Propiedades magnéticas del imán de ferrita
| Grado (CN) | Br(kg) | Hcb(KOe) | Hcj(KOe) | (BH)máx. (MGOe) |
| Y10T | 2-2.35 | 1,57-2,0 | 2.64-3.52 | 0,8-1,2 |
| Año 20 | 3.2-3.8 | 1.7-2.38 | 1,76-2,45 | 2.3-2.8 |
| Y22H | 3.1-3.6 | 2.77-3.14 | 3.52-4.02 | 2.5-3.0 |
| Año 23 | 3.2-3.7 | 2.14-2.38 | 2,39-2,89 | 2.5-3.2 |
| Y25 | 3.6-4.0 | 1.7-2.14 | 1,76-2,51 | 2.8-3.5 |
| Y26H | 3.6-3.9 | 2.77-3.14 | 2.83-3.21 | 2.9-3.5 |
| Y27H | 3.7-4.0 | 2.58-3.14 | 2.64-3.21 | 3.1-3.7 |
| Año 30 | 3.7-4.0 | 2.2-2.64 | 2.26-2.77 | 3.3-3.8 |
| Y30BH | 3.8-3.9 | 2.8-2.95 | 2,90-3,08 | 3.4-3.7 |
| Y30-1 | 3.8-4.0 | 2,89-3,46 | 2,95-3,65 | 3.4-4.0 |
| Y30-2 | 3,95-4,15 | 3.46-3.77 | 3,90-4,21 | 3.5-4.0 |
| Y32 | 4.0-4.2 | 2.01-2.38 | 2.07-2.45 | 3.8-4.2 |
| Y33 | 4.1-4.3 | 2.77-3.14 | 2.83-3.21 | 4.0-4.4 |
| Y35 | 4.0-4.1 | 2.2-2.45 | 2.26-2.51 | 3.8-4.0 |
| Y36 | 4.3-4.5 | 3.10-3.40 | 3.14-3.44 | 4.4-4.8 |
| Y38 | 4.4-4.6 | 3.58-3.83 | 3.69-3.89 | 4.6-5.1 |
| Y40 | 4.4-4.6 | 4.16-4.45 | 4.27-4.52 | 4.7-5.3 |