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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).

Choose the actual unit of temperature:

See also other properties of Propane at varying temperature and pressure: Density and specific weight, Dynamic and Kinematic Viscosity, Prandtl number, Specific heat (heat capacity), Thermal diffusivity and Thermophysical properties at standard conditions,
as well as thermal conductivity of air, ammonia, butane, carbon dioxide, ethane, ethylene, hydrogen, methane, nitrogen and water . For thermal conductivity of construction materials, see related documents at the bottom of the page.

Propane thermal conductivity Pressure C

Propane thermal conductivity Pressure F

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

For full table with Thermal Conductivity - rotate the screen!

Propane - Thermal Conductivity vs. Temperature and Pressure
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!

Propane - Thermal Conductivity vs. Temperature and Pressure
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

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