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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.

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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)
Standard - STD - Sch. 40
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

Pipe Dimension
(inches)
Extra Strong - XS - Schedule 80
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)
Double Extra Strong - XXS
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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  • Engineering ToolBox, (2008). Wrought Steel Pipes - Bursting Pressures vs. Size. [online] Available at: https://www.engineeringtoolbox.com/wrought-steel-pipe-bursting-pressure-d_1123.html [Accessed Day Mo. Year].

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