1.Manufacture process:

Alnico magnets are manufactured through casting sintering or bonded processes.
Sintered magnets are manufactured by compacting fine Alnico powder in a press, and then sintering the compacted powder into a solid magnet.
Cast magnets are manufactured by pouring a molten metal alloy into a mold and then further processing it through various heat-treat cycles. The resulting magnet has a dark gray exterior appearance, and may have a rough surface. Machined surfaces have a shiny appearance similar to steel.

2.Typical propertise of Sintered Alnico Magnet:

Grade	Max. Energy Product	Remanence	coercivity	Instrinsic Coercivity	Density	Temp Coeff of Remanence	Curie temperature	Remarks
	(BH)max KJ/m3	Br mT	Hcb kA/m	Hcj kA/m	d g/cm3	α(Br) %/℃	Tc ℃
SAINiCo4/1	3.2-4.8	870-890	9-11	10-12	6.8	-0.02	750	isotropy
SAINiCo8/5	8.5-9.5	530-620	45-50	47-52	6.8	-0.02	750
SAINiCo10/5	9.5-11	630-700	48-56	50-58	6.8	-0.02	780
SAINiCo12/5	11-13	700-750	50-56	53-58	7.0	-0.02	800
SAINiCo14/5	13-15	730-800	47-50	50-53	7.1	-0.02	790
SAINiCo14/6	14-16	620-810	56-64	58-66	7.1	-0.02	790
SAINiCo14/8	14-16	550-610	75-88	80-92	7.1	-0.01	850
SAINiCo18/10	16-19	570-620	92-100	99-107	7.2	-0.01	860
SAINiCo35/5	35-39	1100-1200	48-52	50-54	7.20	-0.02	850	Anisotropy
SAINiCo29/6	29-33	970-1090	58-64	60-66	7.20	-0.02	860
SAINiCo32/10	33-38	770-870	90-104	94-109	7.20	-0.01	860
SAINiCo33/11	33-38	700-800	107-115	111-119	7.20	-0.01	860
SAINiCo39/12	39-43	830-900	115-123	119-127	7.25	-0.01	860
SAINiCo44/12	44-48	900-950	119-127	124-132	7.25	-0.01	860
SAINiCo37/15	37-41	700-800	143-151	150-158	7.10	-0.1	870