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Platinum, Pt, CP Grade, Annealed

Subcategory: Metal; Nonferrous Metal; Precious Metal; Pure Element

Component    Wt. % Pt 99.95

Material Notes:
CP Grade (Commercially Pure) is 99.95% pure.

Physical Properties	Metric	English	Comments
Density	21.45 g/cc	0.775 lb/in³
Mechanical Properties
Hardness, Vickers	40	40
Tensile Strength, Ultimate	125 - 165 MPa	18100 - 23900 psi
Elongation at Break	35 %	35 %	in 50 mm
Modulus of Elasticity	171 GPa	24800 ksi	static in tension
Poisson's Ratio	0.39	0.39
Shear Modulus	62 GPa	8990 ksi	Calculated value
Electrical Properties
Electrical Resistivity	1.06e-005 ohm-cm	1.06e-005 ohm-cm	Temperature Coefficient of resistivity is 0.0039/K.
Magnetic Susceptibility	1.1e-006	1.1e-006	cgs/g
Thermal Properties
Heat of Fusion	113 J/g	48.6 BTU/lb
CTE, linear 20°C	9.1 µm/m-°C	5.06 µin/in-°F
Specific Heat Capacity	0.134 J/g-°C	0.032 BTU/lb-°F
Thermal Conductivity	69.1 W/m-K	480 BTU-in/hr-ft²-°F
Melting Point	1769 °C	3220 °F
Optical Properties
Emissivity (0-1)	0.152	0.152	at 1000°C for total hemispherical
Emissivity (0-1)	0.3	0.3	650 nm
Reflection Coefficient, Visible (0-1)	0.7	0.7	bulk Pt; 589 nm

References are available for this material.