Ferrite irregular magnets are a type of permanent magnet widely used in various industrial and consumer goods. They are made from a combination of iron oxide and other metal elements such as nickel, strontium, and cobalt.
The production of irregular ferrite magnets requires specialized manufacturing processes, including mixing raw materials to form a uniform mixture. Then press the mixture into the mold and heat it to a high temperature to form a solid material block.
Then, precision machining techniques such as grinding, milling, or turning are used to shape the solid block into the desired shape. Then, by placing the magnet in a strong electromagnetic field, the micro magnetic domains within the material are aligned, thereby magnetizing the magnet.
One of the main advantages of ferrite irregular magnets is their cost-effectiveness. Compared with other types of permanent magnets such as neodymium magnets, their production costs are relatively low. In addition, they have high resistance to demagnetization and corrosion, making them very suitable for use in harsh environments.
Ferrite irregular magnets are used in a wide range of industrial applications, including electric motors, speakers, and computer hard drives. They are also commonly used in consumer goods such as refrigerator magnets and toys.
In short, the production of irregular ferrite magnets is a complex process that requires professional knowledge and expertise. These magnets have many positive characteristics, making them a popular choice for various industries and consumer goods.
Yanhe Magtech® is familiar with information of magnet industry in China. We have long-term strategic cooperative relations with the other six factories. Two are for sintered NdFeB, two are for Hard Ferrite, and two are for AlNiCo and SmCo. Therefore, Yanhe Magtech® can provide accurate information and the first-class high-quality products with the most competitive price for our customers.
Yanhe Magtech® has passed the authentication of ISO 9001:2015, and has covered Product-liability insurance. We eliminate the customers’worries completely. With the reliable quality, our products are exported to Europe, the United States and Asia, etc.
Yanhe Magtech® aim: To provide more extensive information, products, technology design and service for customers. To make customers satisfied in the course of commercial activity.
Typical Magnetic Performance for Hard Ferrite magnet
Grade | Remanence | Coercive Force | Intrinsic Coercive | Max Energy | Density | ||||
Br | Hcb | Hcj | (BH)max | ||||||
mT | Gs | KA/m | Oe | KA/m | Oe | KJ/m3 | MGOe | g/cm3 | |
Y8T | 200-235 | ≧2000 | 125-160 | ≧1570 | 210-280 | ≧2610 | 6.5-9.5 | ≧0.8 | 4.8 |
Y22H | 310-360 | ≧3100 | 220-250 | ≧2770 | 280-320 | ≧3520 | 20.0-24.0 | ≧2.5 | 4.9 |
Y25 | 360-400 | ≧3600 | 135-170 | ≧1700 | 140-200 | ≧1760 | 22.5-28.0 | ≧2.8 | 4.9 |
Y26H-1 | 360-390 | ≧3600 | 200-250 | ≧2512 | 225-255 | ≧2830 | 23.0-28.0 | ≧2.9 | 4.9 |
Y26H-2 | 360-380 | ≧3600 | 263-288 | ≧3300 | 318-350 | ≧4000 | 24.0-28.0 | ≧3 | 4.9 |
Y27H | 350-380 | ≧3500 | 225-240 | ≧2830 | 235-260 | ≧2950 | 25.0-29.0 | ≧3.1 | 4.9 |
Y28 | 370-400 | ≧3700 | 175-210 | ≧2200 | 180-220 | ≧2260 | 26.0-30.0 | ≧3.3 | 4.9 |
Y28H-1 | 380-400 | ≧3800 | 240-260 | ≧3020 | 250-280 | ≧3140 | 27.0-30.0 | ≧3.4 | 4.9 |
Y28H-2 | 360-380 | ≧3600 | 271-295 | ≧3400 | 382-405 | ≧4800 | 26.0-30.0 | ≧3.3 | 4.9 |
Y30 | 370-400 | ≧3700 | 175-210 | ≧2200 | 180-220 | ≧2260 | 26.0-30.0 | ≧3.3 | 4.9 |
Y30BH | 380-390 | ≧3800 | 223-235 | ≧2800 | 231-245 | ≧2900 | 27.0-30.0 | ≧3.4 | 4.9 |
Y30H-1 | 380-400 | ≧3800 | 230-275 | ≧2890 | 235-290 | ≧2950 | 27.0-32.5 | ≧3.4 | 4.9 |
Y30H-2 | 395-415 | ≧3950 | 275-300 | ≧3460 | 310-335 | ≧3900 | 27.0-32.0 | ≧3.4 | 4.9 |
Y32 | 400-420 | ≧4000 | 160-190 | ≧2010 | 165-195 | ≧2070 | 30.0-33.5 | ≧3.8 | 4.9 |
Y32H-1 | 400-420 | ≧4000 | 190-230 | ≧2390 | 230-250 | ≧2890 | 31.0-35.0 | ≧3.9 | 4.9 |
Y32H-2 | 400-440 | ≧4000 | 224-240 | ≧2810 | 230-250 | ≧2890 | 31.0-34.0 | ≧3.9 | 4.9 |
Y33 | 410-430 | ≧4100 | 220-250 | ≧2760 | 225-255 | ≧2830 | 31.5-35.0 | ≧4 | 4.9 |
Y33H | 410-430 | ≧4100 | 250-270 | ≧3140 | 250-275 | ≧3140 | 31.5-35.0 | ≧4 | 4.9 |
Y34 | 420-440 | ≧4200 | 200-230 | ≧2510 | 205-235 | ≧2580 | 32.5-36.0 | ≧4.1 | 4.9 |
Y35 | 430-450 | ≧4300 | 215-239 | ≧2700 | 217-241 | ≧2730 | 33.1-33.2 | ≧4.2 | 4.9 |
Y36 | 440-450 | ≧4400 | 247-271 | ≧3100 | 250-374 | ≧3140 | 35.1-38.3 | ≧4.4 | 4.9 |
Y38 | 440-460 | ≧4400 | 285-305 | ≧3580 | 294-310 | ≧3690 | 36.6-40.6 | ≧4.6 | 4.9 |
Y40 | 450-460 | ≧4500 | 330-354 | ≧4150 | 340-360 | ≧4270 | 37.6-41.8 | ≧4.7 | 4.9 |
Physical property of Hard Ferrite magnets
Curie Temperature (°C) | 450 |
Maximum Operating Temperature (°C) | 250 |
Hardness (Hv) | 480-580 |
Density (g/cm3) | 4.8 - 4.9 |
Relative Recoil Permeability (μrec) | 1.05 - 1.20 |
Saturation Field Strength, kOe (KA/m) | 10 (800) |
Temperature Coefficient of Br (%/°C) | -0.2 |
Temperature Coefficient of iHc (%/°C) | 0.3 |
Tensile Strength (N/mm) | <100 |
Transverse Rupture Strength (N/mm) | 300 |
USA Standard - Permanent Ferrite / Ceramic magnet
Grade | Remanence | Coercive Force | Intrinsic Coercive | Max Energy | Density | Tw Max | Remark | ||||
Br | Hcb | Hcj | BHmax | ||||||||
KGs | mT | KOe | KA/m | KOe | KA/m | KJ/m3 | MGOe | g/cm3 | ℃ | ||
C1 | 2.3 | 230 | 1.86 | 150 | 3.5 | 258 | 8.36 | 1.05 | 4.8 | 250 | Isotropic |
C5 | 3.8 | 380 | 2.4 | 190 | 2.5 | 200 | 27.1 | 3.4 | 4.9 | 250 | |
C7 | 3.4 | 340 | 3.23 | 258 | 4.0 | 318 | 21.9 | 2.75 | 4.9 | 250 | |
C8(C8A) | 3.85 | 385 | 2.95 | 235 | 3.0 | 240 | 27.8 | 3.5 | 4.9 | 250 | Anisotropic |
C8B | 4.2 | 420 | 2.9 | 232 | 2.96 | 236 | 32.8 | 4.1 | 4.9 | 250 | |
C9 | 3.8 | 380 | 3.5 | 280 | 4.0 | 320 | 26.4 | 3.3 | 4.9 | 250 | |
C10 | 4.0 | 400 | 3.6 | 288 | 3.5 | 280 | 30.4 | 3.8 | 4.9 | 250 | |
C11 | 4.3 | 430 | 2.5 | 200 | 2.55 | 204 | 34.4 | 4.3 | 4.9 | 250 | |
The Standard of International Electronics Committee (IEC404-8-1)
Grade | Remanence | Coercive Force | Intrinsic Coercive | Max Energy | Density | ||||
Br | Hcb | Hcj | (BH)max | ||||||
KGs | mT | KOe | KA/m | KOe | KA/m | KJ/m3 | MGOe | g/cm3 | |
HF8/22 | 2.00-2.20 | 200-220 | 1.57-1.76 | 125-140 | 2.76-2.89 | 220-230 | 6.5-6.8 | 0.8-1.1 | 4.8 |
HF20/19 | 3.20-3.33 | 320-333 | 2.14-2.39 | 170-190 | 2.39-2.51 | 190-200 | 20.0-21.0 | 2.5-2.7 | 4.9 |
HF20/28 | 3.10-3.25 | 310-325 | 2.76-2.89 | 220-230 | 3.52-3.64 | 280-290 | 20.0-21.0 | 2.5-2.7 | 4.9 |
HF22/30 | 3.50-3.65 | 350-365 | 3.20-3.33 | 255-265 | 3.64-3.77 | 290-300 | 22.0-23.5 | 2.8-3.0 | 4.9 |
HF24/16 | 3.50-3.65 | 350-365 | 1.95-2.20 | 155-175 | 2.01-2.26 | 160-180 | 24.0-25.5 | 3.0-3.2 | 4.9 |
HF24/23 | 3.50-3.65 | 350-365 | 2.76-2.89 | 220-230 | 2.89-3.01 | 230-240 | 24.0-25.5 | 3.0-3.2 | 4.9 |
HF24/35 | 3.60-3.70 | 360-370 | 3.27-3.39 | 260-270 | 4.40-4.52 | 350-360 | 24.0-25.5 | 3.0-3.2 | 4.9 |
HF26/16 | 3.70-3.80 | 370-380 | 1.95-2.20 | 155-175 | 2.01-2.26 | 160-180 | 26.0-27.0 | 3.2-3.4 | 4.9 |
HF26/18 | 3.70-3.80 | 370-380 | 2.20-2.39 | 175-190 | 2.26-2.39 | 180-190 | 26.0-27.0 | 3.3-3.4 | 4.9 |
HF26/24 | 3.70-3.80 | 370-380 | 2.89-3.01 | 230-240 | 3.01-3.14 | 240-250 | 26.0-27.0 | 3.3-3.4 | 4.9 |
HF26/26 | 3.70-3.80 | 370-380 | 2.89-3.01 | 230-240 | 3.27-3.39 | 260-270 | 26.0-27.0 | 3.3-3.4 | 4.9 |
HF26/30 | 3.85-3.95 | 385-395 | 3.27-3.39 | 260-270 | 3.77-3.89 | 300-310 | 26.0-27.0 | 3.3-3.4 | 4.9 |
HF28/26 | 3.85-3.95 | 385-395 | 3.14-3.33 | 250-265 | 3.27-3.45 | 260-275 | 28.0-30.0 | 3.5-3.8 | 4.9 |
HF28/28 | 3.85-3.95 | 385-395 | 3.27-3.39 | 260-270 | 3.50-3.60 | 280-290 | 28.0-30.0 | 3.5-3.8 | 4.9 |
HF30/26 | 3.95-4.05 | 395-405 | 3.14-3.33 | 250-260 | 3.27-3.39 | 260-270 | 30.0-31.5 | 3.8-3.9 | 4.9 |
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