Uranium, U; Cast

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Uranium, U; Cast
Categories:	Metal; Nonferrous Metal; Pure Element
Material Notes:	Cast applies only to tensile and/or hardness values; other property values are typical of the element. Two other pure U sample preps are in MatWeb.
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Physical Properties	Metric	English	Comments

Density	19.07 g/cc	0.6889 lb/in³

Chemical Properties	Metric	English	Comments
Atomic Mass	238.0289	238.0289	1995
Atomic Number	92	92
Thermal Neutron Cross Section	694 barns/atom	694 barns/atom
X-ray Absorption Edge	0.10775 Å	0.10775 Å	K
	0.56974 Å	0.56974 Å	L_I
	0.59186 Å	0.59186 Å	L_II
	0.72225 Å	0.72225 Å	L_III
Electrode Potential	-1.40 V	-1.40 V
Electronegativity	1.7	1.7	Pauling
Ionic Radius	0.800 Å	0.800 Å	Crystal Ionic Radius for Valence +6
	0.970 Å	0.970 Å	Crystal Ionic Radius for Valence +4

Mechanical Properties	Metric	English	Comments
Hardness, Brinell	185	185	Converted from Vickers for 3000 kg load/10 mm ball Brinell test. Unspecified heat treatment.
Hardness, Rockwell A	55	55	Converted from Vickers. Unspecified heat treatment.
Hardness, Rockwell B	90	90	Converted from Vickers. Unspecified heat treatment.
Hardness, Rockwell C	10	10	Converted from Vickers. Unspecified heat treatment.
Hardness, Vickers	190	190	Unspecified heat treatment.
Tensile Strength, Ultimate	400 MPa	58000 psi
Tensile Strength, Yield	200 MPa	29000 psi
Elongation at Break	4.0 %	4.0 %
Modulus of Elasticity	190 GPa	27600 ksi
Poissons Ratio	0.22	0.22
Shear Modulus	77.9 GPa	11300 ksi	Calculated

Electrical Properties	Metric	English	Comments
Electrical Resistivity	0.0000300 ohm-cm	0.0000300 ohm-cm
Magnetic Susceptibility	0.00000176	0.00000176	cgs/g
Critical Superconducting Temperature	0.400 - 2.40 K	0.400 - 2.40 K	2.4-0.4 K from 1.0-8.5 GPa pressure

Thermal Properties	Metric	English	Comments
Heat of Fusion	50.0 J/g	21.5 BTU/lb
CTE, linear	19.0 µm/m-°C @Temperature 20.0 - 100 °C	10.6 µin/in-°F @Temperature 68.0 - 212 °F
Specific Heat Capacity	0.1156 J/g-°C	0.02763 BTU/lb-°F
Thermal Conductivity	26.8 W/m-K	186 BTU-in/hr-ft²-°F
Melting Point	1132.3 °C	2070.1 °F
Boiling Point	4131 °C	7468 °F

Optical Properties	Metric	English	Comments
Emissivity (0-1)	0.54	0.54	unoxidized total
Reflection Coefficient, Visible (0-1)	0.735	0.735	spectral 660 nm

Component Elements Properties	Metric	English	Comments
Uranium, U	100 %	100 %

Descriptive Properties
CAS Number	7440-61-1

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 view all the property values for this datasheet as they were originally entered into MatWeb.

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