ASTM A53 B Carbon Steel Pipes - Working Pressure

Maximum working pressure of carbon steel pipe at temperature 400oF

The table below indicates maximum working pressure of carbon steel pipes manufactured according ASME/ANSI B 36.10 and ASTM A53 B:

Carbon Steel Pipes - Working Pressure
Nominal Size
(inches)
Pipe Outside Diameter
OD
(inches)
Schedule Number or weight Wall Thickness
- t -
(inches)
Inside Diameter
- d -
(inches)
Working Pressure ASTM A53 B to 400°F
Manu-
facturing Process
Joint Type psig
1/4 0.540 40ST 0.088 0.364 CW1) T 188
80XS 0.119 0.302 CW T 871
3/8 0.675 40ST 0.091 0.493 CW T 203
80XS 0.126 0.423 CW T 820
1/2 0.840 40ST 0.109 0.622 CW T 214
80XS 0.147 0.546 CW T 753
3/4 1.050 40ST 0.113 0.824 CW T 217
80XS 0.154 0.742 CW T 681
1 1.315 40ST 0.133 1.049 CW T 226
80XS 0.179 0.957 CW T 642
1 1/4 1.660 40ST 0.140 1.380 CW T 229
80XS 0.191 1.278 CW T 594
1 1/2 1.900 40ST 0.145 1.610 CW T 231
80XS 0.200 1.500 CW T 576
2 2.375 40ST 0.154 2.067 CW T 230
80XS 0.218 1.939 CW T 551
2 1/2 2.875 40ST 0.203 2.469 CW W 533
80XS 0.276 2.323 CW W 835
3 3.500 40ST 0.216 3.068 CW W 482
80XS 0.300 2.900 CW W 767
4 4.500 40ST 0.237 4.026 CW W 430
80XS 0.337 3.826 CW W 695
6 6.625 40ST 0.280 6.065 ERW2) W 696
80XS 0.432 5.761 ERW W 1209
8 8.625 30 0.277 8.071 ERW W 526
40ST 0.322 7.981 ERW W 643
80XS 0.500 7.625 ERW W 1106
10 10.75 30 0.307 10.136 ERW W 485
40ST 0.365 10.020 ERW W 606
XS 0.500 9.750 ERW W 887
80 0.593 9.564 ERW W 1081
12 12.75 30 0.330 12.090 ERW W 449
ST 0.375 12.000 ERW W 528
40 0.406 11.938 ERW W 583
XS 0.500 11.750 ERW W 748
80 0.687 11.376 ERW W 1076
14 14.00 30ST 0.375 13.250 ERW W 481
40 0.437 13.126 ERW W 580
XS 0.500 13.000 ERW W 681
80 0.750 12.500 ERW W 1081
16 16.00 30ST 0.375 15.250 ERW W 421
40XS 0.500 15.000 ERW W 596
18 18.00 ST 0.375 17.250 ERW W 374
30 0.437 17.126 ERW W 451
XS 0.500 17.000 ERW W 530
40 0.562 16.876 ERW W 607
20 20.00 20ST 0.375 19.250 ERW W 337
30XS 0.500 19.000 ERW W 477
40 0.593 18.814 ERW W 581

1) CW - continuous weld - a method of producing small diameter pipe (1/2-4")
2) ERW - electric resistance weld - most common form of manufacture for pipe in sizes from 2 3/8-22" OD

  • 1 in (inch) = 25.4 mm
  • 1 psi (lb/in2) = 6,894.8 Pa (N/m2) = 6.895x10-2 bar

Related Topics

  • Pressure Ratings - Pressure ratings of pipes and tubes and their fittings - carbon steel , stainless steel, plastic, copper and more

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