Superheated Steam Table — 20 bar (2 MPa)
Specific volume, internal energy, enthalpy, entropy, density and isobaric specific heat of superheated steam at 20 bar (2 MPa), computed from IAPWS-IF97 — the same formulation the SimuPipe solver uses. Rows run from the saturation temperature (212.38 °C) to 800 °C in 20 °C steps.
| T (°C) | v (m³/kg) | ρ (kg/m³) | u (kJ/kg) | h (kJ/kg) | s (kJ/kg·K) | cp (kJ/kg·K) |
|---|---|---|---|---|---|---|
| 212.38Sat. | 0.099581 | 10.0421 | 2599.2 | 2798.4 | 6.3392 | 3.1904 |
| 220 | 0.102167 | 9.7879 | 2617.3 | 2821.7 | 6.3868 | 2.9487 |
| 240 | 0.108488 | 9.2176 | 2660.2 | 2877.2 | 6.4972 | 2.6481 |
| 260 | 0.114400 | 8.7412 | 2699.7 | 2928.5 | 6.5952 | 2.4909 |
| 280 | 0.120046 | 8.3302 | 2737.1 | 2977.2 | 6.6850 | 2.3890 |
| 300 | 0.125501 | 7.9681 | 2773.2 | 3024.3 | 6.7685 | 2.3201 |
| 320 | 0.130816 | 7.6443 | 2808.5 | 3070.2 | 6.8472 | 2.2733 |
| 340 | 0.136023 | 7.3517 | 2843.2 | 3115.3 | 6.9221 | 2.2417 |
| 360 | 0.141147 | 7.0848 | 2877.6 | 3159.9 | 6.9937 | 2.2207 |
| 380 | 0.146205 | 6.8397 | 2911.8 | 3204.2 | 7.0625 | 2.2074 |
| 400 | 0.151208 | 6.6134 | 2945.8 | 3248.2 | 7.1290 | 2.1997 |
| 420 | 0.156167 | 6.4034 | 2979.8 | 3292.2 | 7.1933 | 2.1961 |
| 440 | 0.161088 | 6.2078 | 3013.9 | 3336.1 | 7.2558 | 2.1957 |
| 460 | 0.165978 | 6.0249 | 3048.1 | 3380.0 | 7.3165 | 2.1976 |
| 480 | 0.170841 | 5.8534 | 3082.3 | 3424.0 | 7.3757 | 2.2015 |
| 500 | 0.175680 | 5.6922 | 3116.7 | 3468.1 | 7.4335 | 2.2069 |
| 520 | 0.180499 | 5.5402 | 3151.3 | 3512.3 | 7.4899 | 2.2136 |
| 540 | 0.185300 | 5.3967 | 3186.0 | 3556.6 | 7.5451 | 2.2212 |
| 560 | 0.190085 | 5.2608 | 3221.0 | 3601.2 | 7.5992 | 2.2297 |
| 580 | 0.194856 | 5.1320 | 3256.1 | 3645.8 | 7.6522 | 2.2389 |
| 600 | 0.199614 | 5.0097 | 3291.5 | 3690.7 | 7.7042 | 2.2486 |
| 620 | 0.204362 | 4.8933 | 3327.1 | 3735.8 | 7.7552 | 2.2589 |
| 640 | 0.209099 | 4.7824 | 3362.9 | 3781.1 | 7.8054 | 2.2695 |
| 660 | 0.213827 | 4.6767 | 3398.9 | 3826.6 | 7.8547 | 2.2806 |
| 680 | 0.218547 | 4.5757 | 3435.2 | 3872.3 | 7.9032 | 2.2919 |
| 700 | 0.223260 | 4.4791 | 3471.7 | 3918.2 | 7.9509 | 2.3035 |
| 720 | 0.227966 | 4.3866 | 3508.5 | 3964.4 | 7.9978 | 2.3153 |
| 740 | 0.232667 | 4.2980 | 3545.5 | 4010.9 | 8.0441 | 2.3273 |
| 760 | 0.237361 | 4.2130 | 3582.8 | 4057.5 | 8.0897 | 2.3394 |
| 780 | 0.242051 | 4.1314 | 3620.3 | 4104.4 | 8.1347 | 2.3518 |
| 800 | 0.246737 | 4.0529 | 3658.1 | 4151.6 | 8.1791 | 2.3642 |
u is not tabulated independently. Specific internal energy follows from the enthalpy and specific volume as u = h − p·v, with p in MPa and v in m³/kg (1 MPa·m³/kg = 1000 kJ/kg). At 20 bar (2 MPa) that pressure term is worth 493.5 kJ/kg at 800 °C, so u and h are far apart at high pressure and nearly equal at low pressure — a common source of error when the wrong column is read.
The first row is saturated vapour, at 212.38 °C. Below that temperature at 20 bar (2 MPa) the water is a liquid or a two-phase mixture, and this table does not apply — use the saturated tables instead.
Values are IAPWS-IF97, not interpolated. Every row is evaluated directly from the industrial formulation at that exact temperature, so there is no interpolation error between rows. If you need a temperature between the 20 °C steps, the calculator computes it exactly.