Wrought Steel Pipes - Bursting Pressures vs. Size
Theoretical bursting and working pressure of wrought steel standard, extra strong and double extra strong pipes.
The bursting pressures are based on Barlow's formula. The working pressures are based on factor 8.
Dimensions according ASME/ANSI B36.10/19.
Standard Wrought Steel Pipes - STD - Schedule 40
| Pipe Dimension (inches) | Bursting Pressure (psi) | Working Pressure (psi) |
|---|---|---|
| 1/2 | 10380 | 1300 |
| 3/4 | 8610 | 1080 |
| 1 | 8090 | 1010 |
| 1 1/4 | 6745 | 840 |
| 1 1/2 | 6100 | 760 |
| 2 | 5185 | 650 |
| 2 1/2 | 5650 | 710 |
| 3 | 4940 | 620 |
| 3 1/2 | 5610 | 700 |
| 4 | 5270 | 660 |
| 5 | 4630 | 580 |
| 6 | 4220 | 530 |
| 7 | 3940 | 490 |
| 8 | 3720 | 470 |
| 9 | 3540 | 445 |
| 10 | 3380 | 420 |
| 12 | 2930 | 370 |
- 1 psi (lb/in2) = 6,894.8 Pa (N/m2) = 6.895×10-3 N/mm2 = 6.895×10-2 bar = 27.71 in H2O at 61 oF (16.7 oC) = 703.1 mm H2O at 61 oF (16.7 oC) = 2.0416 in mercury at 61 oF (16.7 oC) = 51.8 mm mercury at 61 oF (16.7 oC) = 703.6 kg/m2 = 0.06895 atm = 2.307 Ft. H2O
Extra Strong Wrought Steel Pipes - XS - Schedule 80
| Pipe Dimension (inches) | Bursting Pressure (psi) | Working Pressure (psi) |
|---|---|---|
| 1/2 | 14000 | 1750 |
| 3/4 | 11730 | 1470 |
| 1 | 10890 | 1360 |
| 1 1/4 | 9200 | 1150 |
| 1 1/2 | 8420 | 1050 |
| 2 | 7340 | 920 |
| 2 1/2 | 7680 | 955 |
| 3 | 6860 | 860 |
| 3 1/2 | 7950 | 990 |
| 4 | 7480 | 940 |
| 5 | 6740 | 840 |
| 6 | 6510 | 810 |
| 7 | 6540 | 820 |
| 8 | 5770 | 720 |
| 9 | 5185 | 650 |
| 10 | 4645 | 580 |
| 12 | 3910 | 490 |
Double Extra Strong Wrought Steel Pipes - XXS
| Pipe Dimension (inches) | Bursting Pressure (psi) | Working Pressure (psi) |
|---|---|---|
| 1/2 | 28000 | 3500 |
| 3/4 | 23460 | 2930 |
| 1 | 21780 | 2720 |
| 1 1/4 | 18400 | 2300 |
| 1 1/2 | 16840 | 2110 |
| 2 | 14680 | 1840 |
| 2 1/2 | 15355 | 1920 |
| 3 | 13710 | 1710 |
| 3 1/2 | 15900 | 1990 |
| 4 | 14965 | 1870 |
| 5 | 13475 | 1690 |
| 6 | 13035 | 1630 |
| 7 | 11465 | 1430 |
| 8 | 10140 | 1270 |
