Properties of steam

From ASHRAE 1989, with permission

Pressure, psia

Saturation temp.,
°F

Specific volume, ft3/lbm

Internal energy,
Btu/lbm

Enthalpy,
Btu/lbm

Entropy,
Btu/(lbm · °R)

Sat. liquid

Sat. vapor

Sat. liquid

Evap.

Sat. vapor

Sat. liquid

Evap.

Sat. vapor

Sat. liquid

Evap.

Sat. vapor

p Tsat vf vg uf ufg ug hf hfg hg sf sfg sg

0.08866

32.018

0.016022

3302

0.00

1021.2

1021.2

0.01

1075.4

1075.4

0

2.1869

2.1869

0.09992

35

0.016021

2948

2.99

1019.2

1022.2

3.00

1073.7

1076.7

0.00607

2.1704

2.1764

0.12166

40

0.016020

2445

8.02

1015.8

1023.9

8.02

1070.9

1078.9

0.01617

2.1430

2.1592

0.14748

45

0.016021

2037

13.04

1012.5

1025.5

13.04

1068.1

1081.1

0.02618

2.1162

2.1423

0.17803

50

0.016024

1704.2

18.06

1009.1

1027.2

18.06

1065.2

1083.3

0.03607

2.0899

2.1259

0.2563

60

0.016035

1206.9

28.08

1002.4

1030.4

28.08

1059.6

1087.7

0.05555

2.0388

2.0943

0.3632

70

0.016051

867.7

38.09

995.6

1033.7

38.09

1054.0

1092.0

0.07463

1.9896

2.0642

0.5073

80

0.016073

632.8

48.08

988.9

1037.0

48.09

1048.3

1096.4

0.09332

1.9423

2.0356

0.6988

90

0.016099

467.7

58.07

982.2

1040.2

58.07

1042.7

1100.7

0.11165

1.8966

2.0083

0.9503

100

0.016130

350.0

68.04

975.4

1043.5

68.05

1037.0

1105.0

0.12963

1.8526

1.9822

1

101.70

0.016136

333.6

69.74

974.3

1044.0

69.74

1036.0

1105.8

0.13266

1.8453

1.9779

2

126.04

0.016230

173.75

94.02

957.8

1051.8

94.02

1022.1

1116.1

0.17499

1.7448

1.9198

3

141.43

0.016300

118.72

109.38

947.2

1056.6

109.39

1013.1

1122.5

0.20089

1.6852

1.8861

4

152.93

0.016358

90.64

120.88

939.3

1060.2

120.89

1006.4

1127.3

0.21983

1.6426

1.8624

5

162.21

0.016407

73.53

130.15

932.9

1063.0

130.17

1000.9

1131.0

0.23486

1.6093

1.8441

6

170.03

0.016451

61.98

137.98

927.4

1065.4

138.00

996.2

1134.2

0.24736

1.5819

1.8292

8

192.84

0.016526

47.35

150.81

918.4

1069.2

150.84

988.4

1139.3

0.26754

1.5383

1.8058

10

193.19

0.016590

38.42

161.20

911.0

1072.2

161.23

982.1

1143.3

0.28358

1.5041

1.7877

14.696

211.99

0.016715

26.80

180.10

897.5

1077.6

180.15

970.4

1150.5

0.31212

1.4446

1.7567

15

213.03

0.016723

26.29

181.14

896.8

1077.9

181.19

969.7

1150.9

0.31367

1.4414

1.7551

Pressure, psia

Saturation temp.,
°F

Specific volume, ft3/lbm

Internal energy,
Btu/lbm

Enthalpy,
Btu/lbm

Entropy,
Btu/(lbm · °R)

Sat. liquid

Sat. vapor

Sat. liquid

Evap.

Sat. vapor

Sat. liquid

Evap.

Sat. vapor

Sat. liquid

Evap.

Sat. vapor

20

227.96

0.016830

20.09

196.19

885.8

1082.0

196.26

960.1

1156.4

0.33580

1.3962

1.7320

25

240.08

0.016922

16.306

208.44

876.9

1085.3

208.52

952.2

1160.7

0.35345

1.3607

1.7142

30

250.34

0.017004

13.748

218.84

869.2

1088.0

218.93

945.4

1164.3

0.36821

1.3314

1.6996

35

259.30

0.017073

11.900

227.93

862.4

1090.3

228.04

939.3

1167.4

0.38093

1.3064

1.6873

40

267.26

0.017146

10.501

236.03

856.2

1092.3

236.16

933.8

1170.0

0.39214

1.2845

1.6767

45

274.46

0.017209

9.403

243.37

850.7

1094.0

243.51

928.8

1172.3

0.40218

1.2651

1.6673

50

281.03

0.017269

8.518

250.08

845.5

1095.6

250.24

924.2

1174.4

0.41129

1.2476

1.6589

55

287.10

0.017325

7.789

256.28

840.8

1097.0

256.46

919.9

1176.3

0.41963

1.2317

1.6513

60

292.73

0.017378

7.177

262.06

836.3

1098.3

262.25

915.8

1178.0

0.42733

1.2170

1.6444

65

298.00

0.017429

6.657

267.46

832.1

1099.5

267.67

911.9

1179.6

0.43450

1.2035

1.6380

70

302.96

0.017478

6.209

272.56

828.1

1100.6

272.79

908.3

1181.0

0.44120

1.1909

1.6321

75

307.63

0.017524

5.818

277.37

824.3

1101.6

277.61

904.8

1182.4

0.44749

1.1790

1.6265

80

312.07

0.017570

5.474

281.95

820.6

1102.6

282.21

901.4

1183.6

0.45344

1.1679

1.6214

85

316.29

0.017613

5.170

286.30

817.1

1103.5

286.58

898.2

1184.8

0.45907

1.1574

1.6165

90

320.31

0.017655

4.898

290.46

813.8

1104.3

290.76

895.1

1185.9

0.46442

1.1475

1.6119

95

324.16

0.017696

4.654

294.45

810.6

1105.0

294.76

892.1

1186.9

0.46952

1.1380

1.6076

100

327.86

0.017736

4.434

298.28

807.5

1105.8

298.61

889.2

1187.8

0.47439

1.1290

1.6034

110

334.82

0.017813

4.051

305.52

801.6

1107.1

305.88

883.7

1189.6

0.48355

1.1122

1.5957

120

341.30

0.017886

3.730

312.27

796.0

1108.3

312.67

878.5

1191.1

0.49201

1.0966

1.5886

130

347.37

0.017957

3.457

318.61

790.7

1109.4

319.04

873.5

1192.5

0.49989

1.0822

1.5821

140

353.08

0.018024

3.221

324.58

785.7

1110.3

325.05

868.7

1193.8

0.50727

1.0688

1.5761

150

358.48

0.018089

3.016

330.24

781.0

1111.2

330.75

864.2

1194.9

0.51422

1.0562

1.5704