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Platinum

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Platinum
Chemical composition: Pt
Property Value in metric unit Value in US unit
Density 21.45 *10³ kg/m³ 1339 lb/ft³
Modulus of elasticity 171 GPa 24800 ksi
Thermal expansion (20 ºC) 9.1*10-6 ºCˉ¹ 5.1*10-6 in/(in* ºF)
Specific heat capacity 126 J/(kg*K) 0.03 BTU/(lb*ºF)
Thermal conductivity 75 W/(m*K) 520 BTU*in/(hr*ft²*ºF)
Heat of fusion 1.136*105 J/kg 48.8 BTU/lb
Electrical resistivity 9.85*10-8 Ohm*m 9.85*10-6 Ohm*cm
Tensile strength (annealed) 137 MPa 19870 psi
Elongation (annealed) 37 % 37 %
Hardness (annealed) 40 HV 40 HV
Melting point 1768 ºC 3214 ºF

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