Tube: round
ДСТУ 8938
ДСТУ 8938 - Seamless hot-deformed steel pipes - Technical specification
Seamless hot-deformed steel tubes for general purposes, made of carbon and alloy steels. Table 1 of the standard lists outside diameters from 32 to 530 mm with wall thicknesses from 2.5 to 75 mm; a size is ordered by its outside diameter and wall thickness, and the mass per metre follows the formula of the standard at a steel density of 7.85 g/cm³. In force since 1 January 2021 in place of ГОСТ 8731-74, ГОСТ 8732-78 and ГОСТ 9567-75. Tubes ordered by inside diameter or in other sizes are agreed with the producer and are not part of the size table.
| Product | Outer diameter, mm | Inner diameter, mm | Wall thickness, mm | Section area, cm2 | Mass per metre, kg/m | Section perimeter, mm | Second moment of area, cm4 | Elastic section modulus, cm3 | Plastic section modulus, cm3 | Radius of gyration, cm | Torsional constant, cm4 | Torsional modulus, cm3 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ДСТУ 8938 seamless tube 140x12 | 140 | 116* | 12 | 48.255 | 37.88 | 439.823 | 996.945 | 142.421 | 197.184 | 4.545 | 1993.891 | 284.842 |
| ДСТУ 8938 seamless tube 140x13 | 140 | 114* | 13 | 51.868 | 40.716 | 439.823 | 1056.675 | 150.954 | 210.409 | 4.514 | 2113.349 | 301.907 |
| ДСТУ 8938 seamless tube 140x14 | 140 | 112* | 14 | 55.418 | 43.503 | 439.823 | 1113.341 | 159.049 | 223.179 | 4.482 | 2226.683 | 318.098 |
| ДСТУ 8938 seamless tube 140x15 | 140 | 110* | 15 | 58.905 | 46.24 | 439.823 | 1167.053 | 166.722 | 235.5 | 4.451 | 2334.105 | 333.444 |
| ДСТУ 8938 seamless tube 140x16 | 140 | 108* | 16 | 62.329 | 48.928 | 439.823 | 1217.913 | 173.988 | 247.381 | 4.42 | 2435.825 | 347.975 |
| ДСТУ 8938 seamless tube 140x17 | 140 | 106* | 17 | 65.691 | 51.567 | 439.823 | 1266.024 | 180.861 | 258.831 | 4.39 | 2532.048 | 361.721 |
| ДСТУ 8938 seamless tube 140x18 | 140 | 104* | 18 | 68.989 | 54.157 | 439.823 | 1311.488 | 187.355 | 269.856 | 4.36 | 2622.976 | 374.711 |
| ДСТУ 8938 seamless tube 140x19 | 140 | 102* | 19 | 72.225 | 56.697 | 439.823 | 1354.403 | 193.486 | 280.465 | 4.33 | 2708.807 | 386.972 |
| ДСТУ 8938 seamless tube 140x20 | 140 | 100* | 20 | 75.398 | 59.188 | 439.823 | 1394.867 | 199.267 | 290.667 | 4.301 | 2789.734 | 398.533 |
| ДСТУ 8938 seamless tube 140x22 | 140 | 96* | 22 | 81.556 | 64.021 | 439.823 | 1468.819 | 209.831 | 309.877 | 4.244 | 2937.638 | 419.663 |
| ДСТУ 8938 seamless tube 140x24 | 140 | 92* | 24 | 87.462 | 68.658 | 439.823 | 1534.082 | 219.155 | 327.552 | 4.188 | 3068.165 | 438.309 |
| ДСТУ 8938 seamless tube 140x25 | 140 | 90* | 25 | 90.321 | 70.902 | 439.823 | 1563.679 | 223.383 | 335.833 | 4.161 | 3127.357 | 446.765 |
| ДСТУ 8938 seamless tube 140x26 | 140 | 88* | 26 | 93.117 | 73.097 | 439.823 | 1591.366 | 227.338 | 343.755 | 4.134 | 3182.732 | 454.676 |
| ДСТУ 8938 seamless tube 140x28 | 140 | 84* | 28 | 98.52 | 77.338 | 439.823 | 1641.349 | 234.478 | 358.549 | 4.082 | 3282.698 | 468.957 |
| ДСТУ 8938 seamless tube 140x30 | 140 | 80* | 30 | 103.673 | 81.383 | 439.823 | 1684.679 | 240.668 | 372 | 4.031 | 3369.358 | 481.337 |
| ДСТУ 8938 seamless tube 140x32 | 140 | 76* | 32 | 108.573 | 85.23 | 439.823 | 1721.975 | 245.996 | 384.171 | 3.982 | 3443.95 | 491.993 |
| ДСТУ 8938 seamless tube 140x34 | 140 | 72* | 34 | 113.223 | 88.88 | 439.823 | 1753.824 | 250.546 | 395.125 | 3.936 | 3507.649 | 501.093 |
| ДСТУ 8938 seamless tube 140x35 | 140 | 70* | 35 | 115.454 | 90.631 | 439.823 | 1767.882 | 252.555 | 400.167 | 3.913 | 3535.764 | 505.109 |
| ДСТУ 8938 seamless tube 140x36 | 140 | 68* | 36 | 117.621 | 92.333 | 439.823 | 1780.785 | 254.398 | 404.928 | 3.891 | 3561.571 | 508.796 |
| ДСТУ 8938 seamless tube 146x4.5 | 146 | 137* | 4.5 | 20.004 | 15.703 | 458.673 | 501.165 | 68.653 | 90.131 | 5.005 | 1002.33 | 137.305 |
| ДСТУ 8938 seamless tube 146x5 | 146 | 136* | 5 | 22.148 | 17.386 | 458.673 | 551.103 | 75.494 | 99.447 | 4.988 | 1102.207 | 150.987 |
| ДСТУ 8938 seamless tube 146x5.5 | 146 | 135* | 5.5 | 24.277 | 19.057 | 458.673 | 599.952 | 82.185 | 108.627 | 4.971 | 1199.904 | 164.37 |
| ДСТУ 8938 seamless tube 146x6 | 146 | 134* | 6 | 26.389 | 20.716 | 458.673 | 647.727 | 88.73 | 117.672 | 4.954 | 1295.455 | 177.46 |
| ДСТУ 8938 seamless tube 146x6.5 | 146 | 133* | 6.5 | 28.486 | 22.362 | 458.673 | 694.445 | 95.129 | 126.583 | 4.937 | 1388.89 | 190.259 |
| ДСТУ 8938 seamless tube 146x7 | 146 | 132* | 7 | 30.568 | 23.996 | 458.673 | 740.12 | 101.386 | 135.361 | 4.921 | 1480.241 | 202.773 |
| ДСТУ 8938 seamless tube 146x7.5 | 146 | 131* | 7.5 | 32.633 | 25.617 | 458.673 | 784.77 | 107.503 | 144.008 | 4.904 | 1569.539 | 215.005 |
| ДСТУ 8938 seamless tube 146x8 | 146 | 130* | 8 | 34.683 | 27.226 | 458.673 | 828.408 | 113.481 | 152.523 | 4.887 | 1656.816 | 226.961 |
| ДСТУ 8938 seamless tube 146x8.5 | 146 | 129* | 8.5 | 36.717 | 28.823 | 458.673 | 871.051 | 119.322 | 160.908 | 4.871 | 1742.101 | 238.644 |
| ДСТУ 8938 seamless tube 146x9 | 146 | 128* | 9 | 38.736 | 30.408 | 458.673 | 912.713 | 125.029 | 169.164 | 4.854 | 1825.426 | 250.058 |
| ДСТУ 8938 seamless tube 146x9.5 | 146 | 127* | 9.5 | 40.739 | 31.98 | 458.673 | 953.411 | 130.604 | 177.292 | 4.838 | 1906.821 | 261.208 |
| ДСТУ 8938 seamless tube 146x10 | 146 | 126* | 10 | 42.726 | 33.54 | 458.673 | 993.158 | 136.049 | 185.293 | 4.821 | 1986.316 | 272.098 |
| ДСТУ 8938 seamless tube 146x11 | 146 | 124* | 11 | 46.653 | 36.622 | 458.673 | 1069.862 | 146.556 | 200.919 | 4.789 | 2139.724 | 293.113 |
| ДСТУ 8938 seamless tube 146x12 | 146 | 122* | 12 | 50.517 | 39.656 | 458.673 | 1142.943 | 156.568 | 216.048 | 4.757 | 2285.886 | 313.135 |
| ДСТУ 8938 seamless tube 146x13 | 146 | 120* | 13 | 54.318 | 42.64 | 458.673 | 1212.517 | 166.098 | 230.689 | 4.725 | 2425.033 | 332.196 |
| ДСТУ 8938 seamless tube 146x14 | 146 | 118* | 14 | 58.057 | 45.574 | 458.673 | 1278.697 | 175.164 | 244.851 | 4.693 | 2557.395 | 350.328 |
| ДСТУ 8938 seamless tube 146x15 | 146 | 116* | 15 | 61.732 | 48.46 | 458.673 | 1341.597 | 183.78 | 258.54 | 4.662 | 2683.194 | 367.561 |
| ДСТУ 8938 seamless tube 146x16 | 146 | 114* | 16 | 65.345 | 51.296 | 458.673 | 1401.326 | 191.963 | 271.765 | 4.631 | 2802.653 | 383.925 |
| ДСТУ 8938 seamless tube 146x17 | 146 | 112* | 17 | 68.895 | 54.083 | 458.673 | 1457.993 | 199.725 | 284.535 | 4.6 | 2915.986 | 399.45 |
| ДСТУ 8938 seamless tube 146x18 | 146 | 110* | 18 | 72.382 | 56.82 | 458.673 | 1511.704 | 207.083 | 296.856 | 4.57 | 3023.408 | 414.166 |
| ДСТУ 8938 seamless tube 146x19 | 146 | 108* | 19 | 75.807 | 59.508 | 458.673 | 1562.564 | 214.05 | 308.737 | 4.54 | 3125.128 | 428.1 |
| ДСТУ 8938 seamless tube 146x20 | 146 | 106* | 20 | 79.168 | 62.147 | 458.673 | 1610.676 | 220.641 | 320.187 | 4.511 | 3221.351 | 441.281 |
| ДСТУ 8938 seamless tube 146x22 | 146 | 102* | 22 | 85.703 | 67.277 | 458.673 | 1699.055 | 232.747 | 341.821 | 4.453 | 3398.11 | 465.495 |
| ДСТУ 8938 seamless tube 146x24 | 146 | 98* | 24 | 91.986 | 72.209 | 458.673 | 1777.626 | 243.51 | 361.824 | 4.396 | 3555.252 | 487.021 |
| ДСТУ 8938 seamless tube 146x25 | 146 | 96* | 25 | 95.033 | 74.601 | 458.673 | 1813.471 | 248.421 | 371.233 | 4.368 | 3626.941 | 496.841 |
| ДСТУ 8938 seamless tube 146x26 | 146 | 94* | 26 | 98.018 | 76.944 | 458.673 | 1847.143 | 253.033 | 380.259 | 4.341 | 3694.287 | 506.067 |
| ДСТУ 8938 seamless tube 146x28 | 146 | 90* | 28 | 103.798 | 81.482 | 458.673 | 1908.33 | 261.415 | 397.189 | 4.288 | 3816.661 | 522.83 |
| ДСТУ 8938 seamless tube 146x30 | 146 | 86* | 30 | 109.327 | 85.822 | 458.673 | 1961.881 | 268.751 | 412.68 | 4.236 | 3923.761 | 537.502 |
| ДСТУ 8938 seamless tube 146x32 | 146 | 82* | 32 | 114.605 | 89.965 | 458.673 | 2008.458 | 275.131 | 426.795 | 4.186 | 4016.916 | 550.262 |
| ДСТУ 8938 seamless tube 146x34 | 146 | 78* | 34 | 119.632 | 93.911 | 458.673 | 2048.695 | 280.643 | 439.597 | 4.138 | 4097.391 | 561.286 |
| ДСТУ 8938 seamless tube 146x35 | 146 | 76* | 35 | 122.051 | 95.81 | 458.673 | 2066.626 | 283.1 | 445.527 | 4.115 | 4133.253 | 566.199 |
| ДСТУ 8938 seamless tube 146x36 | 146 | 74* | 36 | 124.407 | 97.66 | 458.673 | 2083.196 | 285.369 | 451.152 | 4.092 | 4166.393 | 570.739 |
| ДСТУ 8938 seamless tube 152x4.5 | 152 | 143* | 4.5 | 20.852 | 16.369 | 477.522 | 567.613 | 74.686 | 97.934 | 5.217 | 1135.226 | 149.372 |
| ДСТУ 8938 seamless tube 152x5 | 152 | 142* | 5 | 23.091 | 18.126 | 477.522 | 624.43 | 82.162 | 108.087 | 5.2 | 1248.861 | 164.324 |
| ДСТУ 8938 seamless tube 152x5.5 | 152 | 141* | 5.5 | 25.313 | 19.871 | 477.522 | 680.06 | 89.482 | 118.098 | 5.183 | 1360.12 | 178.963 |
| ДСТУ 8938 seamless tube 152x6 | 152 | 140* | 6 | 27.52 | 21.603 | 477.522 | 734.518 | 96.647 | 127.968 | 5.166 | 1469.036 | 193.294 |
| ДСТУ 8938 seamless tube 152x6.5 | 152 | 139* | 6.5 | 29.712 | 23.324 | 477.522 | 787.822 | 103.661 | 137.698 | 5.149 | 1575.644 | 207.322 |
| ДСТУ 8938 seamless tube 152x7 | 152 | 138* | 7 | 31.887 | 25.031 | 477.522 | 839.988 | 110.525 | 147.289 | 5.132 | 1679.975 | 221.049 |
| ДСТУ 8938 seamless tube 152x7.5 | 152 | 137* | 7.5 | 34.047 | 26.727 | 477.522 | 891.032 | 117.241 | 156.743 | 5.116 | 1782.063 | 234.482 |
| ДСТУ 8938 seamless tube 152x8 | 152 | 136* | 8 | 36.191 | 28.41 | 477.522 | 940.97 | 123.812 | 166.059 | 5.099 | 1881.94 | 247.624 |
| ДСТУ 8938 seamless tube 152x8.5 | 152 | 135* | 8.5 | 38.32 | 30.081 | 477.522 | 989.819 | 130.239 | 175.239 | 5.082 | 1979.637 | 260.479 |
| ДСТУ 8938 seamless tube 152x9 | 152 | 134* | 9 | 40.432 | 31.739 | 477.522 | 1037.594 | 136.526 | 184.284 | 5.066 | 2075.188 | 273.051 |
| ДСТУ 8938 seamless tube 152x9.5 | 152 | 133* | 9.5 | 42.529 | 33.386 | 477.522 | 1084.311 | 142.673 | 193.195 | 5.049 | 2168.623 | 285.345 |
| ДСТУ 8938 seamless tube 152x10 | 152 | 132* | 10 | 44.611 | 35.019 | 477.522 | 1129.987 | 148.682 | 201.973 | 5.033 | 2259.974 | 297.365 |
| ДСТУ 8938 seamless tube 152x11 | 152 | 130* | 11 | 48.726 | 38.25 | 477.522 | 1218.274 | 160.299 | 219.135 | 5 | 2436.549 | 320.599 |
| ДСТУ 8938 seamless tube 152x12 | 152 | 128* | 12 | 52.779 | 41.431 | 477.522 | 1302.58 | 171.392 | 235.776 | 4.968 | 2605.159 | 342.784 |
| ДСТУ 8938 seamless tube 152x13 | 152 | 126* | 13 | 56.769 | 44.563 | 477.522 | 1383.025 | 181.977 | 251.905 | 4.936 | 2766.049 | 363.954 |
| ДСТУ 8938 seamless tube 152x14 | 152 | 124* | 14 | 60.696 | 47.646 | 477.522 | 1459.728 | 192.07 | 267.531 | 4.904 | 2919.457 | 384.139 |
| ДСТУ 8938 seamless tube 152x15 | 152 | 122* | 15 | 64.56 | 50.679 | 477.522 | 1532.809 | 201.685 | 282.66 | 4.873 | 3065.619 | 403.371 |
| ДСТУ 8938 seamless tube 152x16 | 152 | 120* | 16 | 68.361 | 53.663 | 477.522 | 1602.383 | 210.84 | 297.301 | 4.841 | 3204.766 | 421.68 |
| ДСТУ 8938 seamless tube 152x17 | 152 | 118* | 17 | 72.1 | 56.598 | 477.522 | 1668.564 | 219.548 | 311.463 | 4.811 | 3337.128 | 439.096 |
| ДСТУ 8938 seamless tube 152x18 | 152 | 116* | 18 | 75.775 | 59.484 | 477.522 | 1731.464 | 227.824 | 325.152 | 4.78 | 3462.927 | 455.648 |
| ДСТУ 8938 seamless tube 152x19 | 152 | 114* | 19 | 79.388 | 62.32 | 477.522 | 1791.193 | 235.683 | 338.377 | 4.75 | 3582.386 | 471.367 |
| ДСТУ 8938 seamless tube 152x20 | 152 | 112* | 20 | 82.938 | 65.106 | 477.522 | 1847.86 | 243.139 | 351.147 | 4.72 | 3695.719 | 486.279 |
| ДСТУ 8938 seamless tube 152x22 | 152 | 108* | 22 | 89.85 | 70.532 | 477.522 | 1952.431 | 256.899 | 375.349 | 4.662 | 3904.861 | 513.798 |
| ДСТУ 8938 seamless tube 152x24 | 152 | 104* | 24 | 96.51 | 75.76 | 477.522 | 2046.006 | 269.211 | 397.824 | 4.604 | 4092.012 | 538.423 |
| ДСТУ 8938 seamless tube 152x25 | 152 | 102* | 25 | 99.746 | 78.3 | 477.522 | 2088.922 | 274.858 | 408.433 | 4.576 | 4177.843 | 549.716 |
| ДСТУ 8938 seamless tube 152x26 | 152 | 100* | 26 | 102.919 | 80.791 | 477.522 | 2129.385 | 280.182 | 418.635 | 4.549 | 4258.771 | 560.365 |
| ДСТУ 8938 seamless tube 152x28 | 152 | 96* | 28 | 109.076 | 85.625 | 477.522 | 2203.337 | 289.913 | 437.845 | 4.494 | 4406.674 | 579.826 |
| ДСТУ 8938 seamless tube 152x30 | 152 | 92* | 30 | 114.982 | 90.261 | 477.522 | 2268.601 | 298.5 | 455.52 | 4.442 | 4537.201 | 597 |
| ДСТУ 8938 seamless tube 152x32 | 152 | 88* | 32 | 120.637 | 94.7 | 477.522 | 2325.884 | 306.037 | 471.723 | 4.391 | 4651.769 | 612.075 |
| ДСТУ 8938 seamless tube 152x34 | 152 | 84* | 34 | 126.041 | 98.942 | 477.522 | 2375.867 | 312.614 | 486.517 | 4.342 | 4751.734 | 625.228 |
| ДСТУ 8938 seamless tube 152x35 | 152 | 82* | 35 | 128.648 | 100.989 | 477.522 | 2398.324 | 315.569 | 493.407 | 4.318 | 4796.649 | 631.138 |
| ДСТУ 8938 seamless tube 152x36 | 152 | 80* | 36 | 131.193 | 102.986 | 477.522 | 2419.197 | 318.315 | 499.968 | 4.294 | 4838.394 | 636.631 |
| ДСТУ 8938 seamless tube 159x4.5 | 159 | 150* | 4.5 | 21.842 | 17.146 | 499.513 | 652.268 | 82.046 | 107.447 | 5.465 | 1304.536 | 164.093 |
| ДСТУ 8938 seamless tube 159x5 | 159 | 149* | 5 | 24.19 | 18.989 | 499.513 | 717.876 | 90.299 | 118.622 | 5.448 | 1435.753 | 180.598 |
| ДСТУ 8938 seamless tube 159x5.5 | 159 | 148* | 5.5 | 26.523 | 20.82 | 499.513 | 782.177 | 98.387 | 129.648 | 5.431 | 1564.354 | 196.774 |
| ДСТУ 8938 seamless tube 159x6 | 159 | 147* | 6 | 28.84 | 22.639 | 499.513 | 845.187 | 106.313 | 140.526 | 5.414 | 1690.374 | 212.626 |
| ДСТУ 8938 seamless tube 159x6.5 | 159 | 146* | 6.5 | 31.141 | 24.446 | 499.513 | 906.924 | 114.079 | 151.257 | 5.397 | 1813.849 | 228.157 |
| ДСТУ 8938 seamless tube 159x7 | 159 | 145* | 7 | 33.427 | 26.24 | 499.513 | 967.406 | 121.686 | 161.842 | 5.38 | 1934.812 | 243.373 |
| ДСТУ 8938 seamless tube 159x7.5 | 159 | 144* | 7.5 | 35.696 | 28.022 | 499.513 | 1026.649 | 129.138 | 172.283 | 5.363 | 2053.298 | 258.277 |
| ДСТУ 8938 seamless tube 159x8 | 159 | 143* | 8 | 37.95 | 29.791 | 499.513 | 1084.671 | 136.437 | 182.579 | 5.346 | 2169.342 | 272.873 |
| ДСТУ 8938 seamless tube 159x8.5 | 159 | 142* | 8.5 | 40.189 | 31.548 | 499.513 | 1141.488 | 143.583 | 192.732 | 5.329 | 2282.976 | 287.167 |
| ДСТУ 8938 seamless tube 159x9 | 159 | 141* | 9 | 42.412 | 33.293 | 499.513 | 1197.118 | 150.581 | 202.743 | 5.313 | 2394.235 | 301.162 |
| ДСТУ 8938 seamless tube 159x9.5 | 159 | 140* | 9.5 | 44.618 | 35.025 | 499.513 | 1251.576 | 157.431 | 212.613 | 5.296 | 2503.152 | 314.862 |
| ДСТУ 8938 seamless tube 159x10 | 159 | 139* | 10 | 46.81 | 36.746 | 499.513 | 1304.88 | 164.136 | 222.343 | 5.28 | 2609.76 | 328.272 |
| ДСТУ 8938 seamless tube 159x11 | 159 | 137* | 11 | 51.145 | 40.149 | 499.513 | 1408.089 | 177.118 | 241.388 | 5.247 | 2816.179 | 354.236 |
| ДСТУ 8938 seamless tube 159x12 | 159 | 135* | 12 | 55.418 | 43.503 | 499.513 | 1506.876 | 189.544 | 259.884 | 5.215 | 3013.753 | 379.088 |
| ДСТУ 8938 seamless tube 159x13 | 159 | 133* | 13 | 59.627 | 46.808 | 499.513 | 1601.369 | 201.43 | 277.84 | 5.182 | 3202.738 | 402.86 |
| ДСТУ 8938 seamless tube 159x14 | 159 | 131* | 14 | 63.774 | 50.063 | 499.513 | 1691.694 | 212.792 | 295.265 | 5.15 | 3383.388 | 425.583 |
| ДСТУ 8938 seamless tube 159x15 | 159 | 129* | 15 | 67.858 | 53.269 | 499.513 | 1777.975 | 223.645 | 312.165 | 5.119 | 3555.95 | 447.289 |
* Calculated value: worked out from the dimensions the standard specifies, not listed in the standard itself.