Saturated Steam Table - Thermodynamic Properties - Saturated Steam (Values To Nearest Even Digits)

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SATURATED STEAM
Thermodynamic Properties – Saturated Steam (Values to Nearest Even Digits)
BTU/lb.
Spec. Vol.
BTU/lb.
Spec. Vol.
Ft 3 /lb
Ft 3 /lb
Heat of
Latent Heat of
Total Heat
Heat of
Latent Heat of
Total Heat
PSIG
°F
Liquid*
Evaporation
of Steam
Sat. Vapor
PSIG
°F
Liquid*
Evaporation
of Steam
Sat. Vapor
0
212
180
970
1150
27
65
312
282
901
1183
5.5
1
216
183
968
1151
25
70
316
286
898
1184
5.2
2
219
187
965
1152
24
75
320
290
895
1185
4.9
3
222
190
964
1154
22.5
80
324
294
892
1186
4.7
4
224
193
962
1155
21.0
85
328
298
889
1187
4.4
5
227
195
961
1156
20.0
90
331
302
886
1188
4.2
6
230
298
959
1157
19.5
95
335
306
883
1189
4.0
7
232
201
957
1158
18.5
100
338
309
881
1190
3.9
8
235
203
956
1159
18.0
110
344
316
876
1192
3.6
9
237
206
954
1160
17.0
120
350
322
871
1193
3.3
10
240
208
952
1160
16.5
125
353
325
868
1193
3.2
15
250
218
945
1163
14.0
130
356
328
866
1194
3.1
20
259
227
940
1167
12.0
140
361
334
861
1195
2.9
25
267
236
934
1170
10.5
150
366
339
857
1196
2.7
30
274
243
929
1172
9.5
160
371
344
853
1197
2.6
35
281
250
924
1174
8.5
170
375
348
849
1197
2.5
40
287
256
920
1176
8.0
180
380
353
845
1198
2.3
45
292
262
915
1177
7.0
190
384
358
841
1199
2.2
50
298
267
912
1179
6.7
200
388
362
837
1199
2.1
55
303
272
908
1180
6.2
220
395
370
830
1200
2.0
60
307
277
905
1182
5.8
240
403
378
823
1201
1.8
250
406
381
820
1201
1.75
* Heat content is the number of BTU/lb needed to reach the condition indicated starting with water at 32°F.
standard atmospheric pressure of 14.7 PSIA, thus PSIG is equal to
Saturated steam is pure steam in direct contact with the liquid water
PSIA minus 14.7 psi.
from which it was generated and at a temperature of water at the
existing pressure. For example, saturated steam at 50 PSIG has a
Latent heat, expressed in BTU per pound, is the amount of heat
temperature of 298°F.
needed (absorbed) to convert a pound of boiling water to a pound of
steam. The same amount of heat is liberated when a pound of steam
Pressure is commonly expressed either (a) PSIA – pounds per square
condenses back to a pound of water. Latent heat varies with
inch absolute or, (b) PSIG – pounds per square inch gauge above
temperature (see table above).

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