Plutonium, Pu

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Plutonium, Pu
Categories:	Metal; Nonferrous Metal; Pure Element
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Physical Properties	Metric	English	Comments

Density	19.0 g/cc	0.686 lb/in³

Chemical Properties	Metric	English	Comments
Atomic Mass	244	244	Longest-Lived Isotope (1995)
Atomic Number	94	94
X-ray Absorption Edge	0.10228 Å	0.10228 Å	K
	0.53662 Å	0.53662 Å	L_I
	0.55712 Å	0.55712 Å	L_II
	0.68637 Å	0.68637 Å	L_III
Electronegativity	1.3	1.3	Pauling
Ionic Radius	0.930 Å	0.930 Å	Crystal Ionic Radius for Valence +4
	1.08 Å	1.08 Å	Crystal Ionic Radius for Valence +3
Electrochemical Equivalent	2.8 g/A/h	2.8 g/A/h

Mechanical Properties	Metric	English	Comments
Hardness, Brinell	242	242	Converted from Vickers for 3000 kg load/10 mm ball Brinell test.
Hardness, Rockwell A	62	62	Converted from Vickers.
Hardness, Rockwell C	22	22	Converted from Vickers.
Hardness, Vickers	250	250
Tensile Strength, Ultimate	400 MPa	58000 psi	Cast Alpha
Tensile Strength, Yield	275 MPa	39900 psi	Cast Alpha
Elongation at Break	0.20 - 0.50 %	0.20 - 0.50 %	Cast Alpha
Modulus of Elasticity	96.5 GPa	14000 ksi	Cast
Compressive Yield Strength	415 MPa	60200 psi
Ultimate Compressive Strength	830 MPa	120000 psi
Poissons Ratio	0.15 - 0.21	0.15 - 0.21
Fatigue Strength	90.0 MPa @# of Cycles 1.00e+8	13100 psi @# of Cycles 1.00e+8	rotating beam
Shear Modulus	45.0 GPa	6530 ksi

Electrical Properties	Metric	English	Comments
Electrical Resistivity	0.000150 ohm-cm	0.000150 ohm-cm
Magnetic Susceptibility	0.0000022	0.0000022	cgs/g

Thermal Properties	Metric	English	Comments
Heat of Fusion	13.0 J/g	5.59 BTU/lb
CTE, linear	35.0 µm/m-°C @Temperature 250 °C	19.4 µin/in-°F @Temperature 482 °F	bulk gamma phase
	37.0 µm/m-°C @Temperature 500 °C	20.6 µin/in-°F @Temperature 932 °F	bulk gamma phase
	55.0 µm/m-°C @Temperature 20.0 - 100 °C	30.6 µin/in-°F @Temperature 68.0 - 212 °F
Thermal Conductivity	8.40 W/m-K	58.3 BTU-in/hr-ft²-°F
Melting Point	640 °C	1180 °F
Boiling Point	3228 °C	5842 °F

Component Elements Properties	Metric	English	Comments
Plutonium, Pu	100 %	100 %

References for this datasheet.

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