The hard ferrite is manufactured with SrO or BaO and Fe2O3 by ceramic process, it is also called ceramic mangets. Because of its cheaper price, and production process is relatively simple, compared with the prices of their products relatively cheap in terms of other magnets. The main raw materials of ferrite magnets is oxide, so, it could not be eroded due to the impact of chemical substances or the environment (except for acid). Therefore, the surface does not need electroplating treatment. It is mainly used in handicrafts, drawing annex, toys, motor, loud speakers.
Sintered Ferrite magnets have excellent corrosion resistance and have normal operating capabilities between -40 oC and +250 oC.
Applications of Ceramic Magnet
@Speaker magnets
@DC brushless motors
@Magnetic Resonance Imaging (MRI)
@DC permanent magnet motors (used in cars)
@Separators (separate ferrous material from
@Used in magnetic assemblies designed for lifting,
Holding, retrieving and separating
@Magnetic Door Catcher
@Instrument and Meters
@Toys
@Arts and crafts
Attributes of Ceramic Magnet
@High intrinsic coercive force
@Available in simple shapes only due to manufacturing process
@Lower service temperature than alnico, greater than rare earth
@Lower energy product than alnico and rare earth magnets
Attributes of Ceramic Magnet
@High intrinsic coercive force
@Available in simple shapes only due to manufacturing process
@Lower service temperature than alnico, greater than rare earth
@Lower energy product than alnico and rare earth magnets
Magnetic Properties of Sintered Ferrite Magnets
Grade |
Value |
Br |
Hcb(BHC) |
Hcj(IHC) |
(BH)max |
mT |
KG |
KA/m |
KOe |
KA/m |
KOe |
Kj/m3 |
MGOe |
Y10T(=C1) |
200/218 |
2.00/2.18 |
125/145 |
1.57/1.82 |
210/250 |
2.64/3.14 |
6.5/8.0 |
0.8/1.0 |
Y25 |
360/370 |
3.60/3.70 |
135/150 |
1.70/1.88 |
140/170 |
1.76/2.14 |
22.5/25.3 |
2.8/3.2 |
Y30(=C5) |
380/385 |
3.80/3.85 |
191/210 |
2.40/2.64 |
199/220 |
2.50/2.51 |
26.0/28 |
3.4/3.7 |
Y30BH |
380/390 |
3.80/3.90 |
223/235 |
2.80/2.95 |
231/245 |
2.90/3.08 |
27.0/30.0 |
3.4/3.7 |
Y33 |
410/420 |
4.10/4.20 |
220/235 |
2.77/2.95 |
225/240 |
2.83/3.01 |
31.5/33.0 |
4.0/4.2 |
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 |
C8(=C8A) |
385/390 |
3.85/3.90 |
235/255 |
2.95/3.20 |
242/265 |
3.05/3.33 |
27.8/30.0 |
3.5/3.7 |
C10 |
400/410 |
4.00/4.10 |
288/300 |
3.62/3.77 |
280/287 |
3.51/3.60 |
30.4/31.9 |
3.8/4.0 |
Chinese standard
Material |
Br |
HcB |
HcJ |
(BH)max |
mT |
KG |
KA/m |
Oe |
KA/m |
Oe |
Kj/m3 |
MGOe |
Y8T |
200~235 |
≥ 2000 |
125~160 |
≥ 1570 |
210~280 |
≥ 2610 |
6.5~9.5 |
≥ 0.8 |
Y22H |
310~360 |
≥ 3100 |
220~250 |
≥ 2770 |
280~320 |
≥ 3520 |
20.0~24.0 |
≥ 2.5 |
Y25 |
360~400 |
≥ 3600 |
135~170 |
≥ 1700 |
140~200 |
≥ 1760 |
22.5~28.0 |
≥ 2.8 |
Y26H-1 |
360~390 |
≥ 3600 |
220~250 |
≥ 2512 |
225~255 |
≥ 2830 |
23.0~28.0 |
≥ 2.9 |
Y26H-2 |
360-380 |
≥ 3600 |
263-288 |
≥ 3300 |
318-350 |
≥ 4000 |
24.0-28.0 |
≥ 3.0 |
Y27H |
370~400 |
≥ 3500 |
225-240 |
≥ 2830 |
235-260 |
≥ 2950 |
25.0~29.0 |
≥ 3.1 |
Y28 |
370-400 |
≥ 3700 |
175-210 |
≥ 2200 |
180-220 |
≥ 2260 |
26.0-30.0 |
≥ 3.3 |
Y28H-1 |
380-400 |
≥ 3800 |
240-260 |
≥ 3020 |
250-280 |
≥ 3140 |
27.0-30.0 |
≥ 3.1 |
Y28H-2 |
360-380 |
≥ 3600 |
271-295 |
≥ 3400 |
382-405 |
≥ 1800 |
26.0-30.0 |
≥ 3.3 |
Y30 |
370~400 |
3.7~4.0 |
175~210 |
2.20~2.64 |
180~220 |
2.26~2.77 |
26.0~30.0 |
3.3~3.8 |
Y30H-1 |
380~400 |
≥ 3800 |
230-275 |
≥ 2890 |
235-290 |
≥ 2950 |
27.0~32.5 |
≥ 3.4 |
Y30H-2 |
395-415 |
≥ 3950 |
275-300 |
≥ 3460 |
310-335 |
≥ 3900 |
27.0~32.0 |
≥ 3.4 |
Y32 |
400~420 |
≥ 4000 |
160~190 |
≥ 2010 |
165~195 |
≥ 2070 |
30.0~33.5 |
≥ 3.8 |
Y32H-1 |
400-420 |
≥ 4000 |
190-230 |
≥ 2390 |
230-250 |
≥ 2890 |
34.5-35.0 |
≥ 4.0 |
Y32H-2 |
400-440 |
≥ 4000 |
224-240 |
≥ 2810 |
230-250 |
≥ 2890 |
31.0-34.0 |
≥ 3.9 |
Y33 |
410~430 |
≥ 4100 |
220~250 |
≥ 2760 |
225~255 |
≥ 2830 |
31.5~35.0 |
≥ 4.0 |
Y33H |
410-430 |
≥ 4100 |
250-270 |
≥ 3140 |
250-275 |
≥ 3140 |
31.5-35.0 |
≥ 4.0 |
Y34 |
420-440 |
≥ 4200 |
200-230 |
≥ 2510 |
205-235 |
≥ 2580 |
32.5-36.0 |
≥ 4.1 |
Y35 |
430-450 |
≥ 4300 |
215-239 |
≥ 2700 |
217-242 |
≥ 2730 |
33.1-33.2 |
≥ 4.2 |
Y36 |
440-450 |
≥ 4400 |
247-271 |
≥ 3100 |
250-374 |
≥ 4400 |
35.1-38.3 |
≥ 4.4 |
Y38 |
440-460 |
≥ 4400 |
285-305 |
≥ 3580 |
294-310 |
≥ 3690 |
36.6-40.6 |
≥ 4.6 |
Y40 |
450-460 |
≥ 4500 |
330-354 |
≥ 4150 |
340-360 |
≥ 4270 |
37.6-41.8 |
≥ 4.7 |
USA standard
Material |
Br |
HcB |
HcJ |
(BH)max |
mT |
KG |
KA/m |
KOe |
KA/e |
KOe |
kj/m3 |
MGOe |
C1 |
230 |
2.3 |
148 |
1.86 |
258 |
3.5 |
8.36 |
1.05 |
C5 |
380 |
3.8 |
191 |
2.4 |
199 |
2.5 |
27 |
3.4 |
C7 |
340 |
3.4 |
258 |
3.23 |
318 |
4.00 |
21.9 |
2.75 |
C8(=C8A) |
385 |
3.85 |
235 |
2.95 |
242 |
3.05 |
27.8 |
3.5 |
C8B |
420 |
4.2 |
232 |
2.913 |
236 |
2.96 |
32.8 |
4.12 |
C9 |
380 |
3.8 |
280 |
3.516 |
320 |
4.01 |
26.4 |
3.32 |
C10 |
400 |
4.0 |
288 |
3.617 |
280 |
3.51 |
30.4 |
3.82 |
C11 |
430 |
4.3 |
200 |
2.512 |
204 |
2.56 |
34.4 |
4.32 |
Europe standard
The standard from International Electronics Committee(IEC404-8-1)
Grade |
Allowed Value (min/typical) |
Br |
Hcb(BHC) |
Hcj(IHC) |
(BH)max |
MT |
KG |
KA/m |
KOe |
KA/m |
KOe |
Kj/m3 |
MGOe |
HF8/22 |
200/220 |
2.00/2.20 |
125/140 |
1.57/1.76 |
220/230 |
2.76/2.89 |
6.5/6.8 |
0.8/1.1 |
HF20/19 |
320/333 |
3.20/3.33 |
170/190 |
2.14/2.39 |
190/200 |
2.39/2.51 |
20.0/21.0 |
2.5/2.7 |
HF20/28 |
310/325 |
3.10/3.25 |
220/230 |
2.76/2.89 |
280/290 |
3.52/3.64 |
20.0/21.0 |
2.5/2.7 |
HF22/30 |
350/365 |
3.50/3.65 |
255/265 |
3.20/3.33 |
290/300 |
3.64/3.77 |
22.0/23.5 |
2.8/3.0 |
HF24/16 |
350/365 |
3.50/3.65 |
155/175 |
1.95/2.20 |
160/180 |
2.01/2.26 |
24.0/25.5 |
3.0/3.2 |
HF24/23 |
350/365 |
3.50/3.65 |
220/230 |
2.76/2.89 |
230/240 |
2.89/3.01 |
24.0/25.5 |
3.0/3.2 |
HF24/35 |
360/370 |
3.60/3.70 |
260/270 |
3.27/3.39 |
350/360 |
4.40/4.52 |
24.0/25.5 |
3.0/3.2 |
HF26/16 |
370/380 |
3.70/3.80 |
155/175 |
1.95/2.20 |
160/180 |
2.01/2.26 |
26.0/27.0 |
3.2/3.4 |
HF26/18 |
370/380 |
3.70/3.80 |
175/190 |
2.20/2.39 |
180/190 |
2.26/2.39 |
26.0/27.0 |
3.3/3.4 |
HF26/24 |
370/380 |
3.70/3.80 |
230/240 |
2.89/3.01 |
240/250 |
3.01/3.14 |
26.0/27.0 |
3.3/3.4 |
HF26/26 |
370/380 |
3.70/3.80 |
230/240 |
2.89/3.01 |
260/270 |
3.27/3.39 |
26.0/27.0 |
3.3/3.4 |
HF26/30 |
385/395 |
3.85/3.95 |
260/270 |
3.27/3.39 |
300/310 |
3.77/3.89 |
26.0/27.0 |
3.3/3.4 |
HF28/26 |
385/395 |
3.85/3.95 |
250/265 |
3.14/3.33 |
260/275 |
3.27/3.45 |
28.0/30.0 |
3.5/3.8 |
HF28/28 |
385/395 |
3.85/3.95 |
260/270 |
3.27/3.39 |
280/290 |
3.50/3.60 |
28.0/30.0 |
3.5/3.8 |
HF30/26 |
395/405 |
3.95/4.05 |
250/260 |
3.14/3.33 |
260/270 |
3.27/3.39 |
30.0/31.5 |
3.8/3.9 |
HF32/17 |
410/420 |
4.10/4.20 |
160/180 |
2.01/2.26 |
165/175 |
2.07/2.20 |
32.0/33.0 |
4.0/4.1 |
HF32/22 |
410/420 |
4.10/4.20 |
215/225 |
2.70/2.83 |
220/230 |
2.76/2.89 |
32.0/33.0 |
4.0/4.1 |
HF32/25 |
410/420 |
4.10/4.20 |
240/250 |
3.01/3.14 |
250/260 |
3.14/3.27 |
32.0/33.0 |
4.0/4.1 |
Japan TDK standard
Grade |
Composition |
Br |
Hcb |
Hcj |
BH max |
mT |
kG |
kA/m |
kOe |
kA/m |
kOe |
KJ/m3 |
MGOe |
FB40 |
SrO6Fe2O3 |
410+/-10 |
4.1+/-10 |
234.8+/-11.9 |
2.95+/-0.15 |
238.7+/-15.9 |
3.0+/-0.2 |
31.4+/-1.6 |
3.95+/-0.2 |
FB3N |
SrO6Fe2O3 |
395+/-15 |
3.95+/-15 |
234.8+/-11.9 |
2.95+/-0.15 |
238.7+/-15.9 |
3.0+/-0.2 |
28.7+/-2.4 |
3.6+/-0.3 |
FB3G |
SrO6Fe2O3 |
375+/-15 |
3.75+/-15 |
254.6+/-15.9 |
3.2+/-0.2 |
270.6+/-19.9 |
3.4+/-0.25 |
25.9+/-2.4 |
3.25+/-0.3 |
FB3X |
SrO6Fe2O3 |
375+/-15 |
3.75+/-15 |
234.8+/-11.9 |
2.95+/-0.15 |
238.7+/-15.9 |
3.0+/-0.2 |
25.9+/-2.4 |
3.25+/-0.3 |
FB1A |
SrO6Fe2O3 |
220+/-15 |
2.20+/-15 |
159.2+/-15.9 |
2.0+/-0.2 |
258.6+/-19.9 |
3.25+/-0.25 |
8.9+/-1.6 |
1.1+/-0.2 |
FB5H |
SrO6Fe2O3 |
405+/-15 |
4.05+/-15 |
298.4+/-11.9 |
3.75+/-0.15 |
322.3+/-11.9 |
4.05+/-0.15 |
31.1+/-1.6 |
3.9+/-0.2 |
FB4X |
SrO6Fe2O3 |
420+/-10 |
4.20+/-10 |
234.8+/-11.9 |
2.95+/-0.15 |
238.7+/-15.9 |
3.0+/-0.2 |
33.4+/-1.6 |
4.2+/-0.2 |
FB4B |
SrO6Fe2O3 |
400+/-10 |
4.00+/-10 |
254.6+/-11.9 |
3.2+/-0.2 |
262.6+/-19.9 |
3.3+/-0.25 |
30.3+/-1.6 |
3.8+/-0.2 |
FB4A |
SrO/ BaO6Fe2O3 |
410+/-10 |
4.10+/-10 |
175.1+/-15.9 |
2.2+/-0.2 |
176.7+/-15.9 |
2.22+/-0.2 |
31.8+/-1.6 |
4.0+/-0.2 |
FBGN |
SrO6Fe2O3 |
440+/-10 |
4.40+/-10 |
258.6+/-11.9 |
3.25+/-0.15 |
262.6+/-11.9 |
3.3+/-0.15 |
36.7+/-1.6 |
4.6+/-0.2 |
FB6B |
SrO6Fe2O3 |
420+/-10 |
4.20+/-10 |
302.4+/-11.9 |
3.8+/-0.15 |
318.3+/-11.9 |
4.0+/-0.15 |
33.4+/-1.6 |
4.2+/-0.2 |
FB6H |
SrO6Fe2O3 |
400+/-10 |
4.00+/-10 |
302.4+/-11.9 |
3.8+/-0.15 |
358.1+/-11.9 |
4.5+/-0.15 |
30.3+/-1.6 |
3.8+/-0.2 |
FB6E |
SrO6Fe2O3 |
380+/-10 |
3.80+/-10 |
290.5+/-11.9 |
3.65+/-0.15 |
393.9+/-11.9 |
4.95+/-0.15 |
27.5+/-1.6 |
3.45+/-0.2 |
FB5N |
SrO6Fe2O3 |
440+/-10 |
4.40+/-10 |
256.8+/-11.9 |
2.85+/-0.15 |
2259.2+/-11.9 |
2.88+/-0.15 |
36.7+/-1.6 |
4.6+/-0.2 |
FB5B |
SrO6Fe2O3 |
420+/-10 |
4.20+/-10 |
262.6+/-11.9 |
3.3+/-0.15 |
266.6+/-11.9 |
3.35+/-0.15 |
33.4+/-1.6 |
4.2+/-0.2 |
Physical Characteristics
Compressive Strength |
1.4 x 104 kg/cm2 |
Required Magnetizing Field |
12, 000 – 15, 000 Oe |
Electrical Resistivity |
> 104 μ -ohm-cm/cm2 |
Density |
4.7-5.0 g/cm3 |
Recoil Permeability |
1.05 μ r |
Rev. Temp. Coeff. |
-0.20 %/° C |
Sinoneo Magnet Co., Ltd. (Ningbo Xinao Magnets Co., Ltd. ) is located in Ningbo, Zhejiang Province; With convenient transportation access offered by the nearby international air and sea ports.
As specialized producer of magnetic materials and magnet assembly, we can supply:
Magnetic Material: NdFeB Magnets, Ferrite Magnets, SmCo Magnets, Ceramic Magnets, AlNiCo Magnets, Flexible Rubber Magnets, Magnetic Powder, Magnetic Strip, Magnetic Sheet, Magnetic Roll, Daily Use Magnets
Magnetic Assembly: Magnetic Lifter, Magnetic Pot, Magnetic Filter, Magnetic Chuck, Magnetic Bar, Magnetic Catcher, Magnetic Attractor, Magnetic Fuel Saver, Magnetic Gas Saver, Multi-Use Magnets Suit, Magnetic Hooks, Magnetic Door Catcher, Magnetic Door Stopper, Magnetic Hitch Aligner, Magnetic Tray, Magnetic Bowl Set, Magnetic Jewellery Clasp, Magnetic Thumbtacks, Magnetic Ruler, Educational Magnet, Magnetic Floating Globe, Magnetic Toys
With our high quality products, competitive price and professional experience in magnet industry, we have export to North America, Western Europe, Eastern Europe, South America, Southeast Asia, MID East, Oceania, Africa.
If you are looking for a high quality product, reasonable price and total magnetic solutions-engineering assistance, Sinoneo Magnets is your best choice. We want to join in hands with every cooperator to proceed together and make our beautiful future.
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