Latent heat
hfg = hg - hf
Energy added during vaporization at saturation
Steam table lookup
Superheated Steam Table
Look up superheated steam properties by pressure and temperature for turbine checks, Rankine cycle calculations, power engineering, and thermodynamics reference.
Instant property lookup
Enter pressure and temperature
The closest available superheated steam row is returned from the compact table.
Lookup result
Reference table
Superheated steam properties
| Pressure (kPa) | Temperature (°C) | Specific Volume v (m3/kg) | Enthalpy h (kJ/kg) | Entropy s (kJ/kg·K) |
|---|---|---|---|---|
| 101.33 | 150 | 1.673 | 2776 | 7.358 |
| 101.33 | 200 | 2.028 | 2850 | 7.823 |
| 500 | 300 | 0.462 | 3050 | 6.845 |
| 1000 | 400 | 0.235 | 3200 | 6.412 |
Formulas
Steam property relationships
Steam quality
h = hf + x hfg
x is dry fraction in a saturated mixture
Superheated steam tables are used for turbine inlet states, Rankine cycle analysis, heat exchanger calculations, pipe flow estimates, and power plant performance checks.
Reference
What the steam table values mean
Saturation pressure
The pressure at which liquid water and steam coexist at a given saturation temperature.
Specific volume
Volume occupied per kilogram, used for pipe flow, turbine, compressor, and vessel estimates.
Enthalpy
Energy content per kilogram, used in boiler heat input, turbine work, and condenser calculations.
Entropy
Thermodynamic property used for ideal expansion, irreversibility, and Rankine cycle analysis.
FAQ
Steam table questions
What is superheated steam?
Superheated steam is steam heated above the saturation temperature at a given pressure, so it behaves as dry vapor rather than a saturated mixture.
Why does this lookup return the nearest row?
This compact reference table has sparse pressure-temperature points, so the page reports the closest listed row instead of overstating interpolation accuracy.
Can these values replace formal steam software?
No. Use this page for quick reference and learning. Final design work should use validated steam tables, IAPWS data, and engineering standards.
Related