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Carbon Steel Flanges - Pressure
and Temperature Ratings
Maximum temperature and pressure ratings
of flanges conforming dimensions ASME B16.5 Pipe Flanges and Flanged
Fittings - and materials specification ASTM A-105 Specification
for Carbon Steel Forgings for Piping Applications - temperature
in Fahrenheit and pressure in psi.
| Gage
Pressure (psi) |
|
Temperature
(oF)
|
Flange Class
|
|
150
|
300
|
400
|
600
|
900
|
1500
|
2500
|
|
< 100
|
285
|
740
|
990
|
1480
|
2220
|
3705
|
6170
|
|
200
|
260
|
675
|
900
|
1350
|
2025
|
3375
|
5625
|
|
300
|
230
|
655
|
875
|
1315
|
1970
|
3280
|
5470
|
|
400
|
200
|
635
|
845
|
1270
|
1900
|
3170
|
5280
|
|
500
|
170
|
600
|
800
|
1200
|
1795
|
2995
|
4990
|
|
600
|
140
|
550
|
730
|
1095
|
1640
|
2735
|
4560
|
|
650
|
125
|
535
|
715
|
1075
|
1610
|
2685
|
4475
|
|
700
|
110
|
535
|
710
|
1065
|
1600
|
2665
|
4440
|
|
750
|
95
|
505
|
670
|
1010
|
1510
|
2520
|
4200
|
|
800
|
80
|
410
|
550
|
825
|
1235
|
2060
|
3430
|
|
850
|
65
|
270
|
355
|
535
|
805
|
1340
|
2230
|
|
900
|
50
|
170
|
230
|
345
|
515
|
860
|
1430
|
|
950
|
35
|
105
|
140
|
205
|
310
|
515
|
860
|
|
1000
|
20
|
50
|
70
|
105
|
155
|
260
|
430
|
|
