Superheated Steam Table — 0.1 bar (0.01 MPa)
Specific volume, internal energy, enthalpy, entropy, density and isobaric specific heat of superheated steam at 0.1 bar (0.01 MPa), computed from IAPWS-IF97 — the same formulation the SimuPipe solver uses. Rows run from the saturation temperature (45.81 °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) |
|---|---|---|---|---|---|---|
| 45.81Sat. | 14.6706 | 0.0682 | 2437.2 | 2583.9 | 8.1489 | 1.9413 |
| 60 | 15.3353 | 0.0652 | 2457.8 | 2611.2 | 8.2326 | 1.9124 |
| 80 | 16.2674 | 0.0615 | 2486.7 | 2649.3 | 8.3438 | 1.9051 |
| 100 | 17.1967 | 0.0582 | 2515.5 | 2687.4 | 8.4488 | 1.9057 |
| 120 | 18.1243 | 0.0552 | 2544.3 | 2725.6 | 8.5484 | 1.9098 |
| 140 | 19.0507 | 0.0525 | 2573.3 | 2763.8 | 8.6433 | 1.9163 |
| 160 | 19.9763 | 0.0501 | 2602.5 | 2802.2 | 8.7340 | 1.9243 |
| 180 | 20.9013 | 0.0478 | 2631.8 | 2840.8 | 8.8211 | 1.9336 |
| 200 | 21.8260 | 0.0458 | 2661.3 | 2879.6 | 8.9048 | 1.9436 |
| 220 | 22.7504 | 0.0440 | 2691.1 | 2918.6 | 8.9855 | 1.9543 |
| 240 | 23.6745 | 0.0422 | 2721.0 | 2957.8 | 9.0634 | 1.9654 |
| 260 | 24.5985 | 0.0407 | 2751.2 | 2997.2 | 9.1388 | 1.9769 |
| 280 | 25.5223 | 0.0392 | 2781.6 | 3036.8 | 9.2118 | 1.9887 |
| 300 | 26.4460 | 0.0378 | 2812.3 | 3076.7 | 9.2827 | 2.0007 |
| 320 | 27.3696 | 0.0365 | 2843.2 | 3116.9 | 9.3515 | 2.0130 |
| 340 | 28.2932 | 0.0353 | 2874.3 | 3157.3 | 9.4185 | 2.0255 |
| 360 | 29.2167 | 0.0342 | 2905.7 | 3197.9 | 9.4837 | 2.0382 |
| 380 | 30.1402 | 0.0332 | 2937.4 | 3238.8 | 9.5473 | 2.0510 |
| 400 | 31.0636 | 0.0322 | 2969.3 | 3279.9 | 9.6093 | 2.0641 |
| 420 | 31.9870 | 0.0313 | 3001.5 | 3321.3 | 9.6699 | 2.0772 |
| 440 | 32.9103 | 0.0304 | 3033.9 | 3363.0 | 9.7292 | 2.0905 |
| 460 | 33.8336 | 0.0296 | 3066.6 | 3405.0 | 9.7872 | 2.1040 |
| 480 | 34.7569 | 0.0288 | 3099.6 | 3447.2 | 9.8440 | 2.1175 |
| 500 | 35.6802 | 0.0280 | 3132.9 | 3489.7 | 9.8997 | 2.1312 |
| 520 | 36.6034 | 0.0273 | 3166.4 | 3532.4 | 9.9543 | 2.1450 |
| 540 | 37.5267 | 0.0266 | 3200.2 | 3575.5 | 10.0079 | 2.1589 |
| 560 | 38.4499 | 0.0260 | 3234.3 | 3618.8 | 10.0605 | 2.1729 |
| 580 | 39.3731 | 0.0254 | 3268.7 | 3662.4 | 10.1122 | 2.1869 |
| 600 | 40.2963 | 0.0248 | 3303.3 | 3706.3 | 10.1631 | 2.2010 |
| 620 | 41.2195 | 0.0243 | 3338.2 | 3750.4 | 10.2131 | 2.2151 |
| 640 | 42.1426 | 0.0237 | 3373.4 | 3794.9 | 10.2623 | 2.2293 |
| 660 | 43.0658 | 0.0232 | 3408.9 | 3839.6 | 10.3107 | 2.2434 |
| 680 | 43.9890 | 0.0227 | 3444.7 | 3884.6 | 10.3585 | 2.2576 |
| 700 | 44.9121 | 0.0223 | 3480.8 | 3929.9 | 10.4055 | 2.2718 |
| 720 | 45.8352 | 0.0218 | 3517.1 | 3975.5 | 10.4519 | 2.2859 |
| 740 | 46.7584 | 0.0214 | 3553.8 | 4021.3 | 10.4976 | 2.3001 |
| 760 | 47.6815 | 0.0210 | 3590.7 | 4067.5 | 10.5427 | 2.3142 |
| 780 | 48.6046 | 0.0206 | 3627.9 | 4113.9 | 10.5872 | 2.3283 |
| 800 | 49.5278 | 0.0202 | 3665.3 | 4160.6 | 10.6311 | 2.3424 |
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 0.1 bar (0.01 MPa) that pressure term is worth 495.3 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 45.81 °C. Below that temperature at 0.1 bar (0.01 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.