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Hard Ferrite Magnets

Hard ferrite magnet (Ceramic magnet, magnetic metal, industrial magnet, magnet and steel, strontium ferrite magnet, barium ferrite magnet)

The elements of Ferrite magnet are ferric oxide/barium, strontium. Ferrite has higher coercive force and higher resistance to be demagnetized and oxidized than other non-rare earth permanent magnets. The biggest advantage of such magnet is their low cost. It is widely used from motors and loudspeakers to toys and craft, industrial holding magnet etc ..

Chinese standard
Grade	Br		Hcb		Hcj		(BH)max
	Br		Hcb		Hcj		(BH)max
	mT	KG	KA/m	KOe	KA/m	KOe	KJ/m3	MGOe




Y10T	200-235	2.0-2.35	125-160	1.57-2.01	210-280	2.64-3.52	6.5-9.5	0.8-1.2
Y20	320-380	3.2-3.8	135-190	1.70-2.38	140-195	1.76-2.45	18.0-22.0	2.3-2.8
Y22H	310-360	3.1-3.6	220-250	2.77-3.14	280-320	3.52-4.02	20.0-24.0	2.5-3.0
Y23	320-370	3.2-3.7	170-190	2.14-2.38	190-230	2.39-2.89	20.0-25.5	2.5-3.2
Y25	360-380	3.6-4.0	135-170	1.70-2.14	140-200	1.76-2.51	22.5-28.0	2.8-3.5
Y26H	360-390	3.6-3.9	220-250	2.77-3.14	225-255	2.83-3.21	23.0-28.0	2.9-3.5
Y27H	370-400	3.7-4.0	205-250	2.58-3.14	210-255	2.64-3.21	25.0-29.0	3.1-3.7
Y30	370-400	3.7-4.0	175-210	2.2-2.64	180-220	2.64-2.77	26.0-30.0	3.3-3.8
Y30BH	380-390	3.8-3.9	223-235	2.80-2.95	231-245	2.90-3.08	27.0-30.0	3.4-3.7
Y30-1	360-400	3.6-4.0	135-170	1.70-2.14	140-200	1.76-2.51	22.5-28.0	2.8-3.5
Y10T-1	380-400	3.8-4.0	230-275	2.89-3.46	235-290	2.95-3.65	27.0-32.0	3.4-4.0
Y20-2	395-415	3.95-4.15	275-300	3.46-3.77	310-335	3.90-4.21	28.5-32.5	3.5-4.0
Y32	400-420	4.0-4.2	160-190	2.01-2.38	165-195	2.07-2.45	30.0-33.5	3.8-4.2
Y33	410-430	4.1-4.3	220-250	2.77-314	225-255	2.83-3.21	31.5-35.0	4.0-4.4
Y35	400-410	4.00-4.10	175-195	2.20-2.45	180-200	2.26-2.51	30.0-32.0	3.8-4.0

USA standard
Material	Br		Hcb		Hcj		(BH)max
mT	KG	KA/m	KOe	KA/m	KOe	KJ/m3
C1	230	2.3	148	1.86	258	3.5	8.36
C5	380	3.8	191	2.4	199	2.5	27
C7	340	3.4	258	3.23	318	4	21.9
C8(C8A)	385	3.85	235	2.95	242	3.05	27.8
C9	380	3.8	280	3.516	320	4.01	26.4
C10	400	4	288	3.617	280	3.51	30.4
C11	430	4.3	200	2.512	204	2.56	34.4

Europe standard
The standard from International Electronics Committee (IEC404-8-1)
O×100=Y10T=C1 O×300=Y30=C5 O×330=Y30BH
Grade	Allowed Value (min/typical)
	Br		Hcb		Hcj		(BH)max
	Br		Hcb		Hcj		(BH)max
¡¡	mT	KG	KA/m	KOe	KA/m	KOe	KJ/m3
HF8/22	200/220	2.00/2.20	125/140	1.57/1.76	220/230	2.76/2.89	6.5/6.8
HF20/19	320/333	3.20/3.33	170/190	2.14/2.39	190/200	2.39/2.51	20.0/21.0
HF20/28	310/325	3.10/3.25	220/230	2.76/2.89	280/290	3.52/3.64	20.0/21.0
HF22/30	350/365	3.5/3.65	255/265	3.20/3.33	290/300	3.64/3.77	22.0/23.5
HF24/16	350/365	3.5/3.65	155/175	1.95/2.20	160/180	2.01/2.26	24.0/25.5
HF24/23	360/370	3.5/3.65	220/230	2.76/2.89	230/240	2.89/3.01	24.0/25.5
HF24/35	370/380	3.60/3.70	260/270	3.27/3.39	350/360	4.40/4.52	24.0/25.5
HF26/16	370/380	3.70/3.80	155/175	1.95/2.20	160/180	2.01/2.26	26.0/27.0
HF26/18	370/380	3.70/3.80	175/190	2.20/2.39	180/190	2.26/2.39	26.0/27.0
HF26/24	370/380	3.70/3.80	230/240	2.89/3.01	240/250	3.01/3.14	26.0/27.0
HF26/26	370/380	3.70/3.80	230/240	2.89/3.01	260/270	3.27/3.39	26.0/27.0
HF26/30	385/395	3.85/3.95	260/270	3.27/3.39	300/310	3.77/3.89	26.0/27.0