Ferrite Magnets

GTEK Ferrite Magnets

What is Ferrite?

Ferrite Magnets aka Ceramic Magnets, which is the small black magnet we usually see. Ferrite magnets are mainly formed of Fe2O3 (iron oxide) BaCO3 (barium carbonate) or SrCO3 (strontium carbonate) metal powder. There are two types of ferrite magnets: Isotropic Magnets and Anisotropic Magnets. The anisotropic magnets are also divided into dry and wet type.

After magnetizing, the intensity of the residual magnetic field is very high, and can maintain the residual magnetic field for a long time.

Ferrite Magnets are usually used as permanent magnet material for audio equipment. For example: speaker magnet.

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    Features of Ceramic Magnets

    • It has the advantages of good anti-demagnetization and low cost.
    • It is produced by powder metallurgy method, with low remanence and low return magnetic permeability. It has large coercive force.
    • The material is hard and brittle.
    • The main raw material is oxide, so it is not easy to corrode. Working temperature: -40 ℃ to + 200 ℃.
    • Isotropic sintered ferrite permanent magnetic materials have weak magnetic properties, but can be magnetized in different directions;
    • Anisotropic sintered ferrite permanent magnetic materials have strong magnetic properties, but can only be magnetized in a predetermined direction.
    ceramic-magnets

    Shapes

    Ceramic magnets are usually made into blocks, discs, rings and arcs. GTEK offers both ordinary shapes and custom shapes of magnets. To facilitate a quick quotation, it's advisable to provide a drawing or sketch along with your inquiry.

    Block Ferrite Magnets - GTEKmagnet

    Block Ferrite Magnets

    Ferrite Ring Magnets - GTEKmagnet

    Ring Ferrite Magnets

    Arc Ferrite Magnets - GTEKmagnet

    Arc Ferrite Magnets

    Disc Ferrite Magnets - GTEKmagnet

    Disc Ferrite Magnets

    Crafting custom ferrite magnets involves mold manufacturing. We maintain a collection of pre-existing molds for standard shapes. Should you require unique configurations, we kindly request prior notification, as mold production takes a period.

    Customized Ferrite Magnets - GTEKmagnet

    Grades of Ceramic Magnets

    Magnetic Properties of Cast Ferrite Magnets

    Grade Remanence Br Coercive Force bHC Intrinsic Coercivity iHC Max. Energy Product (BH)max Density Max. working temp. Temp. coefficient of iHC
    KGS mT KOe KA/m KOe KA/m MGOe KJ/m3 g/cm3 %/℃ %/℃
    China Standard Y10T 2.0-2.35 200-235 1.57-2.01 125-160 2.64-3.51 210-280 0.80-1.20 6.5-9.5 4.5-4.7 200 -0.18 0.2-0.4 450
    Y10T-1 2.20-2.40 220-240 1.70-2.20 135-175 3.49-4.02 278-320 1.06-1.25 8.5-10.0 4.5-4.7 200 -0.18 0.2-0.4 450
    Y25 3.60-4.00 360-400 1.70-2.14 135-170 1.76-2.51 140-200 2.8-3.5 22.5-28.0 4.7-4.9 200 -0.18 0.2-0.4 450
    Y26H 3.60-3.80 360-380 3.30-3.60 263-288 3.99-4.40 318-350 3.0-3.5 24.8-28.0 4.7-4.9 200 -0.18 0.2-0.4 450
    Y28 3.70-4.00 370-400 2.20-2.64 175-210 2.26-2.76 180-220 3.3-3.8 26.0-30.0 4.7-4.9 200 -0.18 0.2-0.4 450
    Y28H-1 3.80-4.00 380-400 3.01-3.27 250-280 3.14-3.52 250-280 3.4-3.8 27.0-30.0 4.7-4.9 200 -0.18 0.2-0.4 450
    Y28H-2 3.60-3.80 360-380 3.40-3.70 382-405 4.30-4.80 350-380 3.3-3.8 26.0-30.0 4.7-4.9 200 -0.18 0.2-0.4 450
    Y30 3.80-4.00 380-400 2.89-3.46 230-275 2.95-3.64 235-290 3.4-4.1 27-32.5 4.7-4.9 200 -0.18 0.2-0.4 450
    Y30BH 3.95-4.15 395-415 3.45-3.77 275-300 3.89-4.20 310-335 3.4-4.0 27.0-32.0 4.7-4.9 200 -0.18 0.2-0.4 450
    Y32 4.00-4.20 400-420 2.01-2.39 160-190 2.07-2.45 165-195 3.8-4.2 30.0-33.5 4.7-4.9 200 -0.18 0.2-0.4 450
    Y32H-1 4.00-4.20 400-420 2.39-2.89 190-230 2.89-3.14 230-250 3.8-4.2 31.5-35.0 4.7-4.9 200 -0.18 0.2-0.4 450
    Y32H-2 4.00-4.20 400-420 2.81-3.02 224-240 2.89-3.14 230-250 3.8-4.2 31.0-34.0 4.7-4.9 200 -0.18 0.2-0.4 450
    Y32H-3 4.00-4.10 400-410 3.02-3.27 240-260 2.27-3.52 260-280 3.8-4.2 32.0-33.5 4.7-4.9 200 -0.18 0.2-0.4 450
    Y33 4.10-4.30 410-430 2.76-3.14 220-250 2.83-3.20 225-255 3.9-4.4 31.5-35.0 4.7-4.9 200 -0.18 0.2-0.4 450
    Y33H 4.10-4.30 410-430 3.14-3.39 250-270 3.14-3.46 250-275 3.9-4.4 31.5-35.0 4.7-4.9 200 -0.18 0.2-0.4 450
    Y34 4.20-4.40 420-440 2.51-2.89 200-230 2.58-2.95 205-235 4.1-4.5 32.5-36.0 4.7-4.9 200 -0.18 0.2-0.4 450
    Y35 4.30-4.50 430-450 2.70-3.00 210-239 2.73-3.03 217-241 4.1-4.8 33.1-8.3 4.7-4.9 200 -0.18 0.2-0.4 450
    USA Standard C1 2.3 230 1.86 148 3.24 258 1.05 8.36 4.5-4.7 200 -0.18 0.2-0.4 450
    C5 3.8 380 2.4 191 2.5 199 3.4 27 4.7-4.9 200 -0.18 0.2-0.4 450
    C7 3.4 340 3.23 258 4 318 2.75 21.9 4.7-4.9 200 -0.18 0.2-0.4 450
    C8(C8A) 3.85 385 2.95 235 3.05 242 3.5 27.8 4.7-4.9 200 -0.18 0.2-0.4 450
    C8B 4.1 410 2.9 231 2.95 235 3.6 28.7 4.7-4.9 200 -0.18 0.2-0.4 450
    C8C 3.85 430 2.5 199 2.55 203 4.3 34.2 4.7-4.9 200 -0.18 0.2-0.4 450
    C9 3.8 380 3.51 280 4.01 320 4.01 26.4 4.7-4.9 200 -0.18 0.2-0.4 450
    C10 4 400 3.51 280 3.61 288 3.51 30.4 4.7-4.9 200 -0.18 0.2-0.4 450
    C11 4.3 430 2.51 200 2.56 204 2.56 34.4 4.7-4.9 200 -0.18 0.2-0.4 450
    C12 4 400 3.64 290 3.64 318 4.02 32 4.7-4.9 200 -0.18 0.2-0.4 450
    Europe Standard HF8/22 2.0/2.2 200/220 1.57/1.76 125/140 2.76/2.89 220/230 0.8/1.1 6.5/6.8 4.5-4.7 200 -0.18 0.2-0.4 450
    HF20/19 3.2/3.33 320/333 2.14/2.39 170/190 2.39/2.51 190/200 2.5/2.7 20.0/21.0 4.5-4.7 200 -0.18 0.2-0.4 450
    HF20/28 3.1/3.25 310/325 2.76/2.89 220/230 3.52/3.64 280/290 2.5/2.7 20.0/21.0 4.5-4.7 200 -0.18 0.2-0.4 450
    HF22/30 3.5/3.65 350/365 3.2/3.33 255/265 3.64/3.77 290/300 2.8/3.0 22.0/23.5 4.5-4.7 200 -0.18 0.2-0.4 450
    HF24/16 3.5/3.65 350/365 1.95/2.20 155/175 2.01/2.26 160/180 3.0/3.2 24.0/25.5 4.7-4.9 200 -0.18 0.2-0.4 450
    HF24/23 3.5/3.65 350/365 2.76/2.89 220/230 2.89/3.01 230/240 3.0/3.2 24.0/25.5 4.7-4.9 200 -0.18 0.2-0.4 450
    HF24/35 3.6/3.7 360/370 3.27/3.39 260/270 4.40/4.52 350/360 3.0/3.2 24.0/25.5 4.7-4.9 200 -0.18 0.2-0.4 450
    HF26/16 3.7/3.8 370/380 1.95/2.20 155/175 2.01/2.26 160/180 3.2/3.4 26.0/27.0 4.7-4.9 200 -0.18 0.2-0.4 450
    HF26/18 3.7/3.8 370/380 2.2/2.39 175/190 2.26/2.39 180/190 3.3/3.4 26.0/27.0 4.7-4.9 200 -0.18 0.2-0.4 450
    HF26/24 3.7/3.8 370/380 2.89/3.01 230/240 3.01/3.14 240/250 3.3/3.4 26.0/27.0 4.7-4.9 200 -0.18 0.2-0.4 450
    HF26/26 3.7/3.8 370/380 2.89/3.01 230/240 3.27/3.39 260/270 3.3/3.4 26.0/27.0 4.7-4.9 200 -0.18 0.2-0.4 450
    HF26/30 3.85/3.95 385/395 3.27/3.39 260/270 3.77/3.89 300/310 3.3/3.4 26.0/27.0 4.7-4.9 200 -0.18 0.2-0.4 450
    HF28/26 3.85/3.95 385/395 3.14/3.33 250/265 3.27/3.45 260/275 3.5/3.8 28.0/30.0 4.7-4.9 200 -0.18 0.2-0.4 450
    HF28/28 3.85/3.95 385/395 3.27/3.39 260/270 3.50/3.60 280/290 3.5/3.8 28.0/30.0 4.7-4.9 200 -0.18 0.2-0.4 450
    HF30/26 3.95/4.05 395/405 3.14/3.33 250/260 3.27/3.39 260/270 3.8/3.9 30.0/31.5 4.7-4.9 200 -0.18 0.2-0.4 450
    HF32/17 4.1/4.20 410/420 2.01/2.26 160/180 2.07/2.20 165/175 4.0/4.1 32.0/33.0 4.7-4.9 200 -0.18 0.2-0.4 450
    HF32/22 4.10/4.20 410/420 2.70/2.83 215/225 2.76/2.89 220/230 4.0/4.1 32.0/33.0 4.7-4.9 200 -0.18 0.2-0.4 450
    HF32/25 4.10/4.20 410/420 3.01/3.14 240/250 3.14/3.27 250/260 4.0/4.1 32.0/33.0 4.7-4.9 200 -0.18 0.2-0.4 450

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