intrinsic Coercive Force(Hcj.) Oe kA/m		Max. Energy Product(BH.) KJ/m³ MGOe		Density g/cm³ ℃	Tw Max	Remark
AlNiCo1	7.2	720	470	37	480	38	11.1	1.4	6.9	450	Isotropic
AlNiCo2	7.5	750	560	45	580	46	13.5	1.7	7.1	450
AlNiCo3	7	700	480	38	500	40	10.7	1.35	6.9	450
AlNiCo5	12.8	1280	640	51	640	51	43.8	5.5	7.3	525	Anisotropic
AlNiCo5DG	13.3	1330	670	53	670	53	57.7	6.5	7.3	525
AlNiCo5-7	13.5	1350	740	59	740	59	59.7	7.5	7.3	525
AlNiCo6	10.5	1050	780	62	800	64	31	3.9	7.3	525
AlNiCo8	8.2	820	1650	131	1860	148	42.2	5.3	7.3	550
AlNiCo8HC	7.2	720	1900	151	2170	173	39.8	5	7.3	550
AlNiCo9	10.6	1060	1500	119	1500	119	71.6	9	7.3	550

Sintered AlNiCo Magnet Grades - USA Standard/MMPA

Grade	Residual Induction(Br.) kGs mT		Coercive Force(Hcb.) Oe kA/m		Intrinsic Coercive Force（Hcj.） Oe kA/m		Max. Energy Product BH. KJ/m³ MGOe		Density g/cm³	Tw Max ℃	Remark
AlNiCo2	7.1	710	550	44	570	45	11.9	1.5	6.9	450	Isotropic
AlNiCo5	10.9	1090	620	49	630	50	31	3.9	7.3	525	Anisotropic
AlNiCo6	9.4	940	790	63	820	65	23.1	2.9	7.3	525
AlNiCo8	7.4	740	1500	119	1690	134	31.8	4	7.3	550
AlNiCo8HC	6.7	670	1800	143	2020	161	35.8	4.5	7.3	550

More Information of AlNiCo Grades You May Need

Cast AlNiCo Magnet Properties

Grade	Residual Induction(Br.) kGs mT		Coercive Force(Hcb.) Oe kA/m		Max. Energy Product BH. KJ/m³ MGOe		USA stand MMPA	IEC stand IEC	DIN stand DE	UK stand UK
LN10	6.5	650	530	42	10	1.2	AlNiCo3	AlNiCo9/3	/	/
LNG11	7.2	720	480	37	11.2	1.4	AlNiCo1	AlNiCo8/4	AlNiCo120	AlNi
LNG13	7	700	620	50	13	1.6	AlNiCo2	AlNiCo12/6	AlNiCo160	AlNiCo
LNGT18	5.8	580	1250	100	18	2.2	I. AlNiCo 8	AlNiCo17/9	/	/
LNG16	8	800	660	53	16	2	AlNiCo4	/	/	/
LNG34	11.8	1180	550	44	34	4.25	AlNiCo5C	/	/	/
LNG37	12	1200	600	48	37	4.65		AlNiCo37/5	AlNiCo500	Alcomax2
LNG40	12.2	1220	630	50	40	5	AlNiCo5	/		/
LNG44	12.5	1250	650	52	44	5.5		AlNiCo44/5		Alcomax3
LNG52	13	1300	690	55	52	6.5	AlNiCo5DG	AlNiCo52/6	AlNiCo600	Alcomax3 S.C.
LNG60	13.3	1330	750	60	60	7.5	AlNiCo5-7	/	AlNiCo700	Columax
LNGT28	10.5	1050	700	56	28	3.5	AlNiCo6	AlNiCo26/6	AlNiCo400	Alcomax4
LNGT30	10.5	1050	750	60	30	3.75
LNGT32	8	800	1280	102	32	4	AlNiCo8	AlNiCo38/11	AlNiCo350	Hycomax2
LNGT40	8.2	820	1400	112	40	5
LNGT44	8.8	880	1540	123	44	5.5	AlNiCo8B	/	AlNiCo450	Hycomax3
LNGT48A	9.3	930	1540	123	48	6	AlNiCo8HE
LNGT48B	8.5	850	1650	132	48	6
LNGT60	9	900	1380	110	60	7.5	AlNiCo60/11	/	/
LNGT72	10.5	1050	1410	112	72	9	AlNiCo9	/	/	/
LNGT80	10.8	1080	1540	123	80	10
LNGT88	11	1100	1575	126	88	11
LNGT92	11.5	1150	1575	126	92	11.5
LNGT36J	7	700	1750	140	36	4.5	AlNiCo8HC	AlNiCo36/15	/	/
LNGT40J	7.2	720	1900	152	40	5
LNGT44J	8.2	820	1800	144	44	5.5	AlNiCo44/15	/	/

Sintered AlNiCo Magnet Properties

Grade	Residual Induction(Br.) kGs mT		Coercive Force(Hcb.) kA/m Oe		Intrinsic Coercive Force(Hcj.) kA/m Oe		Max. Energy Product BH. KJ/m3 MGOe		Density g/cm3
FLN8	5.2	520	40	500	43	540	45148	1-1.25	6.8
FLNG12	7	700	40	500	43	540	45274	1.5-1.75	6.9
FLNG14	5.7	570	76	950	78	980	14-16	1.75-2.0	6.9
FLNG18	5.6	560	88	1100	90	1130	18-22	2.25-2.75	7
FLNG28	10.5	1050	46	580	47	590	28-33	3.5-4.15	7.3
FLNG34	11	1100	48	600	50	630	33-38	4.1-4.7	7.3
FLNG35	12.2	1220	50	630	51	640	35-39	4.4-4.9	7.3
FLNGT28	10	1000	56	700	57	710	28-30	3.5-3.8	7.3
FLNGT31	7.8	780	104	1300	106	1130	33-36	3.9-4.5	7.3
FLNGT38	8	800	123	1550	126	1580	38-42	4.75-5.3	7.3
FLNGT42	8.8	880	120	1500	122	1530	42-44	5.3-5.5	7.3
FLNGT44	9	900	120	1500	125	1560	44-48	5.5-6.0	7.3
FLNG33J	6.5	650	136	1700	150	1880	31-36	4.1-4.5	7.3
FLNGT40J	8	800	1440	1800	155	1950	40-44	5.0-5.5	7.3
FLNGT44J	8.2	820	1520	1900	160	2000	44-48	5.5-6.0	7.3

The tables above are reference data for grade comparison. For a part-specific review, provide the drawing, grade or magnetic requirements, magnetization direction, operating conditions, quantity and acceptance criteria through the inquiry form. Availability and lead time are confirmed with the quotation.

AlNiCo Magnet Grades