

Ferrite Magnets

Ferrite is the most widely used permanent magnet material. It is manufactured by powder metallurgy. It is mainly divided into barium material (Ba) and strontium material (Sr), and is divided into two types: anisotropic and isotropic. , Is a permanent magnet material that is not easy to demagnetize and not easy to corrode. The maximum working temperature can reach 250 degrees Celsius. It is hard and brittle. It can be cut and processed by tools such as diamond sand, and it can be formed at one time with a mold that is just processed by alloy. Such products are widely used in permanent magnet motors (Motor) and speakers (Speaker) and other fields.
Features
●Is made by powder metallurgy
●Harder and brittle
●Not easy to demagnetize
●Good corrosion resistance
●Low price and rich resources
●Good temperature stability
●The most widely used perma-
-nent magnet
磁性能
Grade | Isotropic/Heterotropic | Remanence | Coercivity | Intrinsic coercivity | Maximum magnetic energy product | ||||
Br | Br | bHc | bHc | iHc | iHc | (BH) | (BH) | ||
(mT) | (Gs) | (kA/m) | (Oe) | (kA/m) | (Oe) |
max (KJ/m) |
max (MGOe) |
||
Y10 | Isotropic | 200-235 | 2,000-2,350 | 125-160 | 1,570-2,010 | 210-280 | 2,640-3,520 | 6.5-9.5 | 0.8-1.2 |
Y25 | Anisotropic | 360-400 | 3,600-4,000 | 135-170 | 1,700-2,140 | 140-200 | 1,760-2,510 | 22.5-28.0 | 2.8-3.5 |
Y30 | Anisotropic | 370-400 | 3,700-4,000 | 175-210 | 2,200-2,640 | 180-220 | 2,260-2,770 | 26.0-30.0 | 3.3-3.8 |
Y30BH | Anisotropic | 380-400 | 3,800-4,000 | 230-275 | 2,890-3,460 | 235-290 | 2,950-3,650 | 27.0-32.5 | 3.4-4.1 |
Y33 | Anisotropic | 410-430 | 4,100-4,300 | 220-250 | 2,770-3,140 | 225-255 | 2,830-3,210 | 31.5-35.0 | 4.0-4.4 |
Y35 | Anisotropic | 400-420 | 4,000-4,200 | 160-190 | 2,010-2,380 | 165-195 | 2,070-2,450 | 30.0-33.5 | 3.8-4.2 |
Physical properties
Project | Unit | Parameter range |
Curie temperature | ℃ | 450 |
Maximum working temperature | ℃ | 250 |
Hardness | Hv | 480-580 |
Density | g/cm | 4.8-4.9 |
Recovery permeability | rec | 1.05-1.20 |
Saturation magnetization | kOe | 10 |
kA/m | 800 | |
Remanence temperature coefficient | %/ | -0.2 |
Temperature coefficient of intrinsic coercivity | %/ | 0.3 |
Stretching strength | N/mm | <100 |
Transverse strength | N/mm | 300 |
Product curve


Production Process
Application field
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Honor
Tianjin North Magnet Co., Ltd
津ICP备17001876号
