Figure 10-1. Pressure temperature ratings of carbon steel.
TABLE 2-1.1 RATINGS FOR GROUP 1.1 MATERIALS
| A 105(a) | A 515 70(a) | A 675 70 | A672 B70(a) |
| A 216 WBC(a) | A 516 70(a) | A696 Gr.0 | A672 C70(a) |
| A 350 LF2(d) | A 537 Cl.1(d) |
TABLE 2-1.1A Working
Pressure by Classes, psig
| Temperature F | 150 | 300 | 400 | 600 | 900 | 1500 | 2500 | 4500 |
| -20 to 100 | 285 | 740 | 990 | 1.480 | 2.200 | 3.705 | 6.170 | 11.110 |
| 200 | 260 | 675 | 900 | 1.350 | 2.025 | 3.375 | 5.625 | 10.120 |
| 300 | 230 | 655 | 975 | 1.315 | 1.970 | 3.280 | 5.470 | 9.845 |
| 400 | 200 | 635 | 845 | 1.270 | 1.900 | 3.170 | 5.280 | 9.505 |
| 500 | 170 | 600 | 800 | 1.200 | 1.795 | 2.995 | 4.990 | 8.980 |
| 600 | 140 | 550 | 730 | 1.095 | 1.640 | 2.735 | 4.560 | 8.210 |
| 650 | 125 | 535 | 715 | 1.075 | 1.610 | 2.685 | 4.475 | 8.055 |
| 700 | 110 | 535 | 710 | 1.065 | 1.600 | 2.665 | 4.440 | 7.990 |
| 750 | 95 | 505 | 670 | 1.010 | 1.510 | 2.520 | 4.200 | 7.560 |
| 800 | 80 | 410 | 550 | 825 | 1.235 | 2.060 | 3.430 | 6.170 |
| 850 | 65 | 270 | 355 | 535 | 805 | 1.340 | 2.230 | 4.010 |
| 900 | 50 | 170 | 230 | 345 | 515 | 860 | 1.430 | 2.570 |
| 950 | 35 | 105 | 140 | 205 | 310 | 515 | 860 | 1.545 |
| 1000 | 20 | 50 | 70 | 105 | 155 | 260 | 430 | 770 |
