Grades of ceramic magnets

There are currently 27 grades of permanent ceramic magnets commercially available all of which have different ferromagnetic properties. Ceramic magnets, also known as ceramic magnets, are commonly used in electric motors and generators due to their good resistance to demagnetisation – they have high intrinsic coercivity!

Did you know?
There are 27 different grades of permanent ceramic magnets commercially available.

The chemical compound of ceramic magnets is SrO-6 (Fe2O3), a combination of strontium carbonate and iron oxide; some grades also include other chemicals such as cobalt and lanthanum to improve magnetic performance

Previously, grades of ceramic magnets where labelled with the letter ‘C’ then a number, for example C1, C2, C3. This system has now been superseded by a similar one with all grades beginning with the letter ‘Y’ followed by a number or a series of numbers and letters. The numbers following the letter define the maximum energy product for the magnet, any letters following the numbers are there to differentiate further between different grades with different characteristics.

The most popular grade of permanent ceramic magnets are Y30, you can buy these right now in block, disc, ring, hook, channel or pot form from the first4magnets.com shop today.

Material


Remanence (Br)

mT
kG

Coercive Force (Hc)

kA/m
kOe

Intrinsic Coercive Force (Hci)

kA/m
kOe

Max Energy Product (BH)max

kJ/m^3 
MGOe

Y8T200-235
2.0-2.35

125-160
1.57-2.01

210-280
2.64-3.52

6.5-9.5
0.8-1.2

Y10T200-235
2.0-2.35 
128-160
1.61-2.01
210-280
2.64-3.52
6.4-9.6
0.8-1.2
Y20320-380
3.2-3.8
135-190
1.70-2.39
140-195
1.76-2.45
18.0-22.0
2.3-2.8
Y22H310-360
3.1-3.6
220-250
2.76-3.14
280-320
3.52-4.02
20.0-24.0
2.5-3.0
Y23320-370
3.2-3.7
170-190
2.14-2.39
190-230
2.39-2.89
20.0-25.5
2.5-3.2
Y25360-400
3.6-4.0
135-170
1.70-2.14
140-200
1.76-2.51
22.5-28.0
2.8-3.5
Y26H360-390
3.6-3.9
220-250
2.76-3.14
225-255
2.83-3.20
23.0-28.0
2.9-3.5
Y26H-1360-390
3.6-3.9
200-250
2.51-3.14
225-255
2.83-3.20
23.0-28.0
2.9-3.5
Y26H-2360-380
3.6-3.8
263-288
3.30-3.62
318-350
4.00-4.40
24.0-28.0
3.0-3.5
Y27H370-400
3.7-4.0
205-250
2.58-3.14
210-255
2.64-3.20
25.0-29.0
3.1-3.6
Y28370-400
3.7-4.0
175-210
2.20-2.64
180-220
2.26-2.76
26.0-30.0
3.3-3.8
Y28H-1380-400
3.8-4.0
240-260
v3.02-3.27
250-280
3.14-3.52
27.0-30.0
3.4-3.8
Y28H-2360-380
3.3-3.8
271-295
3.41-3.71
382-405
4.80-5.09
26.0-30.0
3.3-3.8
Y30370-400
3.7-4.0
175-210
2.20-2.64
180-220
2.26-2.76
26.0-30.0
3.3-3.8
Y30BH380-390
3.8-3.9
223-235
2.80-2.95
231-245
2.90-3.08
27.0-30.0
3.4-3.8
Y30H-1380-400
3.8-4.0
230-275
2.89-3.46
235-290
2.95-3.64
27.0-32.0
3.4-4.0
Y30H-2395-415
3.95-4.15
275-300
3.46-3.77
310-335
3.90-4.21

27.0-32.5
3.4-4.1

Y32400-420
4.0-4.2
160-190
2.01-2.39
165-195
2.07-2.45
30.0-33.5
3.8-4.2
Y32H-1400-420
4.0-4.2

190-230
2.39-2.89

230-250
2.89-3.14
31.5-35.0
4.0-4.4
Y32H-2400-440
4.0-4.4
224-240
2.81-3.02
230-250
2.89-3.14
31.0-34.0
3.9-4.3
Y33410-430
4.1-4.3
220-250
2.76-3.14
225-255
2.83-3.20
31.5-35.0
4.0-4.4
Y33H410-430
4.1-4.3
250-270
3.14-3.39
250-275
3.14-3.46
31.5-35.0
4.0-4.4
Y34420-440
4.2-4.4
200-230
2.51-2.89
205-235
2.58-2.95
32.5-36.0
4.1-4.5
Y35430-450
4.3-4.5
215-239
v2.70-3.00
217-241
2.73-3.03
33.1-38.2
4.2-4.8
Y36430-450
4.3-4.5
247-271
3.10-3.41
250-274
3.14-3.44
35.1-38.3
4.4-4.8
Y38440-460
4.4-4.6
285-305
3.58-3.83
294-310
3.69-3.90
36.6-40.6
4.6-5.1
Y40440-460
4.4-4.6
330-354
4.15-4.45
340-360
4.27-4.52
37.5-41.8
4.7-5.3
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