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Nitrogen - Thermal Conductivity vs. Temperature and Pressure

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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 nitrogen depends on temperature and pressure as shown in the figures and tables below.

Nitrogen phase diagram

Online Nitrogen Thermal Conductivity Calculator

The calculator below can be used to estimate the thermal conductivity of nitrogen at given temperature and atmospheric pressure.

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 Nitrogen at varying temperature and pressure : Density and specific weight , Dynamic and kinematic viscosity , Prandtl number , Specific heat (Heat capacity) and thermal diffusivity , and thermophysical properties at standard conditions ,
as well as thermal conductivity o f air , ammonia , butane , carbon dioxide , ethane , ethylene , hydrogen , methane , propane and water . For thermal conductivity of construction materials, see related documents at the bottom of the page.



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

For full table - rotate the screen!

Nitrogen - Thermal Conductivity vs. Temperature and Pressure
Temperature Thermal conductivity Temperature Thermal conductivity
[K] [°C] [mW/(m K)] [kcal(IT)/(h m K)] [K] [°F] [Btu(IT)/(h ft °F)] [kcal(IT)/(h m K)]
78 -195 7.253 0.00624 78 -320 0.00416 0.00619
98 -175 9.216 0.00792 89 -300 0.00479 0.00713
123 -150 11.58 0.00995 116 -250 0.00633 0.00942
148 -125 13.84 0.01190 144 -200 0.00780 0.01161
173 -100 16.02 0.01378 172 -150 0.00920 0.01370
198 -75 18.12 0.01558 200 -100 0.01055 0.01570
223 -50 20.15 0.01732 228 -50 0.01184 0.01763
231 -42 20.78 0.01787 231 -44 0.01200 0.01785
248 -25 22.10 0.01901 244 -20 0.01260 0.01875
263 -10 23.25 0.01999 255 0 0.01309 0.01948
268 -5 23.62 0.02031 266 20 0.01358 0.02021
278 5 24.37 0.02095 278 40 0.01406 0.02092
283 10 24.74 0.02127 283 50 0.01429 0.02127
293 20 25.47 0.02190 294 70 0.01476 0.02197
298 25 25.83 0.02221 300 80 0.01500 0.02232
303 30 26.19 0.02252 305 90 0.01523 0.02266
323 50 27.62 0.02375 311 100 0.01546 0.02300
348 75 29.35 0.02524 339 150 0.01658 0.02468
373 100 31.04 0.02669 366 200 0.01768 0.02631
398 125 32.69 0.02811 394 250 0.01874 0.02789
423 150 34.30 0.02949 422 300 0.01978 0.02943
448 175 35.87 0.03085 478 400 0.02178 0.03241
473 200 37.42 0.03217 533 500 0.02369 0.03526
573 300 43.32 0.03725 644 700 0.02733 0.04066
623 350 46.13 0.03966 700 800 0.02906 0.04325
673 400 48.86 0.04202 755 900 0.03075 0.04576
773 500 54.14 0.04655 811 1000 0.03240 0.04821

Thermal conductivity unit converter


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

For full table with Thermal Conductivity - rotate the screen!

Nitrogen - 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
63.15 -210.0 -346.0 0.125 1.82 173.2 0.1490 0.1001
69 -204 -335 0.332 4.82 161.5 0.1388 0.09330
75 -198 -325 0.760 11.0 149.5 0.1285 0.08636
79 -194 -317 1.22 17.8 141.5 0.1217 0.08176
85 -188 -307 2.29 33.2 129.7 0.1115 0.07492
89 -184 -299 3.31 47.9 121.8 0.1047 0.07036
95 -178 -289 5.41 78.4 110.0 0.09454 0.06353
99 -174 -281 7.26 105 102.1 0.08777 0.05898
105 -168 -271 10.8 157 90.27 0.07762 0.05216
109 -164 -263 13.8 201 82.40 0.07085 0.04761
115 -158 -253 19.4 281 70.63 0.06073 0.04081
121 -152 -242 26.4 383 59.20 0.05090 0.03420
Gas at
equilibrium
63.15 -210.0 -346.0 0.125 1.82 5.621 0.00483 0.00325
69 -204 -335 0.332 4.82 6.246 0.00537 0.00361
75 -198 -325 0.760 11.0 6.914 0.00594 0.00399
79 -194 -317 1.22 17.8 7.384 0.00635 0.00427
85 -188 -307 2.29 33.2 8.148 0.00701 0.00471
89 -184 -299 3.31 47.9 8.716 0.00749 0.00504
95 -178 -289 5.41 78.4 9.706 0.00835 0.00561
99 -174 -281 7.26 105 10.50 0.00903 0.00607
105 -168 -271 10.8 157 12.04 0.01035 0.00695
109 -164 -263 13.8 201 13.42 0.01154 0.00775
115 -158 -253 19.4 281 16.58 0.01426 0.00958
121 -152 -242 26.4 383 23.42 0.02014 0.01353
Liquid 63.17 -210.0 -346.0 1 14.5 173.3 0.1490 0.1001
77.24 -195.9 -320.6 1 14.5 145.0 0.1247 0.08378
Gas 77.24 -195.9 -320.6 1 14.5 7.174 0.00617 0.00415
80 -193.2 -315.7 1 14.5 7.443 0.00640 0.00430
100 -173.2 -279.7 1 14.5 9.381 0.00807 0.00542
120 -153.2 -243.7 1 14.5 11.27 0.00969 0.00651
140 -133.2 -207.7 1 14.5 13.11 0.01127 0.00757
160 -113.2 -171.7 1 14.5 14.89 0.01280 0.00860
180 -93.2 -135.7 1 14.5 16.61 0.01428 0.00960
200 -73.2 -99.7 1 14.5 18.28 0.01572 0.01056
220 -53.2 -63.7 1 14.5 19.90 0.01711 0.01150
240 -33.2 -27.7 1 14.5 21.48 0.01847 0.01241
260 -13.2 8.3 1 14.5 23.01 0.01979 0.01329
280 6.9 44.3 1 14.5 24.51 0.02107 0.01416
300 26.9 80.3 1 14.5 25.97 0.02233 0.01501
320 46.9 116.3 1 14.5 27.39 0.02355 0.01583
340 66.9 152.3 1 14.5 28.79 0.02475 0.01663
360 86.9 188.3 1 14.5 30.15 0.02592 0.01742
400 126.9 260.3 1 14.5 32.81 0.02821 0.01896
500 226.9 440.3 1 14.5 39.04 0.03357 0.02256
600 326.9 620.3 1 14.5 44.84 0.03856 0.02591
700 426.9 800.3 1 14.5 50.31 0.04326 0.02907
800 526.9 980.3 1 14.5 55.51 0.04773 0.03207
900 626.9 1160.3 1 14.5 60.52 0.05204 0.03497
1000 726.9 1340.3 1 14.5 65.36 0.05620 0.03776
Liquid 63.37 -210 -346 10 145 173.6 0.1493 0.1003
80 -193 -316 10 145 140.5 0.1208 0.08118
100 -173 -280 10 145 100.6 0.08648 0.05811
103.8 -169.4 -272.9 10 145 92.74 0.07974 0.05358
Gas 103.8 -169.4 -272.9 10 145 11.67 0.01004 0.00674
140.0 -133.2 -207.7 10 145 14.00 0.01204 0.00809
160 -113 -172 10 145 15.60 0.01341 0.00901
180 -93 -136 10 145 17.21 0.01480 0.00994
200 -73.2 -99.7 10 145 18.81 0.01617 0.01087
240 -33.2 -27.7 10 145 21.90 0.01883 0.01265
300 26.9 80.3 10 145 26.29 0.02261 0.01519
400 127 260 10 145 33.04 0.02841 0.01909
500 227 440 10 145 39.23 0.03373 0.02267
600 327 620 10 145 44.99 0.03869 0.02600
800 527 980 10 145 55.63 0.04783 0.03214
1100 827 1520 10 145 70.16 0.06032 0.04053
1600 1327 2420 10 145 92.40 0.07945 0.05339
Supercritical
phase
100 -173 -280 50 725 108.1 0.09298 0.06248
600 327 620 50 725 45.80 0.03938 0.02646
1100 827 1520 50 725 70.56 0.06067 0.04077
1600 1327 2420 50 725 92.66 0.07968 0.05354
Liquid 65.32 -208 -342 100 1450 177.1 0.1523 0.1023


Supercritical
phase




80 -193 -316 100 1450 150.4 0.1293 0.08690
100 -173 -280 100 1450 115.9 0.09966 0.06697
200 -73.2 -99.7 100 1450 29.38 0.02526 0.01698
300 26.9 80.3 100 1450 31.14 0.02678 0.01799
400 127 260 100 1450 36.35 0.03126 0.02100
500 227 440 100 1450 41.73 0.03588 0.02411
600 327 620 100 1450 47.00 0.04041 0.02715
1100 827 1520 100 1450 71.130 0.06116 0.04110
1600 1327 2420 100 1450 93.033 0.07999 0.05375

Thermal conductivity unit converter

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