Saturated Steam - Properties - Imperial Units (2025)

Table of Contents
Steam table with sensible, latent and total heat, and specific volume at different gauge pressures and temperatures. Example - Boiling Water at 212 oF and 0 psig Related Topics Flash Steam Sizing of Steam and Condensate Pipes Steam and Condensate Thermodynamics Related Documents Condensate Pipes - Flash Steam Generated Condensation of Steam - Heat Transfer Evaporation from a Water Surface Evaporative Cooling Flash Steam Energy Loss Flash Steam Generation - Fundamental Physics Flash Steam Generation - Imperial Units (psig) Flash Steam Generation - SI-units Heating Water by Injecting Steam Latent Heat Flow Properties of Saturated Steam - SI Units Saturated Steam - Properties - Imperial Units Saturated Steam - Properties - Imperial Units Saturated Steam - Properties for Pressure in Bar Sizing Steam Pipes (lb/h) Steam - Viscosity vs. Pressure Steam and Vapor Enthalpy Steam Boiler Shells - Stress vs. Boiler Pressure Steam Entropy Steam Heating Air Steam Heating Systems - Classifications Steam Heating Systems - Design Steam Pipes - Online Pressure drop Calculator Steam Pipes - Pressure Drop vs. Steam Flow Steam Trap Selection Guide STP - Standard Temperature and Pressure and NTP - Normal Temperature and Pressure Superheated Steam - Enthalpy Vapor and Steam Water - Enthalpy and Entropy vs. Temperature Water - Saturation Pressure and Specific Weight vs. Temperature Water - Specific Volume vs. Temperature Water - Thermophysical Properties Water-Steam Mollier Diagram Wet Steam - Enthalpy Wet Steam - Quality vs. Dryness Fractions Search Engineering ToolBox - SketchUp Extension - Online 3D modeling! Translate this Page Privacy Policy Advertise in the ToolBox Citation References

Steam table with sensible, latent and total heat, and specific volume at different gauge pressures and temperatures.

Sensible, latent and total heat in evaporated water - steam - at different gauge pressures and boiling temperatures.

Saturated Steam - Properties - Imperial Units (1)

  • Properties of Saturated Steam - SI Units
  • Sizing steam pipes vs. pressure and velocity
Saturated Steam - Properties vs. Pressure - psi
Gauge Pressure
(psig)
Temperature
(oF)
Specific Volume Saturated Vapor
(ft3/lb)
Enthalpy
Saturated Liquid
(Btu/lb)
Evaporated
(Btu/lb)
Saturated Vapor
(Btu/lb)
25
(Inches Mercury Vacuum)
13414210210171119
20
(Inches Mercury Vacuum)
16273.912910011130
15
(Inches Mercury Vacuum)
17951.31479901137
10
(Inches Mercury Vacuum)
19239.41609821142
5
(Inches Mercury Vacuum)
20331.81719761147
0 1)21226.81809701150
121525.21839681151
221923.51879661153
322222.31909641154
422421.41929621154
522720.11959601155
623019.41989591157
723218.72009571157
823318.42019561157
923717.12059541159
1023916.52079531160
1224415.32129491161
1424814.32169471163
1625213.42209441164
1825612.62249411165
2025911.92279391166
2226211.32309371167
2426510.82339341167
2626810.32369331169
282719.852399301169
302749.462439291172
322779.12469271173
342798.752489251173
362828.422519231174
382848.082539221175
402867.822569201176
422897.572589181176
442917.312609171177
462937.142629151177
482956.942649141178
502986.682679121179
553006.272719091180
603075.842779061183
653125.492829011183
703165.182868981184
753204.912908951185
803244.672948911185
853284.442988891187
903314.243028861188
953354.053058831188
1003383.893098801189
1053413.743128781190
1103443.593168751191
1153473.463198731192
1203503.343228711193
1253533.233258681193
1303563.123288661194
1353583.023308641194
1403612.923338611194
1453632.843368591195
1503662.743398571196
1553682.683418551196
1603712.63448531197
1653732.543468511197
1703752.473488491197
1753772.413518471198
1803802.353538451198
1853822.293558431198
1903842.243588411199
1953862.193608391199
2003882.143628371199
2053902.093648361200
2103922.053668341200
21539423688321200
2203961.963708301200
2253971.923728281200
2303991.893748271201
2354011.853768251201
2404031.813788231201
2454041.783808221202
2504061.753828201202
2554081.723838191202
2604091.693858171202
2654111.663878151202
2704131.633898141203
2754141.63918121203
2804161.573928111203
2854171.553948091203
2904181.533958081203
2954201.493978061203
3004211.473988051203
3054231.454008031203
3104251.434028021204
3154261.414048001204
3204271.384057991204
3254291.364077971204
3304301.344087961204
3354321.334107941204
3404331.314117931204
3454341.294137911204
3504351.284147901204
3554371.264167891205
3604381.244177881205
3654401.224197861205
3704411.24207851205
3754421.194217841205
3804431.184227831205
3854451.164247811205
3904461.144257801205
3954471.134277781205
4004481.124287771205
45046014397661205
5004700.894537511204
5504790.824647401204
6004890.744757281203
6504970.694837191202
7005050.644917101201
7505130.65046961200
8005200.565126861198
9005340.495296661195
10005460.445446471191
12505740.345806001180
15005970.276105571167
17506180.226425091151
20006360.196724621134
22506540.167014131114
25006690.137333581091
27506830.117642951059
30006960.088042131017
3206.22)705.40----

1) Atmospheric pressure is used for the table except for 2)

2) Critical Point - At 3206.2 psia and 705.40 oF the vapor and liquid are indistinguishable. No change of state occurs when pressure increases above the critical point or when heat is added. At the critical point it is no longer referred to water or steam and it is not possible keep the water and steam apart.

  • 1 psi (lbf/in2) = 6894.8 Pa (N/m2) = 0.06895 bar
  • Properties of Saturated Steam - SI Units

Note! Gauge Pressure = Absolute Pressure - Atmospheric Pressure

NTP - Normal Temperature and Pressure - is defined as 20oC (293.15 K, 68oF) and 1 atm ( 101.325 kN/m2, 101.325 kPa, 14.7 psia, 0 psig, 30 in Hg, 760 torr)

  • Vacuum steam is the general term used for saturated steam at temperatures below 100°C.

Example - Boiling Water at 212 oF and 0 psig

At atmospheric pressure - 0 psig - water boils at 212 oF. 180 Btu/lb of energy is required to heat 1 lb of water to saturation temperature 212 oF.

Therefore, at 0 psig and 212 oF - the specific enthalpy of water is 180 Btu/lb.

Another 970 Btu/lb of energy is required to evaporate the 1 lb of water at212 oF to steam at 212 oF. Therefore, at 0 psig - the specific enthalpy of evaporation is 970 Btu/lb.

The total specific enthalpy of the steam (or heat required to evaporate water to steam) at atmospheric pressure and212 oF can be summarized to

hs = (180 Btu/lb) + ( 970 Btu/lb)

= 1150 Btu/lb

Saturated Steam - Properties - Imperial Units (2)

Related Topics

  • Flash Steam

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  • Sizing of Steam and Condensate Pipes

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  • Steam and Condensate

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Saturated Steam - Properties - Imperial Units (2025)

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