Ceramic magnets, also known as ferrite magnets, are a type of permanent magnet mainly made from SrO or BaO and Fe2O3 as raw materials. Compared to other permanent magnet magnets, ceramic magnets are hard and brittle, with lower magnetic energy. However, it is not easy to demagnetize and corrode, and the production process is simple and inexpensive. Therefore, ferrite magnets have the highest production capacity in the entire magnet industry and are widely used in industrial production.
| Grade | Br | Hcb | Hcj | （BH）max | Equivalent grade with other domestic and foreign standards | |||||||
|
SJ/T104
10-2016
|
mT | Gs | kA/m | Oe | kA/m | Oe | kJ/m3 | MGOe | Japan TDK | USA MMPA | Germany HF | China old standard |
| Y8T | 200-235 | 2000-2350 | 125-160 | 1570-2010 | 210-280 | 2640-3520 | 6.5-9.5 | 0.82-1.19 | FB1A | C1 | HF8/22 | |
| Y25 | 360-400 | 3600-4000 | 135-170 | 1700-2140 | 140-200 | 1760-2520 | 22.5-28.0 | 2.83-3.52 | HF24/16 | |||
| Y26H-1 | 360-390 | 3600-3900 | 200-250 | 2520-3140 | 225-255 | 2830-3200 | 23.0-28.0 | 2.89-3.52 | FB3X | HF24/23 | ||
| Y28 | 370-400 | 3700-4000 | 175-210 | 2200-2640 | 180-220 | 2260-2760 | 26.0-30.0 | 3.27-3.77 | C5 | HF26/18 | Y30 | |
| Y28H-1 | 380-400 | 3800-4000 | 240-260 | 3015-3270 | 250-280 | 3140-3520 | 27.0-30.0 | 3.39-3.77 | FB3G | C8 | HF28/26 | |
| Y28H-2 | 360-380 | 3600-3800 | 271-295 | 3405-3705 | 382-405 | 4800-5090 | 26.0-28.5 | 3.27-3.58 | FB6E | C9 | HF24/35 | |
| Y30H-1 | 380-400 | 3800-4000 | 230-275 | 2890-3450 | 235-290 | 2950-3650 | 27.0-31.5 | 3.39-3.96 | FB3N | HF28/24 | Y30BH | |
| Y30H-2 | 395-415 | 3950-4150 | 275-300 | 3450-3770 | 310-335 | 3900-4210 | 27.0-32.0 | 3.39-4.02 | (FB5DH) | C10(C8A) | HF28/30 | |
| Y32 | 400-420 | 4000-4200 | 160-190 | 2010-2400 | 165-195 | 2080-2450 | 30.0-33.5 | 3.77-4.21 | FB4A | HF30/16 | ||
| Y32H-1 | 400-420 | 4000-4200 | 190-230 | 2400-2900 | 230-250 | 2900-3140 | 31.5-35.0 | 3.96-4.40 | HF32/17 | Y35 | ||
| Y32H-2 | 400-440 | 4000-4400 | 224-240 | 2800-3020 | 230-250 | 2900-3140 | 31.0-34.0 | 3.89-4.27 | FB4D | HF30/26 | Y35BH | |
| Y33 | 410-430 | 4100-4300 | 220-250 | 2760-3140 | 225-255 | 2830-3200 | 31.5-35.0 | 3.96-4.40 | HF32/22 | |||
| Y33H | 410-430 | 4100-4300 | 250-270 | 3140-3400 | 250-275 | 3140-3450 | 31.5-35.0 | 3.96-4.40 | (FB5D) | HF32/25 | ||
| Y33H-2 | 410-430 | 4100-4300 | 285-315 | 3580-3960 | 305-335 | 3830-4210 | 31.8-35.0 | 4.0-4.40 | FB6B | C12 | HF30/32 | |
| Y34 | 420-440 | 4200-4400 | 250-280 | 3140-3520 | 260-290 | 3270-3650 | 32.5-36.0 | 4.08-4.52 | C8B | HF32/26 | ||
| Y35 | 430-450 | 4300-4500 | 230-260 | 2900-3270 | 240-270 | 3015-3400 | 33.1-38.2 | 4.16-4.80 | FB5N | C11(C8C) | ||
| Y36 | 430-450 | 4300-4500 | 260-290 | 3270-3650 | 265-295 | 3330-3705 | 35.1-38.3 | 4.41-4.81 | FB6N | HF34/30 | ||
| Y38 | 440-460 | 4400-4600 | 285-315 | 3580-3960 | 295-325 | 3705-4090 | 36.6-40.6 | 4.60-5.10 | ||||
| Y40 | 440-460 | 4400-4600 | 315-345 | 3960-4340 | 320-350 | 4020-4400 | 37.6-41.6 | 4.72-5.23 | FB9B | HF35/34 | ||
| Y41 | 450-470 | 4500-4700 | 245-275 | 3080-3460 | 255-285 | 3200-3580 | 38.0-42.0 | 4.77-5.28 | FB9N | |||
| Y41H | 450-470 | 4500-4700 | 315-345 | 3960-4340 | 385-415 | 4850-5220 | 38.5-42.5 | 4.84-5.34 | FB12H | |||
| Y42 | 460-480 | 4600-4800 | 315-335 | 3960-4210 | 355-385 | 4460-4850 | 40.0-44.0 | 5.03-5.53 | FB12B | |||
| Y42H | 460-480 | 4600-4800 | 325-345 | 4080-4340 | 400-440 | 5020-5530 | 40.0-44.0 | 5.03-5.53 | FB14H | |||
| Y43 | 465-485 | 4650-4850 | 330-350 | 4150-4400 | 350-390 | 4400-4900 | 40.5-45.5 | 5.09-5.72 | FB13B |
|
||
