Steam table · US customary units

Superheated Steam Table (US Units)

IAPWS-IF97 water and steam properties in psi absolute, °F, ft³/lb, and BTU/lb.

Choose a pressure section, then select a temperature to calculate that state.

1 psi absolute

Superheated vapor at 1 psi absolute. Coordinates are shown without padded zeros; calculated properties use six significant figures.
T (°F)	v (ft³/lb)	h (BTU/lb)	s (BTU/(lb·°F))	cₚ (BTU/(lb·°F))	μ (cP)	λ (BTU/(hr·ft·°F))
200	392.532	1150.11	2.05096	0.453650	0.0120816	0.0136563
250	422.422	1172.83	2.08416	0.455404	0.0131291	0.0150011
300	452.276	1195.66	2.11525	0.457991	0.0142049	0.0164112
350	482.110	1218.64	2.14453	0.461094	0.0153025	0.0178825
400	511.930	1241.78	2.17227	0.464533	0.0164166	0.0194112
450	541.742	1265.09	2.19863	0.468202	0.0175431	0.0209935
500	571.548	1288.60	2.22378	0.472037	0.0186786	0.0226262
550	601.349	1312.30	2.24786	0.475999	0.0198204	0.0243061
600	631.148	1336.20	2.27096	0.480066	0.0209662	0.0260305
650	660.944	1360.31	2.29319	0.484221	0.0221141	0.0277966
700	690.739	1384.62	2.31462	0.488458	0.0232624	0.0296020
750	720.532	1409.15	2.33533	0.492770	0.0244098	0.0314443
800	750.324	1433.90	2.35538	0.497151	0.0255551	0.0333216
850	780.115	1458.87	2.37481	0.501596	0.0266974	0.0352317
900	809.905	1484.06	2.39369	0.506100	0.0278357	0.0371727
950	839.695	1509.48	2.41205	0.510657	0.0289695	0.0391430
1000	869.484	1535.13	2.42993	0.515258	0.0300981	0.0411408
1050	899.272	1561.01	2.44736	0.519895	0.0312210	0.0431646
1100	929.060	1587.12	2.46438	0.524561	0.0323378	0.0452129
1150	958.848	1613.46	2.48100	0.529247	0.0334482	0.0472842
1200	988.636	1640.04	2.49726	0.533944	0.0345518	0.0493773
1250	1018.42	1666.86	2.51318	0.538645	0.0356483	0.0514910
1300	1048.21	1693.91	2.52877	0.543343	0.0367377	0.0536240
1350	1078.00	1721.19	2.54406	0.548036	0.0378197	0.0557752
1400	1107.78	1748.71	2.55906	0.552723	0.0388943	0.0579435
1450	1137.57	1776.46	2.57379	0.557404	0.0399613	0.0601280
1500	1167.36	1804.47	2.58826	0.562326	0.0410207	0.0623277

2 psi absolute

Superheated vapor at 2 psi absolute. Coordinates are shown without padded zeros; calculated properties use six significant figures.
T (°F)	v (ft³/lb)	h (BTU/lb)	s (BTU/(lb·°F))	cₚ (BTU/(lb·°F))	μ (cP)	λ (BTU/(hr·ft·°F))
200	196.049	1149.71	1.97406	0.456662	0.0120740	0.0136722
250	211.047	1172.55	2.00744	0.457223	0.0131234	0.0150168
300	226.009	1195.45	2.03862	0.459148	0.0142007	0.0164256
350	240.951	1218.47	2.06797	0.461865	0.0152994	0.0178954
400	255.879	1241.65	2.09574	0.465070	0.0164142	0.0194224
450	270.798	1264.99	2.12213	0.468592	0.0175413	0.0210032
500	285.711	1288.51	2.14730	0.472330	0.0186773	0.0226345
550	300.621	1312.22	2.17139	0.476226	0.0198194	0.0243133
600	315.527	1336.13	2.19451	0.480246	0.0209655	0.0260367
650	330.431	1360.25	2.21674	0.484369	0.0221136	0.0278020
700	345.333	1384.57	2.23818	0.488581	0.0232621	0.0296067
750	360.234	1409.11	2.25889	0.492873	0.0244096	0.0314486
800	375.133	1433.86	2.27894	0.497239	0.0255550	0.0333254
850	390.032	1458.83	2.29838	0.501672	0.0266974	0.0352352
900	404.929	1484.03	2.31726	0.506166	0.0278358	0.0371760
950	419.827	1509.45	2.33563	0.510714	0.0289697	0.0391461
1000	434.723	1535.10	2.35351	0.515308	0.0300983	0.0411437
1050	449.619	1560.98	2.37094	0.519940	0.0312213	0.0431674
1100	464.515	1587.09	2.38796	0.524601	0.0323381	0.0452156
1150	479.410	1613.44	2.40458	0.529282	0.0334484	0.0472870
1200	494.305	1640.02	2.42084	0.533975	0.0345520	0.0493801
1250	509.200	1666.84	2.43676	0.538673	0.0356486	0.0514938
1300	524.095	1693.89	2.45236	0.543369	0.0367380	0.0536268
1350	538.989	1721.18	2.46765	0.548059	0.0378200	0.0557781
1400	553.883	1748.70	2.48265	0.552743	0.0388946	0.0579465
1450	568.777	1776.45	2.49738	0.557423	0.0399616	0.0601310
1500	583.671	1804.45	2.51185	0.562343	0.0410210	0.0623308

5 psi absolute

Superheated vapor at 5 psi absolute. Coordinates are shown without padded zeros; calculated properties use six significant figures.
T (°F)	v (ft³/lb)	h (BTU/lb)	s (BTU/(lb·°F))	cₚ (BTU/(lb·°F))	μ (cP)	λ (BTU/(hr·ft·°F))
200	78.1552	1148.49	1.87158	0.466079	0.0120510	0.0137201
250	84.2203	1171.69	1.90548	0.462796	0.0131066	0.0150640
300	90.2482	1194.82	1.93698	0.462678	0.0141882	0.0164691
350	96.2545	1217.99	1.96651	0.464211	0.0152899	0.0179340
400	102.247	1241.26	1.99440	0.466698	0.0164071	0.0194560
450	108.231	1264.67	2.02086	0.469769	0.0175360	0.0210323
500	114.209	1288.24	2.04609	0.473213	0.0186733	0.0226596
550	120.183	1311.99	2.07022	0.476910	0.0198165	0.0243349
600	126.154	1335.93	2.09336	0.480790	0.0209634	0.0260554
650	132.123	1360.07	2.11562	0.484811	0.0221121	0.0278183
700	138.089	1384.42	2.13708	0.488948	0.0232611	0.0296210
750	144.054	1408.97	2.15780	0.493182	0.0244091	0.0314613
800	150.018	1433.74	2.17786	0.497503	0.0255548	0.0333369
850	155.982	1458.72	2.19732	0.501900	0.0266974	0.0352457
900	161.944	1483.93	2.21620	0.506364	0.0278361	0.0371857
950	167.906	1509.36	2.23457	0.510887	0.0289701	0.0391552
1000	173.867	1535.02	2.25246	0.515461	0.0300989	0.0411525
1050	179.827	1560.90	2.26989	0.520075	0.0312219	0.0431760
1100	185.788	1587.02	2.28692	0.524721	0.0323388	0.0452240
1150	191.747	1613.38	2.30355	0.529389	0.0334492	0.0472953
1200	197.707	1639.96	2.31981	0.534071	0.0345529	0.0493884
1250	203.666	1666.78	2.33573	0.538758	0.0356495	0.0515022
1300	209.626	1693.84	2.35133	0.543446	0.0367389	0.0536353
1350	215.584	1721.13	2.36662	0.548128	0.0378209	0.0557867
1400	221.543	1748.65	2.38162	0.552805	0.0388955	0.0579553
1450	227.502	1776.41	2.39635	0.557479	0.0399625	0.0601401
1500	233.460	1804.42	2.41083	0.562393	0.0410219	0.0623401

10 psi absolute

Superheated vapor at 10 psi absolute. Coordinates are shown without padded zeros; calculated properties use six significant figures.
T (°F)	v (ft³/lb)	h (BTU/lb)	s (BTU/(lb·°F))	cₚ (BTU/(lb·°F))	μ (cP)	λ (BTU/(hr·ft·°F))
200	38.8506	1146.39	1.79260	0.483888	0.0120126	0.0138011
250	41.9416	1170.24	1.82746	0.472487	0.0130783	0.0151435
300	44.9929	1193.75	1.85948	0.468755	0.0141672	0.0165420
350	48.0216	1217.17	1.88933	0.468220	0.0152742	0.0179987
400	51.0363	1240.60	1.91741	0.469466	0.0163953	0.0195124
450	54.0422	1264.13	1.94401	0.471761	0.0175271	0.0210810
500	57.0419	1287.79	1.96933	0.474701	0.0186667	0.0227015
550	60.0374	1311.61	1.99353	0.478058	0.0198117	0.0243710
600	63.0298	1335.60	2.01672	0.481702	0.0209599	0.0260866
650	66.0198	1359.78	2.03902	0.485553	0.0221097	0.0278454
700	69.0080	1384.16	2.06050	0.489562	0.0232596	0.0296449
750	71.9947	1408.74	2.08125	0.493699	0.0244082	0.0314825
800	74.9803	1433.53	2.10133	0.497943	0.0255545	0.0333560
850	77.9649	1458.53	2.12080	0.502279	0.0266975	0.0352631
900	80.9488	1483.76	2.13970	0.506694	0.0278365	0.0372020
950	83.9319	1509.20	2.15808	0.511176	0.0289708	0.0391706
1000	86.9146	1534.88	2.17598	0.515714	0.0300998	0.0411672
1050	89.8967	1560.78	2.19342	0.520299	0.0312230	0.0431902
1100	92.8785	1586.91	2.21045	0.524920	0.0323400	0.0452380
1150	95.8599	1613.27	2.22709	0.529566	0.0334505	0.0473092
1200	98.8410	1639.86	2.24336	0.534229	0.0345542	0.0494023
1250	101.822	1666.69	2.25928	0.538900	0.0356509	0.0515162
1300	104.803	1693.75	2.27488	0.543573	0.0367404	0.0536495
1350	107.783	1721.05	2.29018	0.548243	0.0378225	0.0558012
1400	110.763	1748.58	2.30518	0.552909	0.0388970	0.0579701
1450	113.743	1776.34	2.31992	0.557572	0.0399641	0.0601552
1500	116.723	1804.35	2.33439	0.562476	0.0410234	0.0623556

15 psi absolute

Superheated vapor at 15 psi absolute. Coordinates are shown without padded zeros; calculated properties use six significant figures.
T (°F)	v (ft³/lb)	h (BTU/lb)	s (BTU/(lb·°F))	cₚ (BTU/(lb·°F))	μ (cP)	λ (BTU/(hr·ft·°F))
250	27.8461	1168.75	1.78110	0.482758	0.0130500	0.0152241
300	29.9064	1192.66	1.81367	0.475075	0.0141461	0.0166157
350	31.9432	1216.33	1.84384	0.472357	0.0152585	0.0180638
400	33.9656	1239.94	1.87214	0.472303	0.0163835	0.0195691
450	35.9789	1263.59	1.89887	0.473790	0.0175182	0.0211299
500	37.9860	1287.34	1.92429	0.476210	0.0186601	0.0227435
550	39.9887	1311.22	1.94855	0.479219	0.0198068	0.0244072
600	41.9883	1335.26	1.97179	0.482621	0.0209564	0.0261178
650	43.9855	1359.49	1.99412	0.486298	0.0221073	0.0278726
700	45.9808	1383.90	2.01564	0.490179	0.0232580	0.0296688
750	47.9748	1408.51	2.03642	0.494218	0.0244073	0.0315038
800	49.9675	1433.32	2.05652	0.498385	0.0255541	0.0333751
850	51.9593	1458.35	2.07600	0.502659	0.0266976	0.0352806
900	53.9504	1483.59	2.09491	0.507024	0.0278369	0.0372182
950	55.9407	1509.05	2.11330	0.511465	0.0289715	0.0391859
1000	57.9305	1534.74	2.13121	0.515969	0.0301007	0.0411819
1050	59.9199	1560.65	2.14866	0.520524	0.0312241	0.0432044
1100	61.9088	1586.79	2.16570	0.525119	0.0323412	0.0452520
1150	63.8974	1613.16	2.18234	0.529744	0.0334519	0.0473231
1200	65.8857	1639.76	2.19862	0.534388	0.0345556	0.0494162
1250	67.8737	1666.60	2.21455	0.539043	0.0356524	0.0515302
1300	69.8615	1693.67	2.23015	0.543701	0.0367419	0.0536638
1350	71.8491	1720.97	2.24545	0.548358	0.0378240	0.0558157
1400	73.8365	1748.50	2.26046	0.553013	0.0388986	0.0579849
1450	75.8238	1776.27	2.27519	0.557666	0.0399656	0.0601704
1500	77.8111	1804.29	2.28967	0.562559	0.0410250	0.0623711

20 psi absolute

Superheated vapor at 20 psi absolute. Coordinates are shown without padded zeros; calculated properties use six significant figures.
T (°F)	v (ft³/lb)	h (BTU/lb)	s (BTU/(lb·°F))	cₚ (BTU/(lb·°F))	μ (cP)	λ (BTU/(hr·ft·°F))
250	20.7963	1167.21	1.74766	0.493841	0.0130215	0.0153058
300	22.3622	1191.55	1.78082	0.481646	0.0141250	0.0166901
350	23.9035	1215.49	1.81133	0.476621	0.0152427	0.0181295
400	25.4300	1239.28	1.83984	0.475208	0.0163717	0.0196261
450	26.9471	1263.05	1.86671	0.475858	0.0175094	0.0211790
500	28.4579	1286.88	1.89222	0.477740	0.0186535	0.0227857
550	29.9643	1310.83	1.91655	0.480392	0.0198020	0.0244435
600	31.4675	1334.93	1.93984	0.483547	0.0209530	0.0261492
650	32.9683	1359.19	1.96222	0.487048	0.0221049	0.0278999
700	34.4673	1383.64	1.98376	0.490798	0.0232565	0.0296928
750	35.9648	1408.28	2.00456	0.494738	0.0244064	0.0315251
800	37.4612	1433.11	2.02468	0.498828	0.0255538	0.0333943
850	38.9565	1458.16	2.04418	0.503040	0.0266977	0.0352982
900	40.4512	1483.42	2.06311	0.507355	0.0278374	0.0372345
950	41.9451	1508.90	2.08151	0.511754	0.0289722	0.0392012
1000	43.4385	1534.60	2.09942	0.516223	0.0301016	0.0411965
1050	44.9314	1560.52	2.11689	0.520749	0.0312252	0.0432187
1100	46.4239	1586.67	2.13393	0.525319	0.0323425	0.0452660
1150	47.9161	1613.05	2.15058	0.529922	0.0334532	0.0473370
1200	49.4080	1639.66	2.16686	0.534547	0.0345570	0.0494302
1250	50.8996	1666.51	2.18279	0.539185	0.0356538	0.0515443
1300	52.3910	1693.58	2.19840	0.543829	0.0367434	0.0536780
1350	53.8822	1720.89	2.21370	0.548473	0.0378255	0.0558302
1400	55.3732	1748.43	2.22871	0.553117	0.0389001	0.0579997
1450	56.8641	1776.20	2.24345	0.557760	0.0399671	0.0601855
1500	58.3549	1804.22	2.25793	0.562642	0.0410265	0.0623866

50 psi absolute

Superheated vapor at 50 psi absolute. Coordinates are shown without padded zeros; calculated properties use six significant figures.
T (°F)	v (ft³/lb)	h (BTU/lb)	s (BTU/(lb·°F))	cₚ (BTU/(lb·°F))	μ (cP)	λ (BTU/(hr·ft·°F))
300	8.77355	1184.45	1.67244	0.528608	0.0139971	0.0171542
350	9.42729	1210.20	1.70528	0.504968	0.0151475	0.0185349
400	10.0632	1235.15	1.73517	0.494095	0.0163005	0.0199757
450	10.6883	1259.71	1.76295	0.489064	0.0174562	0.0214787
500	11.3064	1284.11	1.78906	0.487375	0.0186140	0.0230423
550	11.9198	1308.48	1.81381	0.487690	0.0197731	0.0246636
600	12.5297	1332.90	1.83742	0.489256	0.0209323	0.0263390
650	13.1372	1357.42	1.86003	0.491636	0.0220907	0.0280648
700	13.7427	1382.07	1.88176	0.494569	0.0232473	0.0298375
750	14.3467	1406.88	1.90270	0.497893	0.0244013	0.0316535
800	14.9496	1431.87	1.92294	0.501506	0.0255519	0.0335100
850	15.5515	1457.04	1.94254	0.505341	0.0266984	0.0354039
900	16.1526	1482.40	1.96154	0.509349	0.0278401	0.0373326
950	16.7530	1507.97	1.98001	0.513495	0.0289765	0.0392937
1000	17.3528	1533.75	1.99798	0.517753	0.0301072	0.0412850
1050	17.9522	1559.75	2.01549	0.522101	0.0312317	0.0433045
1100	18.5512	1585.97	2.03258	0.526519	0.0323498	0.0453503
1150	19.1498	1612.40	2.04926	0.530990	0.0334611	0.0474206
1200	19.7481	1639.07	2.06557	0.535501	0.0345655	0.0495139
1250	20.3462	1665.95	2.08154	0.540040	0.0356626	0.0516287
1300	20.9441	1693.07	2.09717	0.544596	0.0367524	0.0537636
1350	21.5417	1720.41	2.11249	0.549164	0.0378346	0.0559173
1400	22.1392	1747.99	2.12752	0.553740	0.0389093	0.0580886
1450	22.7365	1775.79	2.14227	0.558323	0.0399764	0.0602764
1500	23.3338	1803.83	2.15677	0.563142	0.0410357	0.0624797

100 psi absolute

Superheated vapor at 100 psi absolute. Coordinates are shown without padded zeros; calculated properties use six significant figures.
T (°F)	v (ft³/lb)	h (BTU/lb)	s (BTU/(lb·°F))	cₚ (BTU/(lb·°F))	μ (cP)	λ (BTU/(hr·ft·°F))
350	4.59233	1200.44	1.61938	0.566972	0.0149861	0.0192600
400	4.93579	1227.77	1.65214	0.531365	0.0161809	0.0205894
450	5.26578	1253.86	1.68165	0.514206	0.0173675	0.0219983
500	5.58754	1279.32	1.70890	0.505193	0.0185486	0.0234834
550	5.90387	1304.46	1.73443	0.500863	0.0197254	0.0250397
600	6.21646	1329.45	1.75859	0.499363	0.0208984	0.0266619
650	6.52635	1354.42	1.78162	0.499638	0.0220676	0.0283445
700	6.83421	1379.44	1.80367	0.501070	0.0232327	0.0300823
750	7.14051	1404.54	1.82486	0.503287	0.0243934	0.0318705
800	7.44559	1429.77	1.84530	0.506057	0.0255493	0.0337050
850	7.74967	1455.16	1.86506	0.509231	0.0266999	0.0355819
900	8.05294	1480.70	1.88420	0.512710	0.0278450	0.0374976
950	8.35553	1506.43	1.90278	0.516424	0.0289841	0.0394492
1000	8.65756	1532.35	1.92085	0.520323	0.0301169	0.0414337
1050	8.95910	1558.47	1.93844	0.524368	0.0312431	0.0434486
1100	9.26024	1584.79	1.95560	0.528528	0.0323624	0.0454917
1150	9.56103	1611.32	1.97234	0.532778	0.0334747	0.0475609
1200	9.86152	1638.07	1.98870	0.537097	0.0345798	0.0496543
1250	10.1617	1665.03	2.00471	0.541469	0.0356774	0.0517702
1300	10.4617	1692.21	2.02038	0.545879	0.0367675	0.0539069
1350	10.7615	1719.62	2.03574	0.550318	0.0378501	0.0560631
1400	11.0612	1747.25	2.05080	0.554780	0.0389249	0.0582374
1450	11.3607	1775.10	2.06557	0.559263	0.0399920	0.0604285
1500	11.6601	1803.18	2.08009	0.563977	0.0410513	0.0626354

150 psi absolute

Superheated vapor at 150 psi absolute. Coordinates are shown without padded zeros; calculated properties use six significant figures.
T (°F)	v (ft³/lb)	h (BTU/lb)	s (BTU/(lb·°F))	cₚ (BTU/(lb·°F))	μ (cP)	λ (BTU/(hr·ft·°F))
400	3.22205	1219.71	1.60011	0.577411	0.0160600	0.0212484
450	3.45567	1247.64	1.63169	0.543450	0.0172786	0.0225461
500	3.67971	1274.31	1.66024	0.525294	0.0184835	0.0239427
550	3.89764	1300.30	1.68664	0.515348	0.0196783	0.0254282
600	4.11145	1325.93	1.71141	0.510238	0.0208652	0.0269935
650	4.32236	1351.38	1.73488	0.508099	0.0220452	0.0286304
700	4.53112	1376.77	1.75726	0.507852	0.0232188	0.0303318
750	4.73826	1402.18	1.77872	0.508856	0.0243861	0.0320912
800	4.94413	1427.67	1.79936	0.510720	0.0255473	0.0339031
850	5.14898	1453.26	1.81929	0.513195	0.0267021	0.0357624
900	5.35300	1478.99	1.83857	0.516121	0.0278505	0.0376648
950	5.55633	1504.88	1.85726	0.519387	0.0289922	0.0396065
1000	5.75909	1530.94	1.87543	0.522916	0.0301270	0.0415839
1050	5.96137	1557.18	1.89310	0.526652	0.0312548	0.0435942
1100	6.16324	1583.61	1.91032	0.530549	0.0323754	0.0456345
1150	6.36475	1610.23	1.92713	0.534575	0.0334886	0.0477024
1200	6.56596	1637.06	1.94354	0.538700	0.0345943	0.0497958
1250	6.76691	1664.10	1.95960	0.542903	0.0356925	0.0519126
1300	6.96763	1691.36	1.97531	0.547166	0.0367830	0.0540511
1350	7.16815	1718.82	1.99070	0.551476	0.0378657	0.0562098
1400	7.36850	1746.50	2.00579	0.555824	0.0389406	0.0583870
1450	7.56870	1774.40	2.02059	0.560206	0.0400077	0.0605814
1500	7.76886	1802.53	2.03513	0.564816	0.0410670	0.0627917

200 psi absolute

Superheated vapor at 200 psi absolute. Coordinates are shown without padded zeros; calculated properties use six significant figures.
T (°F)	v (ft³/lb)	h (BTU/lb)	s (BTU/(lb·°F))	cₚ (BTU/(lb·°F))	μ (cP)	λ (BTU/(hr·ft·°F))
400	2.36119	1210.86	1.56020	0.638976	0.0159370	0.0219634
450	2.54854	1241.02	1.59431	0.577224	0.0171894	0.0231262
500	2.72458	1269.07	1.62434	0.547794	0.0184188	0.0244224
550	2.89378	1296.01	1.65171	0.531201	0.0196320	0.0258300
600	3.05849	1322.31	1.67714	0.521916	0.0208328	0.0273342
650	3.22007	1348.27	1.70108	0.517041	0.0220236	0.0289228
700	3.37938	1374.06	1.72381	0.514928	0.0232056	0.0305862
750	3.53700	1399.80	1.74553	0.514609	0.0243796	0.0323156
800	3.69330	1425.54	1.76639	0.515500	0.0255459	0.0341041
850	3.84856	1451.36	1.78649	0.517236	0.0267049	0.0359454
900	4.00298	1477.28	1.80591	0.519583	0.0278565	0.0378341
950	4.15670	1503.33	1.82472	0.522385	0.0290007	0.0397656
1000	4.30983	1529.52	1.84298	0.525534	0.0301375	0.0417358
1050	4.46248	1555.88	1.86074	0.528953	0.0312669	0.0437411
1100	4.61472	1582.42	1.87803	0.532583	0.0323887	0.0457785
1150	4.76660	1609.14	1.89490	0.536381	0.0335028	0.0478450
1200	4.91817	1636.06	1.91137	0.540310	0.0346092	0.0499383
1250	5.06949	1663.18	1.92746	0.544343	0.0357079	0.0520560
1300	5.22057	1690.50	1.94321	0.548458	0.0367987	0.0541962
1350	5.37146	1718.02	1.95864	0.552637	0.0378816	0.0563572
1400	5.52217	1745.76	1.97376	0.556871	0.0389566	0.0585373
1450	5.67272	1773.71	1.98859	0.561151	0.0400237	0.0607349
1500	5.82325	1801.88	2.00315	0.565658	0.0410829	0.0629488

300 psi absolute

Superheated vapor at 300 psi absolute. Coordinates are shown without padded zeros; calculated properties use six significant figures.
T (°F)	v (ft³/lb)	h (BTU/lb)	s (BTU/(lb·°F))	cₚ (BTU/(lb·°F))	μ (cP)	λ (BTU/(hr·ft·°F))
450	1.63670	1226.44	1.53696	0.663766	0.0170094	0.0244064
500	1.76681	1257.86	1.57059	0.600724	0.0182904	0.0254520
550	1.88834	1286.98	1.60018	0.567289	0.0195412	0.0266782
600	2.00453	1314.82	1.62709	0.547821	0.0207704	0.0280454
650	2.11714	1341.90	1.65206	0.536447	0.0219828	0.0295288
700	2.22722	1368.54	1.67555	0.530009	0.0231816	0.0311104
750	2.33545	1394.95	1.69785	0.526695	0.0243687	0.0327764
800	2.44228	1421.25	1.71915	0.525430	0.0255453	0.0345156
850	2.54800	1447.52	1.73960	0.525559	0.0267122	0.0363191
900	2.65285	1473.82	1.75931	0.526668	0.0278701	0.0381792
950	2.75698	1500.19	1.77836	0.528491	0.0290193	0.0400895
1000	2.86051	1526.68	1.79682	0.530847	0.0301600	0.0420445
1050	2.96355	1553.29	1.81474	0.533610	0.0312924	0.0440395
1100	3.06616	1580.04	1.83218	0.536692	0.0324164	0.0460705
1150	3.16842	1606.96	1.84917	0.540023	0.0335323	0.0481339
1200	3.27037	1634.05	1.86574	0.543552	0.0346399	0.0502266
1250	3.37205	1661.32	1.88193	0.547240	0.0357394	0.0523458
1300	3.47350	1688.77	1.89776	0.551054	0.0368308	0.0544892
1350	3.57475	1716.42	1.91325	0.554971	0.0379140	0.0566547
1400	3.67583	1744.27	1.92843	0.558973	0.0389891	0.0588402
1450	3.77675	1772.32	1.94331	0.563050	0.0400562	0.0610441
1500	3.87763	1800.57	1.95791	0.567352	0.0411152	0.0632648

500 psi absolute

Superheated vapor at 500 psi absolute. Coordinates are shown without padded zeros; calculated properties use six significant figures.
T (°F)	v (ft³/lb)	h (BTU/lb)	s (BTU/(lb·°F))	cₚ (BTU/(lb·°F))	μ (cP)	λ (BTU/(hr·ft·°F))
500	0.992987	1231.93	1.49283	0.753499	0.0180368	0.0278941
550	1.07967	1266.97	1.52844	0.660133	0.0193683	0.0285957
600	1.15873	1298.64	1.55906	0.611033	0.0206557	0.0296083
650	1.23312	1328.40	1.58651	0.581963	0.0219116	0.0308359
700	1.30439	1357.02	1.61174	0.564242	0.0231434	0.0322271
750	1.37347	1384.94	1.63532	0.553398	0.0243558	0.0337491
800	1.44094	1412.43	1.65759	0.546900	0.0255522	0.0353788
850	1.50719	1439.68	1.67880	0.543251	0.0267345	0.0370991
900	1.57249	1466.79	1.69911	0.541534	0.0279043	0.0388966
950	1.63701	1493.85	1.71866	0.541175	0.0290627	0.0407605
1000	1.70091	1520.93	1.73753	0.541799	0.0302105	0.0426822
1050	1.76429	1548.05	1.75580	0.543157	0.0313482	0.0446543
1100	1.82724	1575.25	1.77353	0.545075	0.0324764	0.0466706
1150	1.88981	1602.56	1.79076	0.547430	0.0335952	0.0487262
1200	1.95207	1630.00	1.80755	0.550129	0.0347049	0.0508164
1250	2.01406	1657.58	1.82392	0.553103	0.0358058	0.0529375
1300	2.07582	1685.31	1.83991	0.556301	0.0368980	0.0550860
1350	2.13737	1713.21	1.85555	0.559682	0.0379815	0.0572596
1400	2.19875	1741.28	1.87085	0.563215	0.0390566	0.0594554
1450	2.25997	1769.54	1.88584	0.566879	0.0401233	0.0616712
1500	2.32114	1797.96	1.90052	0.570777	0.0411817	0.0639048

750 psi absolute

Superheated vapor at 750 psi absolute. Coordinates are shown without padded zeros; calculated properties use six significant figures.
T (°F)	v (ft³/lb)	h (BTU/lb)	s (BTU/(lb·°F))	cₚ (BTU/(lb·°F))	μ (cP)	λ (BTU/(hr·ft·°F))
550	0.668434	1237.28	1.46022	0.839100	0.0191713	0.0316171
600	0.731933	1275.82	1.49749	0.717514	0.0205346	0.0319119
650	0.788713	1309.95	1.52898	0.653721	0.0218444	0.0326907
700	0.841435	1341.62	1.55689	0.615788	0.0231159	0.0337739
750	0.891458	1371.77	1.58235	0.592156	0.0243583	0.0350747
800	0.939579	1400.97	1.60601	0.577134	0.0255774	0.0365416
850	0.986302	1429.57	1.62828	0.567559	0.0267771	0.0381409
900	1.03196	1457.79	1.64942	0.561564	0.0279603	0.0398484
950	1.07678	1485.77	1.66963	0.558006	0.0291288	0.0416459
1000	1.12093	1513.62	1.68904	0.556163	0.0302842	0.0435195
1050	1.16453	1541.41	1.70776	0.555564	0.0314276	0.0454580
1100	1.20768	1569.19	1.72587	0.555895	0.0325598	0.0474522
1150	1.25044	1597.01	1.74342	0.556937	0.0336815	0.0494947
1200	1.29288	1624.89	1.76048	0.558534	0.0347931	0.0515791
1250	1.33503	1652.87	1.77709	0.560574	0.0358950	0.0537001
1300	1.37695	1680.96	1.79328	0.562969	0.0369876	0.0558528
1350	1.41867	1709.17	1.80909	0.565657	0.0380710	0.0580350
1400	1.46020	1737.53	1.82455	0.568588	0.0391456	0.0602421
1450	1.50158	1766.03	1.83968	0.571727	0.0402114	0.0624713
1500	1.54289	1794.67	1.85447	0.575129	0.0412687	0.0647198

1000 psi absolute

Superheated vapor at 1000 psi absolute. Coordinates are shown without padded zeros; calculated properties use six significant figures.
T (°F)	v (ft³/lb)	h (BTU/lb)	s (BTU/(lb·°F))	cₚ (BTU/(lb·°F))	μ (cP)	λ (BTU/(hr·ft·°F))
550	0.453760	1199.14	1.39715	1.19345	0.0190043	0.0360738
600	0.514349	1249.26	1.44565	0.873925	0.0204459	0.0348174
650	0.564148	1289.42	1.48271	0.747392	0.0218069	0.0348790
700	0.608497	1324.93	1.51402	0.679084	0.0231149	0.0355319
750	0.649505	1357.77	1.54175	0.637853	0.0243840	0.0365461
800	0.688264	1388.96	1.56702	0.611673	0.0256231	0.0378120
850	0.725422	1419.09	1.59048	0.594621	0.0268377	0.0392661
900	0.761391	1448.52	1.61254	0.583398	0.0280320	0.0408675
950	0.796447	1477.50	1.63346	0.576045	0.0292088	0.0425873
1000	0.830783	1506.17	1.65345	0.571352	0.0303703	0.0444047
1050	0.864537	1534.66	1.67264	0.568547	0.0315179	0.0463033
1100	0.897813	1563.05	1.69114	0.567125	0.0326530	0.0482704
1150	0.930692	1591.39	1.70903	0.566742	0.0337765	0.0502958
1200	0.963235	1619.74	1.72637	0.567161	0.0348890	0.0523710
1250	0.995493	1648.12	1.74322	0.568211	0.0359912	0.0544890
1300	1.02751	1676.57	1.75962	0.569766	0.0370834	0.0566434
1350	1.05931	1705.10	1.77561	0.571734	0.0381661	0.0588321
1400	1.09093	1733.74	1.79122	0.574043	0.0392396	0.0610488
1450	1.12238	1762.51	1.80649	0.576643	0.0403041	0.0632897
1500	1.15378	1791.38	1.82140	0.579555	0.0413599	0.0655517

1500 psi absolute

Superheated vapor at 1500 psi absolute. Coordinates are shown without padded zeros; calculated properties use six significant figures.
T (°F)	v (ft³/lb)	h (BTU/lb)	s (BTU/(lb·°F))	cₚ (BTU/(lb·°F))	μ (cP)	λ (BTU/(hr·ft·°F))
600	0.281937	1175.39	1.34231	1.65467	0.0204532	0.0455946
650	0.333136	1239.62	1.40163	1.05744	0.0218644	0.0410327
700	0.372019	1286.82	1.44327	0.856910	0.0232172	0.0399855
750	0.405389	1326.89	1.47711	0.755818	0.0245209	0.0400743
800	0.435551	1363.08	1.50643	0.696242	0.0257858	0.0407567
850	0.463609	1396.87	1.53275	0.658355	0.0270195	0.0418156
900	0.490186	1429.12	1.55692	0.633252	0.0282275	0.0431389
950	0.515672	1460.33	1.57946	0.616214	0.0294139	0.0446594
1000	0.540326	1490.83	1.60072	0.604500	0.0305816	0.0463330
1050	0.564325	1520.84	1.62094	0.596430	0.0317330	0.0481289
1100	0.587799	1550.52	1.64028	0.590939	0.0328698	0.0500242
1150	0.610841	1579.97	1.65886	0.587330	0.0339933	0.0520015
1200	0.633525	1609.27	1.67679	0.585133	0.0351047	0.0540469
1250	0.655908	1638.50	1.69414	0.584023	0.0362047	0.0561492
1300	0.678033	1667.69	1.71097	0.583770	0.0372941	0.0582982
1350	0.699939	1696.89	1.72733	0.584206	0.0383733	0.0604933
1400	0.721655	1726.12	1.74327	0.585207	0.0394429	0.0627232
1450	0.743206	1755.42	1.75881	0.586680	0.0405032	0.0649826
1500	0.764672	1784.76	1.77397	0.588619	0.0415545	0.0672669

2000 psi absolute

Superheated vapor at 2000 psi absolute. Coordinates are shown without padded zeros; calculated properties use six significant figures.
T (°F)	v (ft³/lb)	h (BTU/lb)	s (BTU/(lb·°F))	cₚ (BTU/(lb·°F))	μ (cP)	λ (BTU/(hr·ft·°F))
650	0.205871	1167.53	1.31456	1.89506	0.0223066	0.0543342
700	0.248950	1239.73	1.37831	1.16507	0.0235397	0.0467669
750	0.280746	1291.22	1.42182	0.926680	0.0248137	0.0447911
800	0.307644	1334.29	1.45672	0.807636	0.0260684	0.0444358
850	0.331712	1372.78	1.48670	0.737504	0.0272975	0.0448718
900	0.353929	1408.46	1.51344	0.692630	0.0285024	0.0457864
950	0.374844	1442.29	1.53787	0.662538	0.0296856	0.0470256
1000	0.394798	1474.86	1.56058	0.641754	0.0308497	0.0485005
1050	0.414017	1506.56	1.58194	0.627124	0.0319969	0.0501545
1100	0.432656	1537.65	1.60220	0.616723	0.0331289	0.0519488
1150	0.450828	1568.29	1.62153	0.609326	0.0342472	0.0538553
1200	0.468617	1598.61	1.64009	0.604131	0.0353529	0.0558529
1250	0.486087	1628.73	1.65796	0.600598	0.0364470	0.0579246
1300	0.503287	1658.70	1.67524	0.598349	0.0375302	0.0600549
1350	0.520259	1688.58	1.69199	0.597119	0.0386032	0.0622468
1400	0.537034	1718.42	1.70826	0.596714	0.0396665	0.0644813
1450	0.553639	1748.26	1.72409	0.596991	0.0407204	0.0667517
1500	0.570143	1778.09	1.73950	0.597946	0.0417653	0.0690516

2500 psi absolute

Superheated vapor at 2500 psi absolute. Coordinates are shown without padded zeros; calculated properties use six significant figures.
T (°F)	v (ft³/lb)	h (BTU/lb)	s (BTU/(lb·°F))	cₚ (BTU/(lb·°F))	μ (cP)	λ (BTU/(hr·ft·°F))
700	0.168474	1176.27	1.30711	1.85580	0.0243426	0.0600262
750	0.203259	1248.91	1.36853	1.19325	0.0253560	0.0516750
800	0.229479	1301.97	1.41154	0.958371	0.0265166	0.0492253
850	0.251739	1346.55	1.44627	0.836473	0.0276973	0.0486160
900	0.271653	1386.41	1.47614	0.763282	0.0288720	0.0489106
950	0.290011	1423.31	1.50279	0.715804	0.0300337	0.0497468
1000	0.307263	1458.24	1.52715	0.683516	0.0311809	0.0509462
1050	0.323690	1491.82	1.54977	0.660856	0.0323138	0.0524063
1100	0.339482	1524.43	1.57103	0.644610	0.0334331	0.0540624
1150	0.354768	1556.35	1.59117	0.632813	0.0345398	0.0558703
1200	0.369646	1587.77	1.61039	0.624207	0.0356347	0.0577983
1250	0.384186	1618.81	1.62882	0.617965	0.0367186	0.0598218
1300	0.398445	1649.59	1.64657	0.613521	0.0377921	0.0619184
1350	0.412466	1680.19	1.66371	0.610481	0.0388558	0.0640958
1400	0.426283	1710.66	1.68032	0.608566	0.0399101	0.0663256
1450	0.439925	1741.06	1.69645	0.607570	0.0409554	0.0685987
1500	0.453450	1771.40	1.71212	0.607511	0.0419920	0.0709070

3000 psi absolute

Superheated vapor at 3000 psi absolute. Coordinates are shown without padded zeros; calculated properties use six significant figures.
T (°F)	v (ft³/lb)	h (BTU/lb)	s (BTU/(lb·°F))	cₚ (BTU/(lb·°F))	μ (cP)	λ (BTU/(hr·ft·°F))
700	0.0983595	1059.79	1.19595	6.37663	0.0273071	0.117539
750	0.148391	1196.45	1.31181	1.66964	0.0263617	0.0632071
800	0.175985	1265.17	1.36755	1.16990	0.0272080	0.0557984
850	0.197698	1317.89	1.40861	0.961926	0.0282559	0.0533195
900	0.216384	1362.87	1.44234	0.847519	0.0293565	0.0526451
950	0.233202	1403.35	1.47158	0.776847	0.0304700	0.0528982
1000	0.248750	1440.95	1.49780	0.730108	0.0315823	0.0537160
1050	0.263379	1476.60	1.52181	0.697763	0.0326881	0.0549140
1100	0.277312	1510.88	1.54415	0.674669	0.0337852	0.0563848
1150	0.290703	1544.17	1.56517	0.657824	0.0348729	0.0580600
1200	0.303659	1576.74	1.58509	0.645377	0.0359511	0.0598925
1250	0.316260	1608.76	1.60410	0.636129	0.0370201	0.0618473
1300	0.328566	1640.39	1.62234	0.629283	0.0380800	0.0638930
1350	0.340625	1671.72	1.63989	0.624287	0.0391311	0.0660437
1400	0.352474	1702.84	1.65686	0.620755	0.0401737	0.0682582
1450	0.364143	1733.82	1.67329	0.618409	0.0412081	0.0705250
1500	0.375681	1764.69	1.68923	0.617292	0.0422344	0.0728341

Generated with iapws-if97@2.8.0 from independent equation evaluations. No interpolation or hand-copied values. Methodology and verification.

How to use this table

Select a temperature to open its pressure–temperature pair in the calculator. Liquid and two-phase grid points are omitted. Pressures are absolute. Use the calculator for gauge setpoints or unlisted states.

Reading the properties

Entropy and heat capacity use BTU/(lb·°F), viscosity uses cP, and thermal conductivity uses BTU/(hr·ft·°F). US tables use their own psia and °F grids. Each state is calculated independently with IAPWS-IF97; properties are converted before rounding to six significant figures. Open a state in the calculator for more display precision.