Metals - Specific Heats

Commonly used metals - aluminum, iron, mercury and many more - and their specific heats - imperial and SI units

The specific heat of commonly used metals:

MetalSpecific Heat - cp
(kJ/kg K) (kcal/kgoC) (Btu/lbmoF)
Aluminum 0.91 0.22 0.22
Antimony 0.21 0.05 0.05
Barium 0.20 0.048 0.048
Beryllium 1.83 0.436 0.436
Bismuth 0.13 0.03 0.03
Cadmium 0.23 0.055 0.055
Calsium 0.63 0.15 0.15
Carbon Steel 0.49 0.12 0.12
Cast Iron 0.46 0.11 0.11
Cesium 0.24 0.057 0.057
Chromium 0.46 0.11 0.11
Cobalt 0.42 0.1 0.1
Copper 0.39 0.092 0.09
Gallium 0.37 0.088 0.088
Germanium 0.32 0.076 0.076
Gold 0.13 0.031 0.03
Hafnium 0.14 0.033 0.033
Indium 0.24 0.057 0.057
Iridium 0.13 0.031 0.31
Iron 0.45 0.108 0.11
Lanthanum 0.195 0.047 0.047
Lead 0.13 0.031 0.03
Lithium 3.57 0.85 0.85
Lutetium 0.15 0.036 0.036
Magnesium 1.05 0.243 0.25
Manganese 0.48 0.114 0.114
Mercury 0.14 0.033 0.03
Molybdenum 0.25 0.06 0.06
Nickel 0.44 0.104 0.10
Niobium (Columbium) 0.27 0.064 0.064
Osmium 0.13 0.031 0.031
Palladium 0.24 0.057 0.057
Platinum 0.13 0.032 0.03
Plutonium 0.13 0.032 0.032
Potassium 0.75 0.180 0.180
Rhenium 0.14 0.033 0.033
Rhodium 0.24 0.058 0.058
Rubidium 0.36 0.086 0.086
Ruthenium 0.24 0.057 0.057
Scandium 0.57 0.14 0.14
Selenium 0.32 0.077 0.077
Silicon 0.71 0.17 0.17
Silver 0.23 0.057 0.057
Sodium 1.21 0.29 0.29
Strontium 0.30 0.072 0.072
Tantalum 0.14 0.034 0.034
Thallium 0.13 0.03 0.03
Thorium 0.13 0.03 0.03
Tin 0.21 0.054 0.05
Titanium 0.54 0.125 0.13
Tungsten 0.13 0.032 0.032
Uranium 0.12 0.028 0.028
Vanadium 0.39 0.116 0.116
Yttrium 0.30 0.072 0.072
Zinc 0.39 0.093 0.09
Zirconium 0.27 0.06 0.06
Wrought Iron 0.50 0.12 0.12
  • 1 J/(kg K) = 2.389x10-4 kcal/(kg oC) = 2.389x10-4 Btu/(lbm oF)
  • 1 kJ/(kg K) = 0.2389 kcal/(kg oC) = 0.2389 Btu/(lbm oF)
  • 1 Btu/(lbm oF) = 4,186.8 J/ (kg K) = 1 kcal/(kg oC)
  • 1 kcal/(kg oC) = 4,186.8 J/ (kg K) = 1 Btu/(lbm oF)

Heating Energy

The energy required to heat a product can be calculated as

q = cp m dt   (1)

where

q = heat required (kJ)

cp = specific heat (kJ/kg K, kJ/kg oC)

dt = temperature difference (K, oC)

Example - Heating Carbon Steel

2 kg of carbon steel is heated from 20 oC to 100 oC. The specific heat of carbon steel is 0.49 kJ/kg0C and the heat required can be calculated as

q = (0.49 kJ/kg oC) (2 kg) ((100 oC) - (20 oC)) 

     = 78.4 (kJ)

Related Topics

  • Material Properties - Material properties for gases, fluids and solids - densities, specific heats, viscosities and more

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