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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)
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 62^oF (16.7^oC) = 703.1 mm H₂O at 62^oF (16.7^oC) = 2.0416 in mercury at 62^oF (16.7^oC) = 51.8 mm mercury at 62^oF (16.7^oC) = 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)
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)
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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