银河磁体Stock Code:300127

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Samarium-Cobalt Magnets

Samarium-Cobalt Magnets

Characteristics:

1、The Sm-Co Magnet has high magnetic performance (high Br, Hcb & (BH) max), reaching the (BH) max of 35MGOe under room temperature, which is only lower than Nd-Fe-B magnet, but much higher than other magnets.

2、The working temperature of the Sm-Co magnet can reach 550℃ that is the highest among all other magnets.

3、The So-Co magnet has strong corrosion resistance and anti-oxidation, which can be used for a durable time.

4、The Sm-Co magnet has an extremely low temperature coefficient, generally -0.030%/K.

     

The Sm-Co magnets are comprehensively applied in the field of space and aviation, national defense and military electronics, micro-wave parts, communications , medical electronics, automobile, magnetic pump, instrument & meters, sorts of sensors and high-ten motors.


  • Magnetic and Physical Properties
  • Typical Applications

Material

Grade

剩余磁感应强度Br

T(kGs)

矫顽力Hcb

kA/m(kOe)

内禀矫顽力Hcj

kA/m(KOe)

最大磁能积(BH)max

kJ/m3(MGOe)

剩磁温度系数αBr

%/℃

最大工作温度Max


居里点

密度ρ

kg/m³

弯曲强度

MPa

压缩强度

MPa

杨氏模量

GPa

韦氏硬度

Hv

电阻率

Ω•m

导热系数

W/mK

热膨胀系数/℃

J/kgK

C∥C⊥
SmCo5GSM-22

0.90~1.00

(9.0~10.0)

677~780

(8.5~9.8)

≥1433

(≥18)

159~191

(20~24)

-0.065250700~7508.1~8.4×1031801000160400~5005.3×10-7136×10-613×10-6377
Sm2Co17GSM-28H

1.02~1.12

(10.2~11.2)

732~85

(9.2~10.7)

≥1592

(≥20)

207~239

(26~30)

-0.041350800~8508.3~8.5×103150800120500~6008.5×10-7128×10-611×10-6335
GSM-30H

1.06~1.16

(10.6~11.6)

764~884

(9.6~11.1)

≥1592

(≥20)

223~255

(28~32)

-0.040 350
GSM-32H

1.08~1.18

(10.8~11.8)

780~884

(9.8~11.1)

≥1592

(≥20)

231~263

(29~33)

-0.040 350

Adjustable Hcb

Sm2Co17

GSM-30L

1.06~1.16

(10.6~11.6)

318~716

(4.0~9.0)

557~796

(7.0~20.0)

223~255

(28~32)

-0.044350
GSM-32L

1.08~1.16

(10.8~11.6)

318~716

(4.0~9.0)

557~796

(7.0~20.0)

231~263

(29~33)

-0.044350

Temperature Compensation

Magnet Sm2Co17

GSM-18D

0.80~0.90

(8.0~9.0)

557~677

(7.0~8.5)

≥1433

(≥18)

127~159

(16~20)

0.045*(1)350
GSM-20D

0.85~0.95

(8.5~9.5)

597~716

(7.5~9.0)

≥1592

(≥20)

143~175

(18~22)

0.004*(1)350
GSM-22D

0.90~1.00

(9.0~10.0)

637~756

(8.0~9.5)

≥1592

(≥20)

159~191

(20~24)

-0.001*(1)350


Aerospace-used Motors (including electric generators and motors )

The Sm-Co magnets applied in aerospace motors have advantages in small size, low weight and high reliability which cannot be reached by other permanent materials.

IMG_3951

Sorts of military-used motors and high-end motors


If applied in military related motors with high reliability, especially for navy, generally Sm-Co magnets shall be the best choice.

IMG_3922

Automotive Sensors

For automotive sensors related to safety, such as ABS, requiring high reliability, the Sm-Co magnets shall also be the best choice.

IMG_3980

Magnetic Pump

The Sm-Co magnets have characteristics of high temperature and corrosion resistance which can be comprehensively applied in magnetic pumps in the oil and chemical industries.

24

Microwave Ferrite Parts

The Sm-Co Magnets have high magnetic stability which comprehensively applied in microwave ferrite parts.

IMG_3971

Back to the typical case