Density, specific heat, melting point of copper

History of Copper
Density, specific heat, melting point of copper

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Main physical properties

The following properties are important:

  • Density, g/cm3 - 8.96;
  • Tensile strength of filamentous copper crystals (tensile test), GPa - 3.0...3.2;
  • Actual value of modulus of elasticity of filamentous crystals, GPa - 126;
  • Actual modulus of elasticity of rolled copper, GPa - 105...130;
  • ultimate tensile and compressive strength, MPa - 30...120 (the upper limit corresponds to the deformed copper);
  • Brinell average hardness under normal conditions, HB - 35...40;
  • Hardness according to Mohs conditional mineralogical scale, points - 3,0;
  • Surface tension of copper melt, mN/m - 1350;
  • Dynamic viscosity of copper melt, μPas - 0.7;
  • Isothermal compressibility factor in normal conditions 10...15 MPa, - 7.0x10-12 Pa-1;
  • Sound propagation velocity, m/s - 4700;
  • Temperature coefficient of linear expansion in normal conditions and in the temperature range 0...600°C, C-1 - 16,2x10-6 ...18,9x10-6 (with increasing temperature values of the coefficient increases);
  • Specific electrical resistance, μOmm - 0,0172;

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Thermal properties

  • Specific heat capacity at 20 °C, kJ/kgK - 0.383;
  • The relative change of volume in melting, % -4,2;
  • Specific heat of fusion (1358,030 C) and at normal atmospheric pressure, kJ/kg - 213;
  • Boiling point, °С - 2540;
  • Thermal conductivity in the temperature range 0...100°С, W/mK - 395,4...392 (for electrotechnical copper);
  • Relative change of resistivity during melting - 2.4;
  • Temperature coefficient of resistivity in the temperature range of 0...100°С, °С-1 - 0.0043;
  • Thermo-electrode EMF (temperature of 350...500°С), mV - +0,75;
  • Magnetic permeability in normal conditions - 0,9999.

Buy. Supplier, price

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