Superheated Vapor Properties for Steam (0.5 MPa - 1.4 MPa)
P=0.50 MPa (151.8°C)

Temp

volume

energy

enthalpy

entropy

°C

v(m^3/kg)

u(kJ/kg)

h(kJ/kg)

s(kJ/kg.K)

Sat.

0.3748

2560.7

2748.1

6.821

200

0.4250

2643.3

2855.8

7.061

250

0.4744

2723.8

2961.0

7.272

300

0.5226

2803.2

3064.6

7.461

350

0.5702

2883.0

3168.1

7.635

400

0.6173

2963.7

3272.3

7.796

450

0.6642

3045.6

3377.7

7.947

500

0.7109

3129.0

3484.5

8.089

600

0.8041

3300.4

3702.5

8.354

700

0.8970

3478.5

3927.0

8.598

800

0.9897

3663.6

4158.4

8.824

900

1.0823

3855.4

4396.6

9.036

1000

1.1748

4054.0

4641.4

9.236

P=0.60 MPa (158.8°C)

volume

energy

enthalpy

entropy

v(m^3/kg)

u(kJ/kg)

h(kJ/kg)

s(kJ/kg.K)

0.3156

2566.8

2756.1

6.759

0.3521

2639.3

2850.6

6.968

0.3939

2721.2

2957.6

7.183

0.4344

2801.4

3062.0

7.374

0.4743

2881.6

3166.1

7.548

0.5137

2962.5

3270.8

7.710

0.5530

3044.7

3376.5

7.861

0.5920

3128.2

3483.4

8.004

0.6698

3299.8

3701.7

8.270

0.7473

3478.1

3926.4

8.513

0.8246

3663.2

4157.9

8.740

0.9018

3855.1

4396.2

8.952

0.9789

4053.7

4641.1

9.152

P=0.80 MPa (170.4°C)

volume

energy

enthalpy

entropy

v(m^3/kg)

u(kJ/kg)

h(kJ/kg)

s(kJ/kg.K)

0.2403

2576.0

2768.3

6.662

0.2609

2631.0

2839.7

6.818

0.2932

2715.9

2950.4

7.040

0.3242

2797.5

3056.9

7.235

0.3544

2878.6

3162.2

7.411

0.3843

2960.2

3267.6

7.573

0.4139

3042.8

3373.9

7.726

0.4433

3126.6

3481.3

7.869

0.5019

3298.7

3700.1

8.135

0.5601

3477.2

3925.3

8.379

0.6182

3662.4

4157.0

8.606

0.6762

3854.5

4395.5

8.819

0.7341

4053.2

4640.5

9.019

P=1.00 MPa (179.9°C)

Temp

volume

energy

enthalpy

entropy

°C

v(m^3/kg)

u(kJ/kg)

h(kJ/kg)

s(kJ/kg.K)

Sat.

0.1944

2582.7

2777.1

6.585

200

0.2060

2622.2

2828.3

6.696

250

0.2328

2710.4

2943.1

6.927

300

0.2580

2793.6

3051.6

7.125

350

0.2825

2875.7

3158.2

7.303

400

0.3066

2957.9

3264.5

7.467

450

0.3305

3040.9

3371.3

7.620

500

0.3541

3125.0

3479.1

7.764

600

0.4011

3297.5

3698.6

8.031

700

0.4478

3476.2

3924.1

8.276

800

0.4944

3661.7

4156.1

8.502

900

0.5408

3853.9

4394.8

8.715

1000

0.5872

4052.7

4639.9

8.916

P=1.20 MPa (188.0°C)

volume

energy

enthalpy

entropy

v(m^3/kg)

u(kJ/kg)

h(kJ/kg)

s(kJ/kg.K)

0.1633

2587.8

2783.7

6.522

0.1693

2612.9

2816.1

6.591

0.1924

2704.7

2935.6

6.831

0.2139

2789.7

3046.3

7.034

0.2346

2872.7

3154.2

7.214

0.2548

2955.5

3261.3

7.379

0.2748

3038.9

3368.7

7.533

0.2946

3123.4

3476.9

7.678

0.3339

3296.3

3697.0

7.946

0.3730

3475.3

3922.9

8.190

0.4118

3661.0

4155.2

8.418

0.4506

3853.3

4394.0

8.630

0.4893

4052.2

4639.4

8.831

P=1.40 MPa (195.0°C)

volume

energy

enthalpy

entropy

v(m^3/kg)

u(kJ/kg)

h(kJ/kg)

s(kJ/kg.K)

0.1408

2591.8

2788.8

6.468

0.1430

2602.7

2803.0

6.498

0.1636

2698.9

2927.9

6.749

0.1823

2785.7

3040.9

6.955

0.2003

2869.7

3150.1

7.138

0.2178

2953.1

3258.1

7.305

0.2351

3037.0

3366.1

7.459

0.2522

3121.8

3474.8

7.605

0.2860

3295.1

3695.4

7.873

0.3195

3474.4

3921.7

8.118

0.3529

3660.2

4154.3

8.346

0.3861

3852.7

4393.3

8.559

0.4193

4051.7

4638.8

8.759

Source of data: NIST Chemistry WebBook - accessed Jan 2008