Nitrogen - Thermal Conductivity vs. Temperature and Pressure

Online calculator, figures and tables showing thermal conductivity of nitrogen, N₂, 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 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).

Temperature

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

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.

Nitrogen thermal conductivity pressure C

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
State	(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
Liquid	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