Skip to contentStandard Steel Pipe Sizes, Line Pipe Sizes
Pipe Sizes
Nom. Size | O.D. | Standard Weight | Extra Strong | Double Extra Strong |
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I.D. | Wall Thickness | Wt. Per Ft. Plain Ends | I.D. | Wall Thickness | Wt. Per Ft. Plain Ends | I.D. | Wall Thickness | Wt. Per Ft. Plain Ends |
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1/8 | 0.405 | 0.269 | 0.068 | 0.24 | 0.215 | 0.095 | 0.31 | – | – | – |
1/4 | 0.540 | 0.364 | 0.088 | 0.42 | 0.302 | 0.119 | 0.54 | – | – | – |
3/8 | 0.675 | 0.493 | 0.091 | 0.57 | 0.423 | 0.126 | 0.74 | – | – | – |
1/2 | 0.840 | 0.622 | 0.109 | 0.85 | 0.546 | 0.147 | 1.09 | 0.252 | 0.294 | 1.71 |
3/4 | 1.050 | 0.824 | 0.113 | 1.13 | 0.742 | 0.154 | 1.47 | 0.434 | 0.308 | 2.44 |
1 | 1.315 | 1.049 | 0.133 | 1.68 | 0.957 | 0.179 | 2.17 | 0.599 | 0.358 | 3.66 |
1-1/4 | 1.660 | 1.380 | 0.140 | 2.27 | 1.278 | 0.191 | 3.00 | 0.896 | 0.382 | 5.21 |
1-1/2 | 1.900 | 1.610 | 0.145 | 2.72 | 1.500 | 0.200 | 3.63 | 1.100 | 0.400 | 6.41 |
2 | 2.375 | 2.067 | 0.154 | 3.65 | 1.939 | 0.218 | 5.02 | 1.503 | 0.436 | 9.03 |
2-1/2 | 2.875 | 2.469 | 0.203 | 5.79 | 2.323 | 0.276 | 7.66 | 1.771 | 0.552 | 13.70 |
3 | 3.500 | 3.068 | 0.216 | 7.58 | 2.900 | 0.300 | 10.25 | 2.300 | 0.600 | 18.58 |
3-1/2 | 4.000 | 3.548 | 0.226 | 9.11 | 3.364 | 0.318 | 12.51 | 2.728 | 0.636 | 22.85 |
4 | 4.500 | 4.026 | 0.237 | 10.79 | 3.826 | 0.337 | 14.98 | 3.152 | 0.674 | 27.54 |
5 | 5.563 | 5.047 | 0.258 | 14.62 | 4.813 | 0.375 | 20.78 | 40.63 | 0.750 | 38.55 |
6 | 6.625 | 6.065 | 0.280 | 18.97 | 5.761 | 0.432 | 28.57 | 4.897 | 0.864 | 53.16 |
8 | 8.625 | 8.071 | 0.277 | 24.70 | 7.625 | 0.500 | 43.39 | 6.875 | 0.875 | 72.42 |
8 | 8.625 | 7.981 | 0.322 | 28.55 | – | – | – | – | – | – |
10 | 10.750 | 10.192 | 0.279 | 31.20 | 9.750 | 0.500 | 54.74 | – | – | – |
10 | 10.750 | 10.136 | 0.907 | 34.24 | – | – | – | – | – | – |
10 | 10.750 | 10.020 | 0.365 | 40.48 | – | – | – | – | – | – |
12 | 12.750 | 10.090 | 0.330 | 43.77 | 11.750 | 0.500 | 65.42 | – | – | – |
12 | 12.750 | 12.000 | 0.375 | 49.56 | – | – | – | – | – | – |
Nom. Size | O.D. | I.D. | Weight Per Ft. | Thds. Per In. | Taper Per Ft. | Male Thd. Length | Coupl. Length | Coupl. Dia. |
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Plain | Thd. & Cpl. |
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1/8 | 0.405 | 0.269 | 0.24 | 0.25 | 27 | 3/4 | 0.392 | 1-1/16 | 0.563 |
1/4 | 0.54 | 0.364 | 0.42 | 0.43 | 18 | 3/4 | 0.595 | 1-5/8 | 0.719 |
3/8 | 0.675 | 0.493 | 0.57 | 0.57 | 18 | 3/4 | 0.601 | 1-5/8 | 0.875 |
1/2 | 0.84 | 0.622 | 0.85 | 0.86 | 14 | 3/4 | 0.782 | 2-1/8 | 1.063 |
3/4 | 1.05 | 0.824 | 1.13 | 1.14 | 14 | 3/4 | 0.794 | 2-1/8 | 1.313 |
1 | 1.315 | 1.049 | 1.68 | 1.7 | 11-1/2 | 3/4 | 0.985 | 2-5/8 | 1.576 |
1-1/4 | 1.66 | 1.38 | 2.27 | 2.3 | 11-1/2 | 3/4 | 1.009 | 2-3/4 | 2.054 |
1-1/2 | 1.9 | 1.61 | 2.72 | 2.75 | 11-1/2 | 3/4 | 1.025 | 2-3/4 | 2.200 |
2 | 2.375 | 2.067 | 3.65 | 3.75 | 11-1/2 | 3/4 | 1.058 | 2-7/8 | 2.875 |
2-1/2 | 2.875 | 2.469 | 5.79 | 5.90 | 8 | 3/4 | 1.571 | 4-1/8 | 3.375 |
3 | 3.5 | 3.068 | 7.58 | 7.70 | 8 | 3/4 | 1.634 | 4-1/4 | 4.000 |
3-1/2 | 4 | 3.548 | 9.11 | 9.25 | 8 | 3/4 | 1.684 | 4-3/8 | 4.625 |
4 | 4.5 | 4.026 | 10.79 | 11 | 8 | 3/4 | 1.734 | 4-1/2 | 5.200 |
5 | 5.563 | 5.047 | 14.62 | 15 | 8 | 3/4 | 1.84 | 4-5/8 | 6.296 |
6 | 6.625 | 6.065 | 18.97 | 19.45 | 8 | 3/4 | 1.946 | 4-7/8 | 7.390 |
8 | 8.625 | 8.071 | 24.7 | 25.55 | 8 | 3/4 | 2.146 | 5-1/4 | 9.625 |
10 | 10.75 | 10.192 | 31.2 | 32.75 | 8 | 3/4 | 2.359 | 5-3/4 | 11.750 |
10 | 10.75 | 10.136 | 34.24 | 35.75 | 8 | 3/4 | 2.359 | 5-3/4 | 11.750 |
12 | 12.75 | 12.09 | 43.77 | 45.45 | 8 | 3/4 | 2.559 | 6-1/8 | 14,000 |
14 | 14 | 13.25 | 54.57 | 57 | 8 | 3/4 | 2.684 | 6-3/8 | 15,000 |
16 | 16 | 15.25 | 62.58 | 63.3 | 8 | 3/4 | 2.884 | 6-3/4 | 17,000 |
18 | 18 | 17.25 | 70.59 | 73 | 8 | 3/4 | 3.084 | 7-1/8 | 19,000 |
20 | 20 | 19.25 | 78.60 | 81 | 8 | 3/4 | 3.284 | 7-5/8 | 21,000 |