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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

Wrought Steel Pipes - Standard - STD - Sch. 40 - Bursting Pressures
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) = 6.895x10-3 N/mm2 = 6.895x10-2 bar = 27.71 in H2O at 62oF (16.7oC) = 703.1 mm H2O at 62oF (16.7oC) = 2.0416 in mercury at 62oF (16.7oC) = 51.8 mm mercury at 62oF (16.7oC) = 703.6 kg/m2 = 0.06895 atm = 2.307 Ft. H2O

Extra Strong Wrought Steel Pipes - XS - Schedule 80

Wrought Steel Pipes - Extra Strong - XS - Schedule 80 - Bursting Pressures
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

Wrought Steel Pipes - Double Extra Strong - XXS - Bursting Pressures
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

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