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Steam Table Calculator
Saturated & Superheated Steam Properties — SI Units — Pressure in bara
IAPWS-IF97 Saturated Water Superheated Steam Pressure: bara SI Units
INPUT โ€” SATURATION PRESSURE
Absolute Pressure
bara
Range: 0.00611 bara (triple point, 0.01ยฐC) to 220.64 bara (critical point, 374.14ยฐC)
๐Ÿ“ Property Definitions
v = specific volume  [mยณ/kg]
h = specific enthalpy  [kJ/kg]
s = specific entropy  [kJ/kgยทK]
subscript f = saturated liquid
subscript g = saturated vapour
subscript fg = evaporation (g โˆ’ f)
Source: Saturated water/steam tables (IAPWS-IF97) | 1 bara = 100 kPa
INTERMEDIATE / INTERPOLATION
Enter a saturation pressure and click Lookup Properties. Linear interpolation is applied automatically between table entries.
Wet steam quality: For a wet mixture at quality x:
h = hf + xยทhfg  |  s = sf + xยทsfg  |  v = vf + xยทvfg
INPUT โ€” SATURATION TEMPERATURE
Saturation Temperature
ยฐC
Range: 0.01ยฐC (triple point) to 374.14ยฐC (critical point, 220.64 bara)
๐Ÿ“ Quick Reference โ€” Common Process Conditions
1.01325 bara โ†’ 100.0ยฐC (atmospheric)
3.0 bara โ†’ ~133.5ยฐC
6.0 bara โ†’ ~158.8ยฐC
10.0 bara โ†’ ~179.9ยฐC
16.0 bara โ†’ ~201.4ยฐC
40.0 bara โ†’ ~250.4ยฐC
1 bara = 100 kPa = 0.9869 atm | 1 kJ/kg = 0.4299 BTU/lb
INTERMEDIATE / INTERPOLATION
Enter a saturation temperature and click Lookup Properties. Linear interpolation is applied automatically.
Wet steam quality: For a wet mixture at quality x:
h = hf + xยทhfg  |  s = sf + xยทsfg  |  v = vf + xยทvfg
INPUT โ€” SUPERHEATED STEAM
Steam Pressure
bara
Range: 0.00611 to 300 bara  |  Pressure grid: 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 1.0, 1.5, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0, 9.0, 10, 12.5, 15, 17.5, 20, 25, 30, 35, 40, 50, 60, 70, 80, 90, 100, 125, 150, 175, 200, 225, 250, 275, 300
โ€”
Steam Temperature
ยฐC
Must be โ‰ฅ Tsat at given pressure  |  Table range: up to 1300ยฐC
๐Ÿ“ Superheated Steam โ€” Interpolation Method
Bilinear interpolation over P and T
Step 1: interpolate over T at Plow โ†’ ฯ†1
Step 2: interpolate over T at Phigh โ†’ ฯ†2
Step 3: interpolate ฯ†1, ฯ†2 over P โ†’ ฯ†

Properties: v [mยณ/kg]   h [kJ/kg]   s [kJ/kgยทK]
Source: Superheated steam tables (IAPWS-IF97) | Tsh = T โˆ’ Tsat
INTERMEDIATE / INTERPOLATION
Enter pressure and temperature, then click Lookup Properties. Bilinear interpolation over pressure and temperature is applied automatically.
Superheated steam note: Above Tsat, steam is superheated โ€” no liquid phase exists. Degree of superheat Tsh = T โˆ’ Tsat.

Enthalpy of superheating: ฮ”h = hsuperheated โˆ’ hg(sat)