Table below provides pressure-temperature ratings and chart for ASTM B148 Alloy C95400 flanges. Ratings include from class 150 to class 2500.
| Service Temperature °C |
Pressure, bar | |||||
|---|---|---|---|---|---|---|
| Class 150 | Class 300 | Class 600 | Class 900 | Class 1500 | Class 2500 | |
| -29 to 38 | 16.3 | 42.6 | 85.2 | 127.7 | 212.9 | 354.9 |
| 65 | 15.5 | 40.5 | 81.1 | 121.6 | 202.6 | 337.7 |
| 100 | 15.2 | 39.7 | 79.4 | 119.1 | 198.5 | 330.9 |
| 125 | 15.1 | 39.5 | 79.0 | 118.5 | 197.5 | 329.1 |
| 150 | 15.1 | 39.5 | 79.0 | 118.5 | 197.5 | 329.1 |
| 175 | 15.1 | 39.5 | 79.0 | 118.5 | 197.5 | 329.1 |
| 200 | 13.8 | 39.5 | 79.0 | 118.5 | 197.5 | 329.1 |
| 225 | 13.0 | 39.5 | 79.0 | 118.5 | 197.5 | 329.1 |
| 250 | 12.1 | 34.5 | 69.3 | 103.9 | 173.1 | 288.6 |
| 275 | 11.2 | 29.3 | 58.6 | 87.8 | 146.4 | 244.0 |
| 300 | 8.9 | 23.2 | 46.5 | 69.7 | 116.2 | 193.7 |
| 325 | 7.0 | 19.1 | 36.3 | 54.4 | 90.7 | 151.1 |