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Sintered Ferrite Magnet (Ferrite Permanent Magnet, Ceramic Magnet)
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ProductName:
Sintered Ferrite Magnet (Ferrite Permanent Magnet, Ceramic Magnet)
ProductModel:
Ferrite Magnet
ProductManufacturer:
Shanghai TinDun Industry Co.,Ltd
ProductSimpleIntroduce:
Ferrite magnet (Ferrite Permanent Magnet, Ceramic Magnet) is manufactured by powder metallurgy/ceramic methods with SrO or BaO. They have isotropy and anisotropy parts.
Sintered Ferrite Magnet (Ferrite Permanent Magnet, Ceramic Magnet)detail
Sintered Ferrite magnet (Ferrite Permanent Magnet, Ceramic Magnet)
Ferrite Magnet (Ferrite Permanent Magnet, Ceramic Magnet) is manufactured by powder metallurgy/ceramic methods with SrO or BaO. They have isotropy and anisotropy parts. This permanent magnet has good demagnetization and rust resistant ability, and can work at 250℃. Ferrite can be cut and machined into arc, block, ring, cake and cylinder shape. It is mainly used in motors, speakers, medical equipments, magnetic lift and separator.
Magnetic Properties of Sintered Hard Ferrite
Chinese standard
| Grade | Remanence | Coercivity Force | Intrinsic Coercive Force | Max.Energy Product |
| Br | Hcb | Hcj | （ BH ） max |
| mT | kGs | 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 | 2.20-2.64 | 180-220 | 2.26-2.77 | 26.0-30.0 | 3.3-3.8 |
| Y30BH | 380-390 | 3.8-3.90 | 223-235 | 2.80-2.95 | 231-245 | 2.90-3.08 | 27.0-30.0 | 3.4-3.7 |
| Y30-1 | 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 |
| Y30H-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 | 2.77-3.14 | 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
| Grade | Remanence | Coercivity Force | Intrinsic Coercive Force | Max.Energy Product |
| Br | Hcb | Hcj | （ BH ） max |
| mT | kGs | kA/m | kOe | kA/m | 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 | 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 | 288 | 3.617 | 280 | 3.51 | 30.4 | 3.82 |
| C11 | 430 | 4.3 | 200 | 2.512 | 204 | 2.56 | 34.4 | 4.32 |
Physical Properties of Hard Ferrite Magnet
| Parameters | Mark | Unit | Values | Remark |
| Recoil Permeability | rec | Gs/Oe | 1.05-1.3 | |
| Curie Temperature | Tc | ℃ | ≥ 450 | |
| Temp. Coefficient of Magnetic Induction | A(Br) | ℃ -1 | -0.2% | 0-100 ℃ |
| Temp. Coefficient of Inturensic Coerrice | A(Hcj) | ℃ -1 | -0.2-0.5% | 0-100 ℃ |
| Density | D | G/cm3 | 4.6-5.0 | |
| Specific Resistance | | Ω .cm | ≥ 10 6 | |
| Coefficient of Thermal Expansion | A | ℃ -1 | 7-15X10 -6 | |
| Hardness | HV | -- | 480-580 | |