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Pipe Marking and Labeling
Solutions for
all your identification needs.
Pipe Size Chart
We hope you find this chart showing carbon steel pipe size information useful.
We are a leading supplier of pipe marking equipment and supplies. We stock brand name printers such as DuraLabel, Brady, Kroy, KSun and other leading mabufacturers.
We feature FAST, same-day shipping of pipe marker label printers and supplies from our huge warehouse. Orders may be placed as late as 6:30 PM (Eastern time) and you can receive it the next morning. Our printers also make warehouse labels, OSHA safety signs and labels, valve tags and many other types of labels and signs..
CARBON
STEEL PIPE SIZE CHART
Pipe Sizes, Diameters, Wall Thickness, Working
Pressure
Based on ANSI B 36.10 and ANSI B 36.19
Free online calculator: energy
costs due to pipe friction |
Nom.
Size
(in) |
O.D.
(in) |
Schedule
Number
or Weight |
Wall
Thickness
(in) |
Inside
Diameter
(in) |
Pipe
Weight
(lbs/ft) |
Working
Pressure
at 400F (psig) |
| 1/4 |
0.540 |
40ST |
0.088 |
0.364 |
0.424 |
188 |
| 1/4 |
0.540 |
80XS |
0.119 |
0.302 |
0.535 |
871 |
| 3/8 |
0.675 |
40ST |
0.091 |
0.493 |
0.567 |
203 |
| 3/8 |
0.675 |
80XS |
0.126 |
0.423 |
0.738 |
820 |
| 1/2 |
0.840 |
40ST |
0.109 |
0.622 |
0.850 |
214 |
| 1/2 |
0.840 |
80XS |
0.147 |
0.546 |
1.087 |
753 |
| 3/4 |
1.050 |
40ST |
0.113 |
0.824 |
1.13 |
217 |
| 3/4 |
1.050 |
80XS |
0.154 |
0.742 |
1.47 |
681 |
| 1 |
1.315 |
40ST |
0.133 |
1.049 |
1.68 |
226 |
| 1 |
1.315 |
80XS |
0.179 |
0.957 |
2.17 |
642 |
| 1-1/4 |
1.660 |
40ST |
0.140 |
1.380 |
2.27 |
229 |
| 1-1/4 |
1.660 |
80XS |
0.191 |
1.278 |
2.99 |
594 |
| 1-1/2 |
1.900 |
40ST |
0.145 |
1.610 |
2.72 |
231 |
| 1-1/2 |
1.900 |
80XS |
0.200 |
1.500 |
3.63 |
576 |
| 2 |
2.375 |
40ST |
0.154 |
2.067 |
3.65 |
230 |
| 2 |
2.375 |
80XS |
0.218 |
1.939 |
5.02 |
551 |
| 2-1/2 |
2.875 |
40ST |
0.203 |
2.469 |
5.79 |
533 |
| 2-1/2 |
2.875 |
80XS |
0.276 |
2.323 |
7.66 |
835 |
| 3 |
3.500 |
40ST |
0.216 |
3.068 |
7.57 |
482 |
| 3 |
3.500 |
80XS |
0.300 |
2.900 |
10.25 |
767 |
| 4 |
4.500 |
40ST |
0.237 |
4.026 |
10.78 |
430 |
| 4 |
4.500 |
80XS |
0.337 |
3.826 |
14.97 |
695 |
Nom.
Size
(in) |
O.D.
(in) |
Schedule
Number
or Weight |
Wall
Thickness
(in) |
Inside
Diameter
(in) |
Pipe
Weight
(lbs/ft) |
Working
Pressure
at 400F (psig) |
| 6 |
6.625 |
40ST |
0.280 |
6.065 |
18.96 |
696 |
| 6 |
6.625 |
80XS |
0.432 |
5.761 |
28.55 |
1209 |
| 8 |
8.625 |
30 |
0.277 |
8.071 |
24.68 |
526 |
| 8 |
8.625 |
40ST |
0.322 |
7.981 |
28.53 |
643 |
| 8 |
8.625 |
80XS |
0.500 |
7.625 |
43.35 |
1106 |
| 10 |
10.75 |
30 |
0.307 |
10.136 |
34.21 |
485 |
| 10 |
10.75 |
40ST |
0.365 |
10.202 |
40.45 |
606 |
| 10 |
10.75 |
XS |
0.500 |
9.750 |
54.69 |
887 |
| 10 |
10.75 |
80 |
0.593 |
9.564 |
64.28 |
1018 |
| 12 |
12.75 |
30 |
0.330 |
12.090 |
43.74 |
449 |
| 12 |
12.75 |
ST |
0.375 |
12.000 |
49.52 |
528 |
| 12 |
12.75 |
40 |
0.406 |
11.938 |
53.48 |
583 |
| 12 |
12.75 |
XS |
0.500 |
11.750 |
65.37 |
748 |
| 12 |
12.75 |
80 |
0.687 |
11.376 |
88.44 |
1076 |
| 14 |
14.00 |
30ST |
0.375 |
13.250 |
54.53 |
481 |
| 14 |
14.00 |
40 |
0.437 |
13.126 |
63.25 |
580 |
| 14 |
14.00 |
XS |
0.500 |
13.000 |
72.04 |
681 |
| 14 |
14.00 |
80 |
0.750 |
12.500 |
106.05 |
1081 |
| 16 |
16.00 |
30ST |
0.375 |
15.250 |
62.53 |
421 |
| 16 |
16.00 |
40XS |
0.500 |
15.000 |
82.71 |
596 |
| 18 |
18.00 |
ST |
0.375 |
17.250 |
70.54 |
374 |
| 18 |
18.00 |
30 |
0.437 |
17.126 |
81.91 |
451 |
| 18 |
18.00 |
XS |
0.500 |
17.000 |
93.38 |
530 |
| 18 |
18.00 |
40 |
0.562 |
16.876 |
104.59 |
607 |
| 20 |
20.00 |
20ST |
0.375 |
19.250 |
78.54 |
337 |
| 20 |
20.00 |
30XS |
0.500 |
19.000 |
104.05 |
477 |
| 20 |
20.00 |
40 |
0.593 |
18.814 |
122.82 |
581 |
Nom.
Size
(in) |
O.D.
(in) |
Schedule
Number
or Weight |
Wall
Thickness
(in) |
Inside
Diameter
(in) |
Pipe
Weight
(lbs/ft) |
Working
Pressure
at 400F (psig) |
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