Platinum, Pt, CP Grade, Hard Drawn

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Platinum, Pt, CP Grade, Hard Drawn - 50% Cold Worked
Categories:	Metal; Nonferrous Metal; Precious Metal; Platinum Alloy; Pure Element
Material Notes:	CP Grade (Commercially Pure) is 99.95% pure. Hard Drawn - 50% Cold Worked applies to strength, modulus, and hardness; other values are typical of Pt.
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Physical Properties	Metric	English	Comments

Density	21.45 g/cc	0.7749 lb/in³

Chemical Properties	Metric	English	Comments
Atomic Mass	195.078	195.078	1995
Atomic Number	78	78
Thermal Neutron Cross Section	9.0 barns/atom	9.0 barns/atom
X-ray Absorption Edge	0.15817 Å	0.15817 Å	K
	0.89405 Å	0.89405 Å	L_I
	0.93484 Å	0.93484 Å	L_II
	1.07306 Å	1.07306 Å	L_III
Electrode Potential	1.2 V	1.2 V
Electronegativity	2.2	2.2	Pauling
Ionic Radius	0.650 Å	0.650 Å	Crystal Ionic Radius for Valence +4
	0.800 Å	0.800 Å	Crystal Ionic Radius for Valence +2
Electrochemical Equivalent	1.816 g/A/h	1.816 g/A/h

Mechanical Properties	Metric	English	Comments
Hardness, Knoop	103	103	Estimated from Vickers.
Hardness, Rockwell B	49	49	Estimated from Vickers.
Hardness, Vickers	90	90
Tensile Strength, Ultimate	205 - 240 MPa	29700 - 34800 psi
Elongation at Break	1.0 - 3.0 %	1.0 - 3.0 %	in 50 mm
Tensile Modulus	156 GPa	22600 ksi	static
Poissons Ratio	0.39	0.39
Shear Modulus	56.0 GPa	8120 ksi	Calculated value

Electrical Properties	Metric	English	Comments
Electrical Resistivity	0.0000106 ohm-cm	0.0000106 ohm-cm	Temperature Coefficient of resistivity is 0.0039/K.
Magnetic Susceptibility	0.0000011	0.0000011	cgs/g

Thermal Properties	Metric	English	Comments
Heat of Fusion	113 J/g	48.6 BTU/lb
Heat of Vaporization	2407 J/g	1035 BTU/lb
CTE, linear	9.10 µm/m-°C @Temperature 20.0 °C	5.06 µin/in-°F @Temperature 68.0 °F
Specific Heat Capacity	0.134 J/g-°C	0.0320 BTU/lb-°F
Thermal Conductivity	69.1 W/m-K	480 BTU-in/hr-ft²-°F
Melting Point	1769 °C	3216 °F
Boiling Point	3825 °C	6917 °F

Optical Properties	Metric	English	Comments
Emissivity (0-1)	0.30	0.30	650 nm
	0.152 @Temperature 1000 °C	0.152 @Temperature 1830 °F	Total Hemispherical
Reflection Coefficient, Visible (0-1)	0.70	0.70	bulk Pt; 589 nm

Component Elements Properties	Metric	English	Comments
Platinum, Pt	99.95 %	99.95 %

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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