Carbon, Alloy and Stainless Steel Pipes - ASME/ANSI B36.10/19
Pipe sizes, inside and outside diameters, wall thickness, schedules, moment of inertia, transverse area, weight of pipe filled with water - U.S. Customary Units
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The steel pipe data chart below can be used to find pipe sizes, diameters, wall thickness, working pressures and more The chart is based on ASME/ANSI B 36.10 Welded and Seamless Wrought Steel Pipe and ASME/ANSI B36.19 Stainless Steel Pipe.
Regardless of schedule number, pipes of a particular size all have the same outside diameter (not withstanding manufacturing tolerances). As the schedule number increases, the wall thickness increases, and the actual bore is reduced. For example:
- A 4 inches (100 mm) Schedule 40 pipe has an outside diameter of 4.500 inches (114.30 mm), a wall thickness of 0.237 inches (6.02 mm), giving a bore of 4.026 inches (102.26 mm)
- A 4 inches (100 mm) Schedule 80 pipe has an outside diameter of 4.500 inches ( 114.30 mm), a wall thickness of 0.337 inches (8.56 mm), giving a bore of 3.826 inches (97.18 mm)
Outside Diameter, Identification, Wall Thickness, Inside Diameter
| Pipe Size (inches) | Outside Diameter (inches) | Identification | Wall Thickness - t - (inches) | Inside Diameter - d - (inches) | ||
|---|---|---|---|---|---|---|
| Steel | Stainless Steel Schedule No. | |||||
| Iron Pipe Size | Schedule No. | |||||
| 1/8 | 0.405 | . STD XS | . 40 80 | 10S 40S 80S | 0.049 0.068 0.095 | 0.307 0.269 0.215 |
| 1/4 | 0.540 | . STD XS | . 40 80 | 10S 40S 80S | 0.065 0.088 0.119 | 0.410 0.364 0.302 |
| 3/8 | 0.675 | . STD XS | . 40 80 | 10S 40S 80S | 0.065 0.091 0.126 | 0.545 0.493 0.423 |
| 1/2 | 0.840 | . . STD XS . XXS | . . 40 80 160 . | 5S 10S 40S 80S . . | 0.065 0.083 0.109 0.147 0.187 0.294 | 0.710 0.674 0.622 0.546 0.466 0.252 |
| 3/4 | 1.050 | . . STD XS . XXS | . . 40 80 160 . | 5S 10S 40S 80S . . | 0.065 0.083 0.113 0.154 0.219 0.308 | 0.920 0.884 0.824 0.742 0.612 0.434 |
| 1 | 1.315 | . . STD XS . XXS | . . 40 80 160 . | 5S 10S 40S 80S . . | 0.065 0.109 0.133 0.179 0.250 0.358 | 1.185 1.097 1.049 0.957 0.815 0.599 |
| 1 1/4 | 1.660 | . . STD XS . XXS | . . 40 80 160 . | 5S 10S 40S 80S . . | 0.065 0.109 0.140 0.191 0.250 0.382 | 1.530 1.442 1.380 1.278 1.160 0.896 |
| 1 1/2 | 1.900 | . . STD XS . XXS | . . 40 80 160 . | 5S 10S 40S 80S . . | 0.065 0.109 0.145 0.200 0.281 0.400 | 1.770 1.682 1.610 1.500 1.338 1.100 |
| 2 | 2.375 | . . STD XS . XXS | . . 40 80 160 . | 5S 10S 40S 80S . . | 0.065 0.109 0.154 0.218 0.344 0.436 | 2.245 2.157 2.067 1.939 1.687 1.503 |
| 2 1/2 | 2.875 | . . STD XS . XXS | . . 40 80 160 . | 5S 10S 40S 80S . . | 0.083 0.120 0.203 0.276 0.375 0.552 | 2.709 2.635 2.469 2.323 2.125 1.771 |
| 3 | 3.500 | . . STD XS . XXS | . . 40 80 160 . | 5S 10S 40S 80S . . | 0.083 0.120 0.216 0.300 0.438 0.600 | 3.334 3.260 3.068 2.900 2.624 2.300 |
| 3 1/2 | 4.000 | . . STD XS | . . 40 80 | 5S 10S 40S 80S | 0.083 0.120 0.226 0.318 | 3.834 3.760 3.548 3.364 |
| 4 | 4.500 | . . STD XS . . XXS | . . 40 80 120 160 . | 5S 10S 40S 80S . . . | 0.083 0.120 0.237 0.337 0.438 0.531 0.674 | 4.334 4.260 4.026 3.826 3.624 3.438 3.152 |
| 5 | 5.563 | . . STD XS . . XXS | . . 40 80 120 160 . | 5S 10S 40S 80S . . . | 0.109 0.134 0.258 0.375 0.500 0.625 0.750 | 5.345 5.295 5.047 4.813 4.563 4.313 4.063 |
| 6 | 6.625 | . . STD XS . . XXS | . . 40 80 120 160 . | 5S 10S 40S 80S . . . | 0.109 0.134 0.280 0.432 0.562 0.718 0.864 | 6.407 6.357 6.065 5.761 5.501 5.189 4.897 |
| 8 | 8.625 | . . . . STD . XS . . . XXS . | . . 20 30 40 60 80 100 120 140 . 160 | 5S 10S . . 40S . 80S . . . . . | 0.109 0.148 0.250 0.277 0.322 0.406 0.500 0.594 0.719 0.812 0.875 0.906 | 8.407 8.329 8.125 8.071 7.981 7.813 7.625 7.437 7.187 7.001 6.875 6.813 |
| 10 | 10.750 | . . . . STD XS . . . . . | . . 20 30 40 60 80 100 120 140 160 | 5S 10S . . 40S 80S . . . . . | 0.134 0.165 0.250 0.307 0.365 0.500 0.594 0.719 0.844 1.000 1.125 | 10.482 10.420 10.250 10.136 10.020 9.750 9.562 9.312 9.062 8.750 8.500 |
| 12 | 12.75 | . . . . STD . XS . . . . . . | . . 20 30 . 40 . 60 80 100 120 140 160 | 5S 10S . . 40S . 80S . . . . . . | 0.156 0.180 0.25 0.330 0.375 0.406 0.500 0.562 0.688 0.844 1.000 1.125 1.312 | 12.438 12.390 12.250 12.090 12.000 11.938 11.750 11.626 11.374 11.062 10.750 10.500 10.126 |
| 14 | 14.00 | . . . . STD . XS . . . . . .. | . . 10 20 30 40 . 60 80 100 120 140 160 | 5S 10S . . . . . . . . . . . | 0.156 0.188 0.250 0.312 0.375 0.438 0.500 0.594 0.750 0.938 1.094 1.250 1.406 | 13.688 13.624 13.500 13.376 13.250 13.124 13.000 12.812 12.500 12.124 11.812 11.500 11.188 |
| 16 | 16.00 | . . . . STD XS . . . . . . | . . 10 20 30 40 60 80 100 120 140 160 | 5S 10S . . . . . . . . . . | 0.165 0.188 0.250 0.312 0.375 0.500 0.656 0.844 1.031 1.219 1.438 1.594 | 15.670 15.624 15.500 15.376 15.250 15.000 14.688 14.312 13.938 13.562 13.124 12.812 |
| 18 | 18.00 | . . . . STD . XS . . . . . . . | . . 10 20 . 30 . 40 60 80 100 120 140 160 | 5S 10S . . . . . . . . . . . . | 0.165 0.188 0.250 0.312 0.375 0.438 0.500 0.562 0.750 0.938 1.156 1.375 1.562 1.781 | 17.670 17.624 17.500 17.376 17.250 17.124 17.000 16.876 16.500 16.124 15.688 15.250 14.876 14.438 |
- 1 in (inch) = 25.4 mm
Area of Metal, Transverse Internal Area, Moment of Inertia, Weight Pipe, Weight Water, External Surface, Elastic Section Modulus
| Pipe Size (inches) | Area of Metal (square inches) | Transverse Internal Area | Area Moment of Inertia - l - (inches4) | Weight Pipe (pounds per foot) | Weight Water (pounds per foot) | External Surface (square feet per foot of pipe) | Elastic Section Modulus (in3) | |
|---|---|---|---|---|---|---|---|---|
| - a - (square inches) | - A - (square feet) | |||||||
| 1/8 | 0.0548 0.0720 0.0925 | 0.0740 0.0568 0.0364 | 0.00051 0.00040 0.00025 | 0.00088 0.00106 0.00122 | 0.19 0.24 0.31 | 0.032 0.025 0.016 | 0.106 0.106 0.106 | 0.00437 0.00523 0.00602 |
| 1/4 | 0.0970 0.1250 0.1574 | 0.1320 0.1041 0.0716 | 0.00091 0.00072 0.00050 | 0.00279 0.00331 0.00377 | 0.33 0.42 0.54 | 0.057 0.045 0.031 | 0.141 0.141 0.141 | 0.01032 0.01227 0.01395 |
| 3/8 | 0.1246 0.1670 0.2173 | 0.2333 0.1910 0.1405 | 0.00162 0.00133 0.00098 | 0.00586 0.00729 0.00862 | 0.42 0.57 0.74 | 0.101 0.083 0.061 | 0.178 0.178 0.178 | 0.01736 0.02160 0.02554 |
| 1/2 | 0.1583 0.1974 0.2503 0.3200 0.3836 0.5043 | 0.3959 0.3568 0.3040 0.2340 0.1706 0.050 | 0.00275 0.00248 0.00211 0.00163 0.00118 0.00035 | 0.01197 0.01431 0.01709 0.02008 0.02212 0.02424 | 0.54 0.67 0.85 1.09 1.31 1.71 | 0.172 0.155 0.132 0.102 0.074 0.022 | 0.220 0.220 220 0.220 220 0.220 | 0.02849 0.03407 0.04069 0.04780 0.05267 0.05772 |
| 3/4 | 0.2011 0.2521 0.3326 0.4335 0.5698 0.7180 | 0.6648 0.6138 0.5330 0.4330 0.2961 0.148 | 0.00462 0.00426 0.00371 0.00300 0.00206 0.00103 | 0.02450 0.02969 0.03704 0.04479 0.05269 0.05792 | 0.69 0.86 1.13 1.47 1.94 2.44 | 0.288 0.266 0.231 0.188 0.128 0.064 | 0.275 0.275 0.275 0.275 0.275 0.275 | 0.04667 0.05655 0.07055 0.08531 0.10036 0.11032 |
| 1 | 0.2553 0.4130 0.4939 0.6388 0.8365 1.0760 | 1.1029 0.9452 0.8640 0.7190 0.5217 0.282 | 0.00766 0.00656 0.00600 0.00499 0.00362 0.00196 | 0.04999 0.07569 0.08734 0.1056 0.1251 0.1405 | 0.87 1.40 1.68 2.17 2.84 3.66 | 0.478 0.409 0.375 0.312 0.230 0.122 | 0.344 0.344 0.344 0.344 0.344 0.344 | 0.07603 0.11512 0.1328 0.1606 0.1903 0.2136 |
| 1 1/4 | 0.3257 0.4717 0.6685 0.8815 1.1070 1.534 | 1.839 1.633 1.495 1.283 1.057 0.630 | 0.01277 0.01134 0.01040 0.00891 0.00734 0.00438 | 0.1038 0.1605 0.1947 0.2418 0.2839 0.3411 | 1.11 1.81 2.27 3.00 3.76 5.21 | 0.797 0.708 0.649 0.555 0.458 0.273 | 0.435 0.435 0.435 0.435 0.435 0.435 | 0.1250 0.1934 0.2346 0.2913 0.3421 0.4110 |
| 1 1/2 | 0.3747 0.6133 0.7995 1.068 1.429 1.885 | 2.461 2.222 2.036 1.767 1.406 0.950 | 0.01709 0.01543 0.01414 0.01225 0.00976 0.00660 | 0.1579 0.2468 0.3099 0.3912 0.4824 0.5678 | 1.28 2.09 2.72 3.63 4.86 6.41 | 1.066 0.963 0.882 0.765 0.608 0.42 | 0.497 0.497 0.497 0.497 0.497 0.497 | 0.1662 0.2598 0.3262 0.4118 0.5078 0.5977 |
| 2 | 0.4717 0.7760 1.075 1.477 2.190 2.656 | 3.958 3.654 3.355 2.953 2.241 1.774 | 0.02749 0.02538 0.02330 0.02050 0.01556 0.01232 | 0.3149 0.4992 0.6657 0.8679 1.162 1.311 | 1.61 2.64 3.65 5.02 7.46 9.03 | 1.72 1.58 1.45 1.28 0.97 0.77 | 0.622 0.622 0.622 0.622 0.622 0.622 | 0.2652 0.4204 0.5606 0.7309 0.979 1.104 |
| 2 1/2 | 0.7280 1.039 1.704 2.254 2.945 4.028 | 5.764 5.453 4.788 4.238 3.546 2.464 | 0.04002 0.03787 0.03322 0.02942 0.02463 0.01710 | 0.7100 0.9873 1.530 1.924 2.353 2.871 | 2.48 3.53 5.79 7.66 10.01 13.69 | 2.50 2.36 2.07 1.87 1.54 1.07 | 0.753 0.753 0.753 0.753 0.753 0.753 | 0.4939 0.6868 1.064 1.339 1.638 1.997 |
| 3 | 0.8910 1.274 2.228 3.016 4.205 5.466 | 8.730 8.347 7.393 6.605 5.408 4.155 | 0.06063 0.05796 0.05130 0.04587 0.03755 0.02885 | 1.301 1.822 3.017 3.894 5.032 5.993 | 3.03 4.33 7.58 10.25 14.32 18.58 | 3.78 3.62 3.20 2.6 2.35 1.80 | 0.916 0.916 0.916 0.916 0.916 0.916 | 0.7435 1.041 1.724 2.225 2.876 3.424 |
| 3 1/2 | 1.021 1.463 2.680 3.678 | 11.545 11.104 9.886 8.888 | 0.08017 0.07711 0.06870 0.06170 | 1.960 2.755 4.788 6.280 | 3.48 4.97 9.11 12.50 | 5.00 4.81 4.29 3.84 | 1.047 1.047 1.047 1.047 | 0.9799 1.378 2.394 3.140 |
| 4 | 1.152 1.651 3.174 4.407 5.595 6.621 8.101 | 14.75 14.25 12.73 11.50 10.31 9.28 7.80 | 0.10245 0.09898 0.08840 0.07986 0.0716 0.0645 0.0542 | 2.810 3.963 7.233 9.610 11.65 13.27 15.28 | 3.92 5.61 10.79 14.98 19.0 22.51 27.54 | 6.39 6.18 5.50 4.98 4.47 4.02 3.38 | 1.178 1.178 1.178 1.178 1.178 1.178 1.178 | 1.249 1.761 3.214 4.271 5.178 5.898 6.791 |
| 5 | 1.868 2.285 4.300 6.112 7.953 9.696 11.340 | 22.44 22.02 20.01 18.19 16.35 14.61 12.97 | 0.1558 0.1529 0.1390 0.1263 0.1136 0.1015 0.0901 | 6.947 8.425 15.16 20.67 25.73 30.03 33.63 | 6.36 7.77 14.62 20.78 27.04 32.96 38.55 | 9.72 9.54 8.67 7.88 7.09 6.33 5.61 | 1.456 1.456 1.456 1.456 1.456 1.456 1.456 | 2.498 3.029 5.451 7.431 9.250 10.796 12.090 |
| 6 | 2.231 2.733 5.581 8.405 10.70 13.32 15.64 | 32.24 31.74 28.89 26.07 23.77 21.15 18.84 | 0.2239 0.2204 0.2006 0.1810 0.1650 0.1469 0.1308 | 11.85 14.40 28.14 40.49 49.61 58.97 66.33 | 7.60 9.29 18.97 28.57 36.39 45.35 53.16 | 13.97 13.75 12.51 11.29 10.30 9.16 8.16 | 1.734 1.734 1.734 1.734 1.734 1.734 1.734 | 3.576 4.346 8.496 12.22 14.98 17.81 20.02 |
| 8 | 2.916 3.941 6.57 7.26 8.40 10.48 12.76 14.96 17.84 19.93 21.30 21.97 | 55.51 54.48 51.85 51.16 50.03 47.94 45.66 43.46 40.59 38.50 37.12 36.46 | 0.3855 0.3784 0.3601 0.3553 0.3474 0.3329 0.3171 0.3018 0.2819 0.2673 0.2578 0.2532 | 26.44 35.41 57.72 63.35 72.49 88.73 105.7 121.3 140.5 153.7 162.0 165.9 | 9.93 13.40 22.36 24.70 28.55 35.64 43.39 50.95 60.71 67.76 72.42 74.69 | 24.06 23.61 22.47 22.17 21.70 20.77 19.78 18.83 17.59 16.68 16.10 15.80 | 2.258 2.258 2.258 2.258 2.258 2.258 2.258 2.258 2.258 2.258 2.258 2.258 | 6.131 8.212 13.39 14.69 16.81 20.58 24.51 28.14 32.58 35.65 37.56 38.48 |
| 10 | 4.36 5.49 8.24 10.07 11.90 16.10 18.92 22.63 26.24 30.63 34.02 | 86.29 85.28 82.52 80.69 78.86 74.66 71.84 68.13 64.53 60.13 56.75 | 0.5992 0.5922 0.5731 0.5603 0.5475 0.5185 0.4989 0.4732 0.4481 0.4176 0.3941 | 63.0 76.9 113.7 137.4 160.7 212.0 244.8 286.1 324.2 367.8 399.3 | 15.19 18.65 28.04 34.24 40.48 54.74 64.43 77.03 89.29 104.13 115.64 | 37.39 36.95 35.76 34.96 34.20 32.35 31.13 29.53 27.96 26.06 24.59 | 2.814 2.814 2.814 2.814 2.814 2.814 2.814 2.814 2.814 2.814 2.814 | 11.71 14.30 21.15 25.57 29.90 39.43 45.54 53.22 60.32 68.43 74.29 |
| 12 | 6.17 7.11 9.82 12.87 14.58 15.77 19.24 21.52 26.03 31.53 36.91 41.08 47.14 | 121.50 120.57 117.86 114.80 113.10 111.93 108.43 106.16 101.64 96.14 90.76 86.59 80.53 | 0.8438 0.8373 0.8185 0.7972 0.7854 0.7773 0.7528 0.7372 0.7058 0.6677 0.6303 0.6013 0.5592 | 122.4 140.4 191.8 248.4 279.3 300.3 361.5 400.4 475.1 561.6 641.6 700.5 781.1 | 20.98 24.17 33.38 43.77 49.56 53.52 65.42 73.15 88.63 107.32 125.49 139.67 160.27 | 52.65 52.25 51.07 49.74 49.00 48.50 46.92 46.00 44.04 41.66 39.33 37.52 34.89 | 3.338 3.338 3.338 3.338 3.338 3.338 3.338 3.338 3.338 3.338 3.338 3.338 3.338 | 19.2 22.0 30.2 39.0 43.8 47.1 56.7 62.8 74.6 88.1 100.7 109.9 122.6 |
| 14 | 6.78 8.16 10.80 13.42 16.05 18.66 21.21 24.98 31.22 38.45 44.32 50.07 55.63 | 147.15 145.78 143.14 140.52 137.88 135.28 132.73 128.96 122.72 115.49 109.62 103.87 98.31 | 1.0219 1.0124 0.9940 0.9758 0.9575 0.9394 0.9217 0.8956 0.8522 0.8020 0.7612 0.7213 0.6827 | 162.6 194.6 255.3 314.4 372.8 429.1 483.8 562.3 678.3 824.4 929.6 1027.0 1117.0 | 23.07 27.73 36.71 45.61 54.57 63.44 72.09 85.05 106.13 130.85 150.79 170.28 189.11 | 63.77 63.17 62.03 60.89 59.75 58.64 57.46 55.86 53.18 50.04 47.45 45.01 42.60 | 3.665 3.665 3.665 3.665 3.665 3.665 3.665 3.665 3.665 3.665 3.665 3.665 3.665 | 23.2 27.8 36.6 45.0 53.2 61.3 69.1 80.3 98.2 117.8 132.8 146.8 159.6 |
| 16 | 8.21 9.34 12.37 15.38 18.41 24.35 31.62 40.14 48.48 56.56 65.78 72.10 | 192.85 191.72 188.69 185.69 182.65 176.72 169.44 160.92 152.58 144.50 135.28 128.96 | 1.3393 1.3314 1.3103 1.2895 1.2684 1.2272 1.1766 1.175 1.0596 1.0035 0.9394 0.8956 | 257.3 291.9 383.7 473.2 562.1 731.9 932.4 1155.8 1364.5 1555.8 1760.3 1893.5 | 27.90 31.75 42.05 52.27 62.58 82.77 107.50 136.61 164.82 192.43 223.64 245.25 | 83.57 83.08 81.74 80.50 79.12 76.58 73.42 69.73 66.12 62.62 58.64 55.83 | 4.189 4.189 4.189 4.189 4.189 4.189 4.189 4.189 4.189 4.189 4.189 4.189 | 32.2 36.5 48.0 59.2 70.3 91.5 116.6 144.5 170.5 194.5 220.0 236.7 |
| 18 | 9.25 10.52 13.94 17.34 20.76 24.17 27.49 30.79 40.64 50.23 61.17 71.81 80.66 90.75 | 245.22 243.95 240.53 237.13 233.71 230.30 226.98 223.68 213.83 204.24 193.30 182.66 173.80 163.72 | 1.7029 1.6941 1.6703 1.6467 1.6230 1.5990 1.5763 1.5533 1.4849 1.4183 1.3423 1.2684 1.2070 1.1369 | 367.6 417.3 549.1 678.2 806.7 930.3 1053.2 1171.5 1514.7 1833.0 2180.0 2498.1 2749.0 3020.0 | 31.43 35.76 47.39 58.94 70.59 82.15 93.45 104.67 138.17 170.92 207.96 244.14 274.22 308.50 | 106.26 105.71 104.21 102.77 101.18 99.84 98.27 96.93 92.57 88.50 83.76 79.07 75.32 70.88 | 4.712 4.712 4.712 4.712 4.712 4.712 4.712 4.712 4.712 4.712 4.712 4.712 4.712 4.712 | 40.8 46.4 61.1 75.5 89.6 103.4 117.0 130.1 168.3 203.8 242.3 277.6 305.5 335.6 |
- 1 lbm = 0.4536 kg
- 1 ft (foot) = 0.3048 m
- 1 ft2 = 0.0929 m2
- 1 in2 = 645.2 mm2 = 6.452 cm2 = 6.452x10-4 m2
- 1 cm4 = 10-8 m = 104 mm
- 1 in4 = 4.16x105 mm4 = 41.6 cm4
- 1 in3 = 0.000016387 m3 = 16.38 cm3 = 5.78 10-4 ft3
STD, XS and XXS
To distinguish different weights of pipe, three long standing traditional designations are used:
- standard wall - STD
- extra strong wall - XS
- double extra strong wall - XXS
The last two designations are sometimes referred to as extra heavy wall (XH), and double extra heavy wall (XXH).
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