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Ningbo VastSky Magnetic&Plastic Tech Co.,Ltd
[China]
Address:
Timeshero Building ,Huitou Lane 2, Haishu District, Ningbo Ningbo Zhejiang 315000 China
Phone:
86-574-87129631
Contact name:
sammy , Manager
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Ningbo VastSky Magnetic&Plastic Tech Co.,Ltd
 
Ferrite Magnets

Ferrite:It is metal oxide made from all kinds of ferric oxide, usually including Mn, Zn, Ba, Sr, etc. 

 

Characteristic:

1.      processed by powder metallurgy method, low remanence and reversibility.

2.      high coercive force, hard to be demagnetized, suitable for dynamic application.

3.      hard and crisp ,usually cut by diamond tools.

4.      main composed of oxide, not easy to be eroded.

5.      usually work at －40 °C to +200 °C

6.      both isotropic and anisotropic magnets are available. The magnetic properties of isotropic ferrite are low. Since they have nearly the same magnetic properties in all directions, so isotropic ferrite magnets can be magnetized in many different directions or in multi-poles. Anisotropic ferrite magnets have better magnetic properties compare with isotropic ferrite magnets. However this type of magnets can only be magnetized along a preferred direction.

 

Application:

1.widely used in permanent magnetic electric machinery, speakers,etc.

2.also used in all kinds parts of apparatus like micro electric machinery, electro-acoustic device, copying machines, medical equipment,etc.

 

Ferrite Mangets->Products Attribute

 

Mostly Used 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

Material Br HcB HcJ (BH)max
mT KG KA/m KOe KA/m KOe Kj/m? 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 360~400 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
Y20-2 395~415 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

Material Br HcB HcJ (BH)max
mT KG KA/m KOe KA/e KOe kj/m? 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

Europe standard
OX100=Y10T=C1       OX300=Y30=C5     OX330=Y30BH

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/m? 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
 
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