Ferrite Magnet
Sintered Ferrite

Sintered Ferrite Magnet is manufactured from oxide material by powder metallurgical process. Its advantages include: low cost, excellent corrosion resistance, resistance to be demagnetized etc. The normal working temperature of ferrite magnet is between -40°C and +250°C. It can be magnetized before or after assembly. Generally, sintered ferrite magnet can be machined to regular shapes like segment, blocks, rings and discs etc. The normal grade for sintered Ferrite magnets are Y10T, Y25, Y30, Y30BH, Y35 etc.
 
 

Magnetic and Physical Properties for Sintered Ferrite magnet（Chinese Standard）
GRADE	Br(Gs)	Hcb(Oe)	HcJ(Oe)	(BH)max(MGOe)
Y8T	2000 - 2350	1570 - 2010	2640 - 3520	0.8 -  1.2
Y10T	>2000	1600	2640	0.81
Y20	3200 - 3800	1700 - 2390	1760 - 2450	2.3 - 2.8
Y22H	3100 - 3600	2770 - 3140	3520 - 4020	2.5 - 3.0
Y23	3200 - 3700	2140 - 2390	2390 - 2890	2.5 - 3.2
Y25	3600 - 4000	1700 - 2140	1760 - 2510	2.8 - 3.5
Y26H	3600 - 3900	2770 - 3140	2830 - 3200	2.9 - 3.5
Y27H	3700 - 4000	2580 - 3140	2640 - 3200	2.9 - 3.5
Y28	3700 - 4000	2200 - 2640	2260 - 2770	3.3 - 3.8
Y30	>3800	2400	2500	3.3
Y30BH	>3850	2800	2900	3.4
Y30H-1	3800 - 4000	2890 - 3455	2950 - 3640	3.4 - 4.1
Y30H-2	3950 - 4150	3460 - 3770	3900 - 4210	3.6 - 4.0
Y32	4000 - 4200	2010 - 2390	2070 - 2450	3.8 - 4.2
Y33	4100 - 4300	2770 - 3140	2830 - 3200	4.0 - 4.4
Y33H	>3850	3150	3250	3.7
Y35	>4000	2600	2700	3.85
Y35BH	>4000	>2952	>3014	3.7
微波炉磁	>4150	2800	2900	4.1
Magnetic and Physical Properties for Sintered Ferrite magnet（German Standard）
GRADE	Br(Gs)	Hcb(Oe)	HcJ(Oe)	(BH)max(MGOe)
HF8/22	200-220	125-140	220-230	6.5-6.8
	(2.00-2.20)	(1.57-1.76)	(2.76-2.89)	(0.8-1.1)
HF20/19	320-333	170-190	190-200	20.0-21.0
	(3.20-3.33)	(2.14-2.39)	(2.39-2.51)	(2.5-2.7)
HF20/28	310-325	220-230	280-290	20.0-21.0
	(3.10-3.25)	(2.76-2.89)	(3.20-3.64)	(2.5-2.7)
HF22/30	350-365	255-265	290-300	22.0-23.5
	(3.50-3.65)	(3.20-3.33)	(3.64-3.77)	(2.8-3.0)
HF24/16	350-365	155-175	160-180	24.0-25.5
	(3.50-3.65)	(1.95-2.20)	(2.01-2.26)	(3.0-3.2)
HF24/23	350-365	220-230	230-240	24.0-25.5
	(3.50-3.65)	(2.76-2.89)	(2.89-3.01)	(3.0-3.2)
HF24/25	360-370	260-270	350-360	24.0-25.5
	(3.60-3.70)	(3.27-3.39)	(4.40-4.52)	(3.0-3.2)
HF26/16	370-380	155-175	160-180	26.0-27.0
	(3.70-3.80)	(1.95-2.20)	(2.01-2.26)	(3.2-3.4)
HF26/18	370-380	175-190	180-190	26.0-27.0
	(3.70-3.80)	(2.20-2.39)	(2.26-2.39)	(3.3-3.4)
HF26/24	370-380	230-240	240-250	26.0-27.0
	(3.70-3.80)	(2.89-3.01)	(3.01-3.14)	(3.3-3.4)
HF26/26	370-380	230-240	260-270	26.0-27.0
	(3.70-3.80)	(2.89-3.01)	(3.27-3.39)	(3.3-3.4)
HF26/30	385-395	260-270	300-310	26.0-27.0
	(3.85-3.95)	(3.27-3.39)	(3.77-3.89)	(3.3-3.4)
HF28/26	385-395	250-265	260-275	28.0-30.0
	(3.85-3.95)	(3.14-3.33)	(3.27-3.45)	(3.5-3.8)
HF28/28	385-395	260-270	280-290	28.0-30.0
	(3.85-3.95)	(3.27-3.39)	(3.50-3.60)	(3.5-3.8)
HF30/26	395-405	250-260	260-270	30.0-31.5
	(3.95-4.05)	(3.14-3.33)	(3.27-3.39)	(13.8-3.9)
HF32/17	410-420	160-180	165-175	32.0-33.0
	(4.10-4.20)	(2.01-2.26)	(2.07-2.20)	(4.0-4.1)
HF32/22	410-420	215-225	220-230	32.0-33.0
	(4.10-4.20)	(2.70-2.83)	(2.76-2.89)	(4.0-4.1)
HF32/25	410-420	240-250	250-260	32.0-33.0
	(4.10-4.20)	(3.01-3.14)	(3.14-3.27	(4.0-4.1)
Magnetic and Physical Properties for Sintered Ferrite magnet（American Standard）
GRADE	Br(Gs)	Hcb(Oe)	HcJ(Oe)	(BH)max(MGOe)
C - 1	2300	1860	3500	1.05
C - 5	3800	2400	2500	3.40
C - 7	3400	3230	4000	2.75
C-8	>3850	2950	3050	3.5
C - 8B	4200	2913	2960	4.12
C - 8C	>4300	2500	2550	4.3
C - 9	3800	3516	4010	3.32
C - 10	4000	3617	3510	3.82
C - 11	4300	2512	2560	4.32
C - 12	3900	3667	3893	3.9
Magnetic and Physical Properties for Sintered Ferrite magnet（Japanese Standard）
GRADE	Br(Gs)	Hcb(Oe)	HcJ(Oe)	(BH)max(MGOe)
FB9N	4500	3355	3455	4.88
FB9B	4400	4146	4347	4.65
FB9H	4200	4008	4850	4.20
FB6N	4300	3104	3154	4.41
FB6B	4100	3656	3845	4.00
FB6H	3900	3656	4347	3.60
FB6E	3700	3505	4800	3.25
FB5N	4300	2702	2727	4.41
FB5B	4100	3154	3753	4.00
FB5H	3950	3594	3907	3.70
FB4A	4000	2000	2025	3.80
FB4D	4000	2802	2853	3.74
FB3N	3850	2802	2853	3.30
FB3G	3600	3004	3154	2.95
FB1A	2050	1798	3004	0.92

Typical Applications:
Electric Motors
Loudspeaker
Magnetic Knife Holder /Rack
General Holding Devices and so on
 
Injection Ferrite
 
Injection Ferrite Magnet is manufactured from oxide material by powder metallurgical process,which is made by bonded ferrite magnet powder, plastics (PVC, Nylon, PP, etc) and other materials togerther. During the injecting process, the combination can be made into flexible magnets with precise sizes and complicated shapes, which can be assembled with metal and plastic parts.
 
Typical Applications:
DC Permanent Motor
Duplicator Roller and so on