Permanent Magnetic Materials

Permanent magnets are strong magnetic materials which have been found and applied earliest in the history, which is also a kind of magnetic material with very wide category.

China Rare Earth Magnet Limited is one of the leading magnet manufactures & suppliers, many permanent magnets ltd & permanent magnet companies ordered magnets or magnetic assemblies from our company. We have NdFeB permanent magnets for sale, Ferrite magnets, AlNiCo magnets, SmCo magnets and rubber magnets for sale.

They are universally used in industry, such as automotive, telecommunications, data processing, home appliances, electronics, instrumentation, and robotics, aerospace and so on.

How to choose correct magnet? Customers usually choose magnet according to magnetic properties requirement & working temperature.

Comparison Table of Different Permanent Magnets

Magnetic Materials

Br mT

 (kGs)

Hcb kA/m

  (kOe)

Hcj kA/m

(kOe)

(BH)max KJ/m3 (MGOe)

Max.Working Temperature (Tw°C)

Manufacturing Process

Price

Sintered NdFeB Magnets

1080-1430

(10.8-14.3)

≥764-1033

(≥9.6-13.0)

≥876-2388

(≥11-30)

207-398

(26-50)

80-220

Sintered

Medium

Bonded NdFeB Magnets

200-800

(2-8)

120-480

(1.5-6)

480-1440

(6-18)

8-92

(1-11.5)

100-150

Bonded

Medium

Cast AlNiCo Magnets

580-1300

(8-13)

37-140

(0.48-1.75)

/

10.0-72

(1.2-9)

450-550

Cast

Medium

Sintered AlNiCo Magnets

550-1100

(5.500-11)

42-140

(0.531.75)

 

9.0-42

(1.13-5.25)

450

Sintered

Medium

SmCo Magnets

800-1100

(8-11)

410-760

(5.150-9.5)

432-1590

(5.43-20)

144-240

(18.0-30.0)

250-350

Sintered

High

Ferrite Magnets

200-430

(2-4.3)

125-288

(1.57-3.617)

140-320

(1.76-4.01)

6.5-34.4

(0.8-4.32)

 

Sintered

Low