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Rulon Bearings

Samarium, Sm
Categories: Metal; Nonferrous Metal; Pure Element

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Physical PropertiesMetricEnglishComments
Density 7.54 g/cc0.272 lb/in³
 
Chemical PropertiesMetricEnglishComments
Atomic Mass 150.36150.361995
Atomic Number 6262
X-ray Absorption Edge 0.26462 Å0.26462 ÅK
 1.60113 Å1.60113 ÅLI
 1.69436 Å1.69436 ÅLII
 1.84464 Å1.84464 ÅLIII
Electronegativity 1.171.17Pauling
Ionic Radius 0.964 Å0.964 ÅCrystal Ionic Radius for Valence +3
 
Mechanical PropertiesMetricEnglishComments
Hardness, Vickers 3939
Tensile Strength, Ultimate 120 - 156 MPa17400 - 22600 psidifferent sources report in this range
Tensile Strength, Yield 68.0 - 112 MPa9860 - 16200 psi
Elongation at Break 17 %17 %
Tensile Modulus 49.7 GPa7210 ksi
Bulk Modulus 37.8 GPa5480 ksi
Poissons Ratio 0.2740.274
Shear Modulus 19.5 GPa2830 ksi
 
Electrical PropertiesMetricEnglishComments
Electrical Resistivity 0.000105 ohm-cm0.000105 ohm-cm
Magnetic Susceptibility 0.000008480.00000848cgs/g
 
Thermal PropertiesMetricEnglishComments
Heat of Fusion 58.0 J/g25.0 BTU/lb
CTE, linear 9.60 µm/m-°C5.33 µin/in-°Falong a-axis
 19.0 µm/m-°C10.6 µin/in-°Falong c-axis
 12.7 µm/m-°C
@Temperature 20.0 °C
7.06 µin/in-°F
@Temperature 68.0 °F
Bulk
Specific Heat Capacity 0.180 J/g-°C0.0430 BTU/lb-°F
Thermal Conductivity 13.3 W/m-K92.3 BTU-in/hr-ft²-°FPolycrystalline Sample
Melting Point 1067 - 1077 °C1953 - 1971 °F
Boiling Point 1794 °C3261 °F
 
Optical PropertiesMetricEnglishComments
Emissivity (0-1) 0.437
@Wavelength >=645 nm,
Temperature 852 - 1072 °C
0.437
@Wavelength >=645 nm,
Temperature 1570 - 1962 °F
 
Component Elements PropertiesMetricEnglishComments
Samarium, Sm 100 %100 %
 
Descriptive Properties
CAS Number7440-19-9

References for this datasheet.

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