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Alliance S-28B Samarium Cobalt Magnetic Material  (discontinued **)
Categories: Metal; Electronic/Magnetic Alloy; Nonferrous Metal; Cobalt Alloy

Key Words: SmCo Magnet Magnets
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Physical PropertiesOriginal ValueComments
Density 8.40 g/cc
 
Mechanical PropertiesOriginal ValueComments
Hardness, Vickers 640
Modulus of Elasticity 150 GPa
Flexural Strength 90.0 - 150 MPa
Compressive Strength 650 MPa
 
Electrical PropertiesOriginal ValueComments
Electrical Resistivity 0.0000750 - 0.0000850 ohm-cm
Magnetic Coercive Force, Hc 10000 Oe
 20000 OeIntrinsic
Magnetic Remanence, Br 10900 Gauss
Magnetic Maximum Energy Product, BH 28 MGOe
Curie Temperature 750 °C
 
Thermal PropertiesOriginal ValueComments
CTE, linear 10.0 µm/m-°C
@Temperature 20.0 °C
Parallel DOM
CTE, linear, Transverse to Flow 12.0 µm/m-°C
@Temperature 23.0 °C
Perpendicular to M
Specific Heat Capacity 0.390 J/g-°C
Thermal Conductivity 12.0 W/m-K
Maximum Service Temperature, Air 300 °C
 
Descriptive Properties
Reversible Temp Coef., Bd-0.03 %/°C
Reversible Temp Coef., Hd+0.23 %/°C
Temperature Coefficient, Br-0.03 %/°C(20-100°C)
Temperature Coefficient, Hci-0.18 %/°C(20-100°C)

**
Materials flagged as discontinued () are no longer part of the manufacturer’s standard product line according to our latest information. These materials may be available by special order, in distribution inventory, or reinstated as an active product. Data sheets from materials that are no longer available remain in MatWeb to assist users in finding replacement materials.

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Users viewing this material also viewed the following:
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