The table below indicates maximum working pressure of carbon steel pipes manufactured according ASME/ANSI B 36.10 and ASTM A53 B:
| Carbon Steel Tubes - Working Pressure |
Nominal Size
(inches) |
Pipe Outside Diameter
OD
(inches) |
|
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 stainless steel 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
