Superheated Steam Table — 200 bar (20 MPa)
Specific volume, internal energy, enthalpy, entropy, density and isobaric specific heat of superheated steam at 200 bar (20 MPa), computed from IAPWS-IF97 — the same formulation the SimuPipe solver uses. Rows run from the saturation temperature (365.75 °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) |
|---|---|---|---|---|---|---|
| 365.75Sat. | 5.9369e-3 | 168.4394 | 2302.9 | 2421.7 | 4.9460 | 32.7296 |
| 380 | 8.2578e-3 | 121.0977 | 2494.0 | 2659.2 | 5.3144 | 10.2212 |
| 400 | 9.9496e-3 | 100.5067 | 2617.8 | 2816.8 | 5.5525 | 6.3601 |
| 420 | 0.011199 | 89.2902 | 2704.5 | 2928.5 | 5.7160 | 4.9820 |
| 440 | 0.012246 | 81.6599 | 2775.3 | 3020.3 | 5.8466 | 4.2568 |
| 460 | 0.013170 | 75.9306 | 2837.2 | 3100.6 | 5.9577 | 3.8056 |
| 480 | 0.014011 | 71.3712 | 2893.2 | 3173.4 | 6.0558 | 3.5010 |
| 500 | 0.014793 | 67.5998 | 2945.3 | 3241.2 | 6.1445 | 3.2845 |
| 520 | 0.015530 | 64.3933 | 2994.6 | 3305.2 | 6.2263 | 3.1251 |
| 540 | 0.016231 | 61.6107 | 3041.8 | 3366.4 | 6.3026 | 3.0046 |
| 560 | 0.016904 | 59.1575 | 3087.5 | 3425.6 | 6.3744 | 2.9116 |
| 580 | 0.017554 | 56.9674 | 3132.0 | 3483.0 | 6.4426 | 2.8389 |
| 600 | 0.018184 | 54.9922 | 3175.5 | 3539.2 | 6.5077 | 2.7812 |
| 620 | 0.018799 | 53.1956 | 3218.4 | 3594.4 | 6.5701 | 2.7352 |
| 640 | 0.019399 | 51.5498 | 3260.7 | 3648.7 | 6.6303 | 2.6982 |
| 660 | 0.019987 | 50.0330 | 3302.6 | 3702.3 | 6.6884 | 2.6683 |
| 680 | 0.020564 | 48.6278 | 3344.2 | 3755.5 | 6.7447 | 2.6443 |
| 700 | 0.021133 | 47.3200 | 3385.5 | 3808.2 | 6.7994 | 2.6251 |
| 720 | 0.021693 | 46.0981 | 3426.6 | 3860.5 | 6.8527 | 2.6098 |
| 740 | 0.022246 | 44.9523 | 3467.7 | 3912.6 | 6.9046 | 2.5979 |
| 760 | 0.022792 | 43.8744 | 3508.6 | 3964.4 | 6.9553 | 2.5887 |
| 780 | 0.023333 | 42.8577 | 3549.5 | 4016.1 | 7.0048 | 2.5821 |
| 800 | 0.023869 | 41.8962 | 3590.4 | 4067.7 | 7.0534 | 2.5775 |
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 200 bar (20 MPa) that pressure term is worth 477.4 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 365.75 °C. Below that temperature at 200 bar (20 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.