AlNiCo Magnets

AlNiCo magnets are a sophisticated alloy primarily composed of aluminum, nickel, cobalt, copper, and iron. It is available in two distinct forms: cast and sintered, each shaped by unique manufacturing processes. The cast AlNiCo magnets possess exceptional hardness and brittleness. Consequently, machining or drilling is not possible through conventional methods. The casting process usually entails the creation of holes at the foundry. The magnets are cast or sintered as closely as possible to the desired size, effectively minimizing the need for abrasive grinding to achieve the specified dimensions and tolerances.

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Sintered AlNiCo Magnets

The sintered AlNiCo magnet boasts slightly inferior magnetic properties, yet exhibits superior mechanical properties compared to cast AlNiCo materials. Particularly in smaller sizes, the sintered AlNiCo magnet emerges as the optimal choice. The sintering process also proves adept at large-scale production, resulting in parts that possess an enhanced structural strength compared to their cast counterparts. Precise tolerances can be achieved without the need for grinding.

Grade	Br		Hcb		Hcj		(BH)max		Tc	αBr	Density	Remarks
Grade	mT	kGs	kA/m	kOe	kA/m	kOe	kJ/m³	MGOe	°C	%/°C	g/cm³	Remarks
SLN8	520	5.2	40	0.5	43	0.54	8~10	1.0~1.25	760	-0.022	6.8	Isotropic
SLNG12	700	7	40	0.5	43	0.54	12~14	1.5~1.75	810	-0.014	7
SLNGT14	570	5.7	76	0.95	78	0.98	14~16	1.75~2.0	850	-0.016	7.1
SLNGT18	560	5.6	88	1.1	90	1.13	18~22	2.25~2.75	850	-0.016	7.2
SLNG28	1050	10.5	46	0.58	47	0.59	28~33	3.5~4.15	850	-0.02	7.2	Anisotropic
SLNG34	1100	11	50	0.63	51	0.64	34~38	4.3~4.8	890	-0.02	7.2
SLNGT28	1000	10	56	0.7	57	0.71	28~30	3.5~3.8	850	-0.02	7.2
SLNGT31	780	7.8	104	1.3	106	1.13	33~36	3.9~4.5	850	-0.02	7.2
SLNG33J	650	6.5	136	1.7	150	1.88	31~36	4.15~4.5	850	-0.02	7.2
SLNGT38	800	8	123	1.55	126	1.58	38~42	4.75~5.3	850	-0.02	7.2
SLNGT42	880	8.8	120	1.5	122	1.53	42~48	5.3~6.0	850	-0.02	7.25

Cast Alnico Magnets

Cast AlNiCo 5 is the most commonly employed form of cast AlNiCo magnets. It exhibits exceptional magnetic properties, with a high energy product of 5 MGOe or more. Consequently, it finds extensive application in various rotating machinery, communication systems, meters and instruments, sensors, and holding mechanisms. The enhanced resistance to demagnetization displayed by AlNiCo 8, with its elevated cobalt content of up to 35%, enables this particular material to excel in applications involving short lengths or length-to-diameter ratios of less than 2:1.

Grade	Br		Hcb		(BH)max		Density	Tc	Tw	αBr	MMPA	IEC
Grade	mT	kGs	kA/m	kOe	kJ/m³	MGOe	g/cm³	°C	°C	%/°C	Equivalent	Equivalent
1.Isotropy
*CLN9	690	6.9	37	0.47	9	1.13	6.9	760	≤450	-0.03	Alnico 3	Alnico 9/3
*CLN10	600	6	40	0.5	10	1.25	6.9	760	≤450	-0.03	Alnico 3	Alnico 9/3
*CLNG12	720	7.2	45	0.6	12	13.5	7	810	≤450	-0.03	Alnico 2	Alnico 12/6
*CLNG13	700	7	48	0.6	13	1.63	7	810	≤450	-0.03	Alnico 2	Alnico 12/6
2.LNG Series
CLNG16	800	8	53	0.66	16	2	7.3	850	≤525	-0.02	[Alnico 4]	/
CLNG28	1050	10.5	46	0.6	30	3.75	7.3	850	≤525	-0.02	[Alnico 4]	/
CLNG32	1180	11.8	46	0.575	32	4	7.3	890	≤525	-0.02	[Alnico 5C]	/
CLNG34	1180	11.8	46	0.575	34	4.25	7.3	890	≤525	-0.02	[Alnico 5C]	/
CLNG37	1200	12	48	0.6	37	4.65	7.3	890	≤525	-0.02	Alnico 5	Alnico 37/5
CLNG40	1250	12.5	48	0.6	40	5	7.3	890	≤525	-0.02	Alnico 5	/
CLNG44	1250	12.5	52	0.65	44	5.5	7.3	890	≤525	-0.02	Alnico 5	Alnico 44/5
CLNG48	1250	12.5	52	0.65	48	6	7.3	890	≤525	-0.02	Alnico 5DG	Alnico 52/6
CLNG52	1300	13	56	0.7	52	6.5	7.3	890	≤525	-0.02	Alnico 5DG	Alnico 52/6
CLNG60	1350	13.5	56	0.7	60	7.5	7.3	890	≤525	-0.02	Alnico 5~7	/
3.LNGT Series of High Performance
*CLNGT18	580	5.8	90	1.13	18	2.2	7.3	860	≤550	-0.03	Alnico 7	Alnico 17/9
CLNGT32	800	8	100	1.25	32	4	7.3	860	≤550	-0.03	Alnico 8	Alnico 38/11
CLNGT34	800	8	104	1.3	34	4.25	7.3	860	≤550	-0.03	Alnico 8	Alnico 38/11
CLNGT38	820	8.2	110	1.38	38	4.75	7.3	860	≤550	-0.03	Alnico 8	Alnico 38/11
CLNGT44	880	8.8	120	1.5	44	5.5	7.3	860	≤550	-0.03	Alnico 8	/
CLNGT60	900	9	110	1.38	60	7.5	7.3	860	≤550	-0.03	Alnico 9	Alnico 60/11
CLNGT72	1050	10.5	112	1.41	72	9	7.3	860	≤550	-0.03	Alnico 9	/
CLNGT82	1100	11	120	1.5	82	10.25	7.3	860	≤550	-0.03	Alnico 9	/
CLNGT36J	700	7	140	1.75	36	4.5	7.3	860	≤550	-0.03	Alnico 8HC	Alnico 36/15
Remark：*Isotropic, others are anisotropic.