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Products List -- Ferrite Magnet
HARD FERRITE PERMANENT MAGNETS
Magnetic materials are fundamental functional materials of electronic industry. As important parts of sintered ferrite magnethard ferrite magnetmagnetic materials, hard ferrite materials play a heavyrole in electronic industry, electronic information industry, car industry, motorcycle industry etc. meanwhile, they are also widely used in medical treatment, mining and metallurgy, industrial automation, oil energy industry and civil industry. hard ferrite magnet, sintered ferrite magnet

Our main products includes :hard ferrite arc or segment, ring magnets, rectangular magnets, ferrite power etc. Which have the following advantages: high coercive force, high electric resistance, long-time stability, and economical price. Meanwhile, we can manufacture new tools according to the customers` demand. hard ferrite magnet, sintered ferrite magnet
 
Mostly Used national standard - SJ285-77 permanent ferrite magnet standard

Grade

Value(min/typical in our factory

Br

Hcb(BHC)

Hcj(IHC)

(BH)max

MT

KG

KA/m

Koe

KA/m

KOe

Kj/m3

MGOe

Y10T(=C1) 200/218 2.00/2.18 125/145 1.57/1.82 210/250 2.64/3.14 6.5/8.0 0.8/1.0
Y25 360/370 3.60/3.70 135/150 1.70/1.88 140/170 1.76/2.14 22.5/25.3 2.8/3.2
Y30(=C5) 380/385 3.80/3.85 191/210 2.40/2.64 199/220 2.50/2.51 26.0/28 3.4/3.7
Y30BH 380/390 3.80/3.90 223/235 2.80/2.95 231/245 2.90/3.08 27.0/30.0 3.4/3.7
Y33 410/420 4.10/4.20 220/235 2.77/2.95 225/240 2.83/3.01 31.5/33.0 4.0/4.2
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
C8(=C8A) 385/390 3.85/3.90 235/255 2.95/3.20 242/265 3.05/3.33 27.8/30.0 3.5/3.7
C10 400/410 4.00/4.10 288/300 3.62/3.77 280/287 3.51/3.60 30.4/31.9 3.8/4.0
 
Chinese standard -sj/T10410 2000 permanent ferrite magnet standard

Material Br HcB HcJ (BH)max
mT KG KA/m Oe KA/m Oe Kj/m³ MGOe

Y8T

200~235 2000 125~160 1570 210~280 2610 6.5~9.5 0.8

Y22H

310~360 3100 220~250 2770 280~320 3520 20.0~24.0 2.5

Y25

360~400 3600 135~170 1700 140~200 1760 22.5~28.0 2.8

Y26H-1

360~390 3600 220~250 2512 225~255 2830 23.0~28.0 2.9

Y26H-2

360-380 3600 263-288 3300 318-350 4000 24.0-28.0 3.0

Y27H

370~400 3500 225-240 2830 235-260 2950 25.0~29.0 3.1

Y28

370-400 3700 175-210 2200 180-220 2260 26.0-30.0 3.3

Y28H-1

380-400 3800 240-260 3020 250-280 3140 27.0-30.0 3.1

Y28H-2

360-380 3600 271-295 3400 382-405 1800 26.0-30.0 3.3

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

Y30H-1

380~400 3800 230-275 2890 235-290 2950 27.0~32.5 3.4

Y30H-2

395-415 3950 275-300 3460 310-335 3900 27.0~32.0 3.4

Y32

400~420 4000 160~190 2010 165~195 2070 30.0~33.5 3.8

Y32H-1

400-420 4000 190-230 2390 230-250 2890 34.5-35.0 4.0

Y32H-2

400-440 4000 224-240 2810 230-250 2890 31.0-34.0 3.9

Y33

410~430 4100 220~250 2760 225~255 2830 31.5~35.0 4.0

Y33H

410-430 4100 250-270 3140 250-275 3140 31.5-35.0 4.0

Y34

420-440 4200 200-230 2510 205-235 2580 32.5-36.0 4.1

Y35

430-450 4300 215-239 2700 217-242 2730 33.1-33.2 4.2

Y36

440-450 4400 247-271 3100 250-374 4400 35.1-38.3 4.4

Y38

440-460 4400 285-305 3580 294-310 3690 36.6-40.6 4.6

Y40

450-460 4500 330-354 4150 340-360 4270 37.6-41.8 4.7
 
Demagetization Curves of Permanent Ferrite Magnet
 
USA standard - permanent ferrite magnet industry standard of USA

Material Br HcB HcJ (BH)max
mT KG KA/m KOe KA/e 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 4.00 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 4.0 288 3.617 280 3.51 30.4 3.82

C11

430 4.3 200 2.512 204 2.56 34.4 4.32
 
Japan TDK standard

Grade Composition Br Hcb Hcj BH max
        mT kG kA/m kOe kA/m kOe KJ/m3 MGOe
FB40 SrO6Fe2O3 410+/-10 4.1+/-10 234.8+/-11.9 2.95+/-0.15 238.7+/-15.9 3.0+/-0.2 31.4+/-1.6 3.95+/-0.2
FB3N SrO6Fe2O3 395+/-15 3.95+/-15 234.8+/-11.9 2.95+/-0.15 238.7+/-15.9 3.0+/-0.2 28.7+/-2.4 3.6+/-0.3
FB3G SrO6Fe2O3 375+/-15 3.75+/-15 254.6+/-15.9 3.2+/-0.2 270.6+/-19.9 3.4+/-0.25 25.9+/-2.4 3.25+/-0.3
FB3X SrO6Fe2O3 375+/-15 3.75+/-15 234.8+/-11.9 2.95+/-0.15 238.7+/-15.9 3.0+/-0.2 25.9+/-2.4 3.25+/-0.3
FB1A SrO6Fe2O3 220+/-15 2.20+/-15 159.2+/-15.9 2.0+/-0.2 258.6+/-19.9 3.25+/-0.25 8.9+/-1.6 1.1+/-0.2
FB5H SrO6Fe2O3 405+/-15 4.05+/-15 298.4+/-11.9 3.75+/-0.15 322.3+/-11.9 4.05+/-0.15 31.1+/-1.6 3.9+/-0.2
FB4X SrO6Fe2O3 420+/-10 4.20+/-10 234.8+/-11.9 2.95+/-0.15 238.7+/-15.9 3.0+/-0.2 33.4+/-1.6 4.2+/-0.2
FB4B SrO6Fe2O3 400+/-10 4.00+/-10 254.6+/-11.9 3.2+/-0.2 262.6+/-19.9 3.3+/-0.25 30.3+/-1.6 3.8+/-0.2
FB4A SrO/BaO6Fe2O3 410+/-10 4.10+/-10 175.1+/-15.9 2.2+/-0.2 176.7+/-15.9 2.22+/-0.2 31.8+/-1.6 4.0+/-0.2
FBGN SrO6Fe2O3 440+/-10 4.40+/-10 258.6+/-11.9 3.25+/-0.15 262.6+/-11.9 3.3+/-0.15 36.7+/-1.6 4.6+/-0.2
FB6B SrO6Fe2O3 420+/-10 4.20+/-10 302.4+/-11.9 3.8+/-0.15 318.3+/-11.9 4.0+/-0.15 33.4+/-1.6 4.2+/-0.2
FB6H SrO6Fe2O3 400+/-10 4.00+/-10 302.4+/-11.9 3.8+/-0.15 358.1+/-11.9 4.5+/-0.15 30.3+/-1.6 3.8+/-0.2
FB6E SrO6Fe2O3 380+/-10 3.80+/-10 290.5+/-11.9 3.65+/-0.15 393.9+/-11.9 4.95+/-0.15 27.5+/-1.6 3.45+/-0.2
FB5N SrO6Fe2O3 440+/-10 4.40+/-10 256.8+/-11.9 2.85+/-0.15 2259.2+/-11.9 2.88+/-0.15 36.7+/-1.6 4.6+/-0.2
FB5B SrO6Fe2O3 420+/-10 4.20+/-10 262.6+/-11.9 3.3+/-0.15 266.6+/-11.9 3.35+/-0.15 33.4+/-1.6 4.2+/-0.2
 
The standard from International Electronics Committee(IEC404-8-1)

Grade Allowed Value (min/typical)
Br Hcb(BHC) Hcj(IHC) (BH)max
MT KG KA/m KOe KA/m KOe Kj/m³ MGOe
HF8/22 200/220 2.00/2.20 125/140 1.57/1.76 220/230 2.76/2.89 6.5/6.8 0.8/1.1
HF20/19 320/333 3.20/3.33 170/190 2.14/2.39 190/200 2.39/2.51 20.0/21.0 2.5/2.7
HF20/28 310/325 3.10/3.25 220/230 2.76/2.89 280/290 3.52/3.64 20.0/21.0 2.5/2.7
HF22/30 350/365 3.50/3.65 255/265 3.20/3.33 290/300 3.64/3.77 22.0/23.5 2.8/3.0
HF24/16 350/365 3.50/3.65 155/175 1.95/2.20 160/180 2.01/2.26 24.0/25.5 3.0/3.2
HF24/23 350/365 3.50/3.65 220/230 2.76/2.89 230/240 2.89/3.01 24.0/25.5 3.0/3.2
HF24/35 360/370 3.60/3.70 260/270 3.27/3.39 350/360 4.40/4.52 24.0/25.5 3.0/3.2
HF26/16 370/380 3.70/3.80 155/175 1.95/2.20 160/180 2.01/2.26 26.0/27.0 3.2/3.4
HF26/18 370/380 3.70/3.80 175/190 2.20/2.39 180/190 2.26/2.39 26.0/27.0 3.3/3.4
HF26/24 370/380 3.70/3.80 230/240 2.89/3.01 240/250 3.01/3.14 26.0/27.0 3.3/3.4
HF26/26 370/380 3.70/3.80 230/240 2.89/3.01 260/270 3.27/3.39 26.0/27.0 3.3/3.4
HF26/30 385/395 3.85/3.95 260/270 3.27/3.39 300/310 3.77/3.89 26.0/27.0 3.3/3.4
HF28/26 385/395 3.85/3.95 250/265 3.14/3.33 260/275 3.27/3.45 28.0/30.0 3.5/3.8
HF28/28 385/395 3.85/3.95 260/270 3.27/3.39 280/290 3.50/3.60 28.0/30.0 3.5/3.8
HF30/26 395/405 3.95/4.05 250/260 3.14/3.33 260/270 3.27/3.39 30.0/31.5 3.8/3.9
HF32/17 410/420 4.10/4.20 160/180 2.01/2.26 165/175 2.07/2.20 32.0/33.0 4.0/4.1
HF32/22 410/420 4.10/4.20 215/225 2.70/2.83 220/230 2.76/2.89 32.0/33.0 4.0/4.1
HF32/25 410/420 4.10/4.20 240/250 3.01/3.14 250/260 3.14/3.27 32.0/33.0 4.0/4.1
 
Physical property of hard ferrite mangets

Parameters Mark Unit Value
Recoil Permeability Urce - 1.05-1.3
Curie temperture Tc 0C 460
The temperature of Br α Br

0C-1 -0.2%
The temperature of Hcj α Hcj

0C-1 0.2-0.5%
Density D g/cm3 4.5-5.1
Resistivity P Ω.cm ≥104
The coefficient of linear expansion α R

0C-1 7-15x10-6
Hardness HV - 480-580
 
Inspection standard for permanent magnet
Purchasing Guide
Permanent magnet supply direction
Surface protection and surface coating for the permanent magnet
Quality warranty
Safety principle for manual operation of permanent magnet
 

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