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Technetium, Tc; Annealed
Categories: Metal; Nonferrous Metal; Pure Element

Material Notes: Annealed applies only to tensile and/or hardness values; other property values are typical of the element. Property values for Tc-99. Annealed 10 min at 950°C (1740°F)

See also As-Rolled Tc.

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Physical PropertiesOriginal ValueComments
Density 11.5 g/cc
 
Chemical PropertiesOriginal ValueComments
Atomic Mass 98Longest-Lived Isotope (1995)
Atomic Number 43
X-ray Absorption Edge 0.58888 ÅK
 4.06426 ÅLI
 4.42714 ÅLII
 4.62537 ÅLIII
Electronegativity 2.1Pauling
Ionic Radius 0.979 ÅCrystal Ionic Radius for Valence +7
 
Mechanical PropertiesOriginal ValueComments
Hardness, Brinell 112
Hardness, Vickers 151
Tensile Strength, Ultimate 800 MPa
Tensile Strength, Yield 320 MPa
@Strain 0.2 %
Elongation at Break 30 %in 25 mm
Tensile Modulus 322 GPa
Bulk Modulus 281 GPa
Poissons Ratio 0.31
Shear Modulus 123 GPa
 
Electrical PropertiesOriginal ValueComments
Electrical Resistivity 0.0000185 ohm-cm
Magnetic Susceptibility 0.0000027cgs/g
Critical Magnetic Field Strength, Oersted 1410
Critical Superconducting Temperature 7.80 K
 
Thermal PropertiesOriginal ValueComments
CTE, linear 7.05 µm/m-°C
@Temperature -120 - 25.0 °C
Thermal Conductivity 50.6 W/m-KPolycrystalline Sample
Melting Point 2200 °C
Boiling Point 4265 °C
 
Component Elements PropertiesOriginal ValueComments
Technetium, Tc 100 %
 
Descriptive Properties
CAS Number7440-26-8

References for this datasheet.

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to go back to viewing the property data in MatWeb's normal format.

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AMETc01 / 112

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