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Arc SmCo Magnet

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Arc SmCo Magnet

Magnet type: mCo Magnet Arc

Material Grade: XG26H,28H,30H are normally used

Working Temperature: 50°C

Surface Treatment: ncoated,Nickel coated for choice

Magnetization Direction: hrough Thickness,Diameterical

Customization: cceptable

  • Product Details

Samarium Cobalt Arc Magnet 

A samarium cobalt arc magnet, is a customized samarium cobalt made by a powder metallurgical process. 

Manufactured using binders such as epoxy, samarium cobalt magnets are inherently very brittle. 

Users are discouraged from grinding material because dry remnants are a fire hazard. Some of the advantages of

using samarium cobalt is that it provides excellent temperature stability and as well as excellent corrosion resistance. 

Because of this, typically coating or plating is not required. Samarium cobalt is excellent for operating in harsh

environments were it will be exposed to the elements as well as high operating temperatures.

They are commonly used at sensors or other devices where the magnet needs to operate in high temperatures.


Parameter Name Unit SmCo5 Sm2Co17
Density g/cm³       8.2 ~ 8.4    8.3 ~ 8.5
Curie Temperature   700 ~ 750  800 ~ 850
Max. Operating Temperature                                                      250 350
Temperature Coefficient Of Br                                                 %/ -0.05 -0.03
Vickers Hardness                                                    HV 450 ~ 500 550 ~600
Electronic Ressistivity Ω.cm 5 ~ 6 x 10(-5 8 ~ 9 x 10(-5)
Thermal Conductivity W/mK 12 13

1 Mixing  1.Mix the ingredients. 
2 Melting  2.Dissolve the mixture at high temperature and prepare an alloy. 
3 Fine pulverization  3.Turn the alloy into fine powder. 
4 Molding in a magnetic field  4.When pressing the fine powder, apply a magnetic field to it and 
prepare a molded product of powder with aligned directions of magnetization. 
5 Sintering and heat treatment  5.Sinter the product at about 1,200, and then subject it to heat treatment 
at about 1000 to increase its magnetic characteristics. 
6 Processing  6.Process the manufactured magnet base material and finish it into the product shape. 
7 Magnetization  7. Surface-treat it for rustproofing 


Applications of Samarium Cobalt
Computer disc drives
Sensors
Traveling wave tubes
Linear actuators
Satellite systems
Motors where temporary stability is vital

Air condition

Coreless motor


Regarding of magnetic properties of SmCo Magnet, Please click here.

For your different application,different grade/series for your choice.

UNMAG are supplying SmCo magnets applied in various industrial applications. We have advanced technology, 

rich experience, and professional engineering technicians in this field. 


For more details,welcome to contact with our sales engineers.                                             
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