Ceramic Ferrite Magnet Grades

Ceramic Magnets, aka Hard Ferrite Magnets, are permanent magnet materials composed of Iron Oxide (Fe2O3), Barium (Ba) or Strontium (Sr) or any combination of the two. Ceramic magnets are the lowest cost permanent magnet. Ceramic Ferrite Magnets are resistant to corrosion and demagnetization with a maximum working temperature up to 350C.

Ferrite C5 and Ferrite C8 are the most widely used Ceramic Magnet Grades. Due to their low cost, Ferrite magnets are used in a wide range of applications, including motors, loudspeakers, and industrial applications. If you have questions, please contact us. We are always happy to assist you!

Ferrite
Grade

Br (Gauss)Hc
(Oe)		Hci
(Oe)		(BH)max
(MGOe)		Reversible
Temperature Coefficients
Br%/°C		Reversible
Temperature Coefficients
Hcj%/°C		Continuous
Working Temp. Max °C		BH Curve

C0

2,100 – 2,3001,600 – 2,0002,650 – 2,9500.7 – 1.1-0.200.35350

C1

2,250 – 2,4501,750 – 2,0503,100 – 3,4000.9 – 2.0-0.20
0.35350

C4

3,200 – 3,4001,700 – 2,1001,750 – 2,1502.3 – 2.7-0.200.35350

C4B

3,800 – 4,0001,800 – 2,2001,850 – 2,2503.0 – 3.4-0.200.35350

C5

3,800 – 4,0502,200 – 2,6002,250 – 2,6503.2 – 3.6-0.200.35350BH Curve

C7

3,700 – 3,9003,300 – 3,6503,850 – 4,150 3.6 – 3.8-0.200.35350BH Curve

C8

3,900 – 4,1003,000 – 3,4003,050 – 3,4503.4 – 3.8-0.200.35350BH Curve

C8H

3,700 – 3,9003,500 – 3,8004,800 – 5,1003.2 – 3.6-0.200.35350

C8B

3,950 – 4,1503,300 – 3,6503,500 – 3,8003.6 – 4.0-0.200.35350

C9H

3,900 – 4,1003,670 – 3,9704350 – 46504.0 – 4.4-0.200.35350

C9B

4,300 – 4,5003,100 – 3,4003,150 – 3,4504.4 – 4.8-0.200.35350

C10

4,000 – 4,2002,700- 3,0002,750 – 3,0503.7 – 4.1-0.200.35350

C10H

4,100 – 4,3003,550 – 3,8503,850 – 4,1504.0 – 4.4-0.200.35350

C11

4,200 – 4,4004,020 – 4,3204,850 – 5.1504.2 – 4.6-0.200.35350

C12

4,500 – 4,7003,200 – 3,5003,450 – 3,7504.8 – 5.2-0.200.35350