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# Propane - Thermal Conductivity vs. Temperature and Pressure

## Online calculator, figures and tables showing thermal conductivity of liquid and gaseous propane at varying temperarure and pressure, SI and Imperial units.

Thermal conductivity is a material property that describes ability to conduct heat. Thermal conductivity can be defined as

"the quantity of heat transmitted through a unit thickness of a material - in a direction normal to a surface of unit area - due to a unit temperature gradient under steady state conditions"

The SI unit used for thermal conductivity is [W/m K], while a common Imperial unit is [Btu/h ft °F].

Thermal conductivity unit converter

The thermal conductivity of propane depends on temperature and pressure as shown in the figures and tables below.

Propane phase diagram

### Online Propane Thermal Conductivity Calculator

The calculator below can be used to estimate the thermal conductivity of propane at given temperature and atmospheric pressure.
Note! Propane boiling point at atmospheric pressure is -42 °C (-44°F), and hence, there is a shift in conductivity at that temperature.

The output thermal conductivity is given as mW/(m K), Btu(IT)/(h ft °F), (Btu(IT) in)/(h ft2 °F) and kcal(IT)/(h m K).

Temperature

Choose the actual unit of temperature: °C  °F  °R

See also other properties of Propane at varying temperature and pressure:  Density and specific weightPrandtl numberSpecific heat (heat capacity), Thermal diffusivity and Thermophysical properties at standard conditions,
as well as thermal conductivity o For thermal conductivity of construction materials, see related documents at the bottom of the page.

Thermal conductivity of propane at given temperatures (°C and °F) and 1 bara:

For full table with Thermal Conductivity - rotate the screen!

 State Temperature Thermal conductivity Temperature Thermal conductivity [K] [°C] [mW/m K] [kcal(IT)/(h m K)] [K] [°F] [Btu(IT)/(h ft °F)] Liquid 123 -150 193 0.166 116 -250 0.113 148 -125 179 0.154 144 -200 0.105 173 -100 164 0.141 172 -150 0.095 198 -75 149 0.128 200 -100 0.086 223 -50 134 0.115 228 -50 0.076 231 -42 129 0.111 231 -44 0.075 Gas 231 -42 11.6 0.0100 231 -44 0.00668 248 -25 13.2 0.0113 244 -20 0.00739 263 -10 14.6 0.0126 255 0 0.00801 268 -5 15.1 0.0130 266 20 0.00865 273 0 15.6 0.0135 272 30 0.00898 278 5 16.2 0.0139 283 50 0.00964 298 25 18.3 0.0157 300 80 0.0107 303 30 18.9 0.0162 305 90 0.0110 323 50 21.1 0.0182 311 100 0.0114 348 75 24.2 0.0208 339 150 0.0133 373 100 27.4 0.0235 366 200 0.0153 398 125 30.7 0.0264 394 250 0.0174 423 150 34.3 0.0295 422 300 0.0197 448 175 38.0 0.0327 478 400 0.0247 473 200 42.0 0.0361 533 500 0.0301 523 250 50.3 0.0433 589 600 0.0361 573 300 59.4 0.0511 644 700 0.0426 623 350 69.3 0.0596 700 800 0.0496 673 400 79.8 0.0686 755 900 0.0571 773 500 103 0.0887 811 1000 0.0651

Thermal conductivity unit converter

Thermal conductivity of propane at given temperatures  and pressures, SI and Imperial units:

For full table  with Thermal Conductivity - rotate the screen!

 State Temperature Pressure Thermal conductivity [K] [°C] [°F] [bara] [psia] [mW/m K] [kcal(IT)/(h m K)] [Btu(IT)/(h ft °F)] Liquid at equilibrium 85.53 -187.68 -305.82 1.7E-09 2.5E-08 207.9 0.1788 0.1201 100 -173 -280 2.5E-07 3.7E-06 203.2 0.1747 0.1174 130 -143 -226 0.000176 0.00255 189.4 0.1629 0.1094 160 -113 -172 0.00850 0.1233 172.3 0.1482 0.09955 190 -83.2 -118 0.1055 1.530 154.0 0.1324 0.08896 220 -53.2 -63.7 0.6058 8.787 135.7 0.1167 0.07842 250 -23.2 -9.7 2.180 31.62 118.4 0.1018 0.06841 280 6.9 44.3 5.817 84.37 102.5 0.08815 0.05923 310 36.9 98.3 12.73 184.6 88.32 0.07594 0.05103 320 46.9 116 15.99 231.9 83.94 0.07218 0.04850 340 66.9 152 24.32 352.7 75.58 0.06499 0.04367 355 81.9 179 32.43 470.4 69.49 0.05975 0.04015 360 86.9 188 35.55 515.6 67.72 0.05823 0.03913 85.53 -187.68 -305.82 1.7E-09 2.5E-08 1.706 0.001467 0.0009857 Gas at equilibrium 100 -173 -280 2.5E-07 3.7E-06 2.417 0.002078 0.001397 130 -143 -226 0.000176 0.00255 4.085 0.003512 0.002360 160 -113 -172 0.00850 0.1233 6.013 0.005170 0.003474 190 -83.2 -118 0.1055 1.530 8.192 0.007044 0.004733 220 -53.2 -63.7 0.6058 8.787 10.61 0.009124 0.006131 250 -23.2 -9.7 2.180 31.62 13.32 0.01146 0.007698 280 6.9 44.3 5.817 84.37 16.54 0.01423 0.009559 310 36.9 98.3 12.73 184.6 20.86 0.01794 0.01205 320 46.9 116 15.99 231.9 22.78 0.01959 0.01316 340 66.9 152 24.32 352.7 28.19 0.02424 0.01629 355 81.9 179 32.43 470.4 36.06 0.03101 0.02084 360 86.9 188 35.55 515.6 41.36 0.03556 0.02390 Liquid 85.53 -187.62 -305.72 1 14.5 207.9 0.1788 0.1201 100 -173 -280 1 14.5 203.2 0.1747 0.1174 120 -153 -244 1 14.5 194.5 0.1672 0.1124 140 -133 -208 1 14.5 184.0 0.1582 0.1063 160 -113 -172 1 14.5 172.4 0.1482 0.09961 180 -93.2 -136 1 14.5 160.2 0.1377 0.09256 200 -73.2 -99.7 1 14.5 147.9 0.1272 0.08545 220 -53.2 -63.7 1 14.5 135.7 0.1167 0.07841 230.74 -42.41 -44.34 1 14.5 129.4 0.1113 0.07477 Gas 230.74 -42.41 -44.34 1 14.5 11.54 0.009923 0.006668 240 -33.2 -27.7 1 14.5 12.40 0.01066 0.007165 260 -13.2 8.3 1 14.5 14.32 0.01231 0.008274 280 6.9 44.3 1 14.5 16.36 0.01407 0.009453 300 26.9 80.3 1 14.5 18.51 0.01592 0.01069 320 46.9 116 1 14.5 20.78 0.01787 0.01201 340 66.9 152 1 14.5 23.16 0.01991 0.01338 360 86.9 188 1 14.5 25.66 0.02206 0.01483 400 127 260 1 14.5 30.99 0.02665 0.01791 500 227 440 1 14.5 46.36 0.03986 0.02679 600 327 620 1 14.5 64.63 0.05557 0.03734 700 427 800 1 14.5 85.81 0.07378 0.04958 800 527 980 1 14.5 109.9 0.09450 0.06350 900 627 1160 1 14.5 136.9 0.1177 0.07910 1000 727 1340 1 14.5 166.8 0.1434 0.09638 Liquid 85.62 -187.53 -305.55 10 145 208.1 0.1789 0.1202 100 -173 -280 10 145 203.5 0.1750 0.1176 120 -153 -244 10 145 194.8 0.1675 0.1126 140 -133 -208 10 145 184.3 0.1585 0.1065 160 -113 -172 10 145 172.8 0.1486 0.09984 180 -93.2 -136 10 145 160.7 0.1382 0.09285 200 -73.2 -99.7 10 145 148.4 0.1276 0.08574 220 -53.2 -63.7 10 145 136.3 0.1172 0.07875 240 -33.2 -27.7 10 145 124.6 0.1071 0.07199 260 -13.2 8.3 10 145 113.5 0.09759 0.06558 280 6.9 44.3 10 145 102.9 0.08848 0.05945 300.09 26.94 80.49 10 145 92.82 0.07981 0.05363 Gas 300.09 26.94 80.49 10 145 19.25 0.01655 0.01112 320 46.9 116 10 145 21.49 0.01848 0.01242 340 66.9 152 10 145 23.91 0.02056 0.01381 360 86.9 188 10 145 26.46 0.02275 0.01529 400 127 260 10 145 31.92 0.02745 0.01844 500 227 440 10 145 47.56 0.04089 0.02748 600 327 620 10 145 66.04 0.05678 0.03816 700 427 800 10 145 87.38 0.07513 0.05049 800 527 980 10 145 111.6 0.09596 0.06448 900 627 1160 10 145 138.7 0.1193 0.08014 1000 727 1340 10 145 168.7 0.1451 0.09747 Liquid 100 -173 -280 50 725 204.5 0.1758 0.1182 200 -73.2 -99.7 50 725 150.7 0.1296 0.08707 300 26.9 80.3 50 725 97.14 0.08352 0.05613 Supercritical phase 400 127 260 50 725 42.44 0.03649 0.02452 500 227 440 50 725 52.41 0.04507 0.03028 Liquid 86.45 -187 -304 100 1450 209.8 0.1804 0.1212 100 -173 -280 100 1450 205.7 0.1769 0.1189 120 -153 -244 100 1450 197.6 0.1699 0.1142 140 -133 -208 100 1450 187.7 0.1614 0.1085 160 -113 -172 100 1450 176.7 0.1519 0.1021 180 -93.2 -136 100 1450 165.2 0.1420 0.09545 200 -73.2 -99.7 100 1450 153.5 0.1320 0.08868 220 -53.2 -63.7 100 1450 142.0 0.1221 0.08205 240 -33.2 -27.7 100 1450 130.9 0.1126 0.07563 260 -13.2 8.3 100 1450 120.5 0.1036 0.06962 280 6.9 44.3 100 1450 110.7 0.09518 0.06396 300 26.9 80.3 100 1450 101.8 0.08753 0.05882 320 46.9 116 100 1450 93.68 0.08055 0.05413 340 66.9 152 100 1450 86.37 0.07426 0.04990 360 86.9 188 100 1450 79.79 0.06861 0.04610 Supercritical phase 400 127 260 100 1450 68.25 0.05868 0.03943 500 227 440 100 1450 58.85 0.05060 0.03400 600 327 620 100 1450 73.95 0.06359 0.04273 700 427 800 100 1450 95.32 0.08196 0.05507 800 527 980 100 1450 120.1 0.1033 0.06939 900 627 1160 100 1450 148.0 0.1273 0.08551 1000 727 1340 100 1450 178.8 0.1537 0.1033

Thermal conductivity unit converter

## Related Topics

• Fluid Mechanics - The study of fluids - liquids and gases. Involving velocity, pressure, density and temperature as functions of space and time.
• Material Properties - Material properties of gases, fluids and solids - densities, specific heats, viscosities and more.
• Thermodynamics - Work, heat and energy systems.

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