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 102x7 | 102 | 88* | 7 | 20.892 | 16.4 | 320.442 | 236.963 | 46.463 | 63.289 | 3.368 | 473.926 | 92.927 |
| ДСТУ 8938 seamless tube 102x7.5 | 102 | 87* | 7.5 | 22.266 | 17.479 | 320.442 | 250.117 | 49.043 | 67.118 | 3.352 | 500.234 | 98.085 |
| ДСТУ 8938 seamless tube 102x8 | 102 | 86* | 8 | 23.625 | 18.545 | 320.442 | 262.826 | 51.534 | 70.859 | 3.335 | 525.651 | 103.069 |
| ДСТУ 8938 seamless tube 102x8.5 | 102 | 85* | 8.5 | 24.968 | 19.6 | 320.442 | 275.098 | 53.941 | 74.514 | 3.319 | 550.197 | 107.882 |
| ДСТУ 8938 seamless tube 102x9 | 102 | 84* | 9 | 26.295 | 20.642 | 320.442 | 286.946 | 56.264 | 78.084 | 3.303 | 573.891 | 112.528 |
| ДСТУ 8938 seamless tube 102x9.5 | 102 | 83* | 9.5 | 27.607 | 21.671 | 320.442 | 298.377 | 58.505 | 81.57 | 3.288 | 596.754 | 117.011 |
| ДСТУ 8938 seamless tube 102x10 | 102 | 82* | 10 | 28.903 | 22.689 | 320.442 | 309.403 | 60.667 | 84.973 | 3.272 | 618.806 | 121.334 |
| ДСТУ 8938 seamless tube 102x11 | 102 | 80* | 11 | 31.447 | 24.686 | 320.442 | 330.276 | 64.76 | 91.535 | 3.241 | 660.551 | 129.52 |
| ДСТУ 8938 seamless tube 102x12 | 102 | 78* | 12 | 33.929 | 26.634 | 320.442 | 349.64 | 68.557 | 97.776 | 3.21 | 699.281 | 137.114 |
| ДСТУ 8938 seamless tube 102x13 | 102 | 76* | 13 | 36.348 | 28.533 | 320.442 | 367.571 | 72.073 | 103.705 | 3.18 | 735.143 | 144.146 |
| ДСТУ 8938 seamless tube 102x14 | 102 | 74* | 14 | 38.704 | 30.383 | 320.442 | 384.141 | 75.322 | 109.331 | 3.15 | 768.283 | 150.644 |
| ДСТУ 8938 seamless tube 102x15 | 102 | 72* | 15 | 40.998 | 32.183 | 320.442 | 399.421 | 78.318 | 114.66 | 3.121 | 798.842 | 156.636 |
| ДСТУ 8938 seamless tube 102x16 | 102 | 70* | 16 | 43.228 | 33.934 | 320.442 | 413.479 | 81.074 | 119.701 | 3.093 | 826.958 | 162.149 |
| ДСТУ 8938 seamless tube 102x17 | 102 | 68* | 17 | 45.396 | 35.636 | 320.442 | 426.382 | 83.604 | 124.463 | 3.065 | 852.764 | 167.209 |
| ДСТУ 8938 seamless tube 102x18 | 102 | 66* | 18 | 47.501 | 37.288 | 320.442 | 438.196 | 85.921 | 128.952 | 3.037 | 876.391 | 171.841 |
| ДСТУ 8938 seamless tube 102x19 | 102 | 64* | 19 | 49.543 | 38.891 | 320.442 | 448.983 | 88.036 | 133.177 | 3.01 | 897.965 | 176.072 |
| ДСТУ 8938 seamless tube 102x20 | 102 | 62* | 20 | 51.522 | 40.445 | 320.442 | 458.804 | 89.962 | 137.147 | 2.984 | 917.609 | 179.923 |
| ДСТУ 8938 seamless tube 102x22 | 102 | 58* | 22 | 55.292 | 43.404 | 320.442 | 475.788 | 93.292 | 144.349 | 2.933 | 951.576 | 186.583 |
| ДСТУ 8938 seamless tube 102x24 | 102 | 54* | 24 | 58.811 | 46.166 | 320.442 | 489.598 | 96 | 150.624 | 2.885 | 979.197 | 191.999 |
| ДСТУ 8938 seamless tube 104x4 | 104 | 96* | 4 | 12.566 | 9.865 | 326.726 | 157.331 | 30.256 | 40.021 | 3.538 | 314.662 | 60.512 |
| ДСТУ 8938 seamless tube 104x4.5 | 104 | 95* | 4.5 | 14.066 | 11.042 | 326.726 | 174.433 | 33.545 | 44.582 | 3.521 | 348.866 | 67.09 |
| ДСТУ 8938 seamless tube 104x5 | 104 | 94* | 5 | 15.551 | 12.207 | 326.726 | 191.004 | 36.731 | 49.047 | 3.505 | 382.007 | 73.463 |
| ДСТУ 8938 seamless tube 104x5.5 | 104 | 93* | 5.5 | 17.02 | 13.36 | 326.726 | 207.054 | 39.818 | 53.418 | 3.488 | 414.108 | 79.636 |
| ДСТУ 8938 seamless tube 104x6 | 104 | 92* | 6 | 18.473 | 14.501 | 326.726 | 222.594 | 42.807 | 57.696 | 3.471 | 445.189 | 85.613 |
| ДСТУ 8938 seamless tube 104x6.5 | 104 | 91* | 6.5 | 19.91 | 15.629 | 326.726 | 237.636 | 45.699 | 61.882 | 3.455 | 475.273 | 91.399 |
| ДСТУ 8938 seamless tube 104x7 | 104 | 90* | 7 | 21.331 | 16.745 | 326.726 | 252.191 | 48.498 | 65.977 | 3.438 | 504.381 | 96.996 |
| ДСТУ 8938 seamless tube 104x7.5 | 104 | 89* | 7.5 | 22.737 | 17.849 | 326.726 | 266.268 | 51.205 | 69.983 | 3.422 | 532.535 | 102.411 |
| ДСТУ 8938 seamless tube 104x8 | 104 | 88* | 8 | 24.127 | 18.94 | 326.726 | 279.878 | 53.823 | 73.899 | 3.406 | 559.756 | 107.645 |
| ДСТУ 8938 seamless tube 104x8.5 | 104 | 87* | 8.5 | 25.502 | 20.019 | 326.726 | 293.033 | 56.352 | 77.727 | 3.39 | 586.065 | 112.705 |
| ДСТУ 8938 seamless tube 104x9 | 104 | 86* | 9 | 26.861 | 21.086 | 326.726 | 305.741 | 58.796 | 81.468 | 3.374 | 611.482 | 117.593 |
| ДСТУ 8938 seamless tube 104x9.5 | 104 | 85* | 9.5 | 28.204 | 22.14 | 326.726 | 318.014 | 61.156 | 85.123 | 3.358 | 636.028 | 122.313 |
| ДСТУ 8938 seamless tube 104x10 | 104 | 84* | 10 | 29.531 | 23.182 | 326.726 | 329.861 | 63.435 | 88.693 | 3.342 | 659.722 | 126.87 |
| ДСТУ 8938 seamless tube 104x11 | 104 | 82* | 11 | 32.138 | 25.229 | 326.726 | 352.318 | 67.754 | 95.583 | 3.311 | 704.636 | 135.507 |
| ДСТУ 8938 seamless tube 104x12 | 104 | 80* | 12 | 34.683 | 27.226 | 326.726 | 373.191 | 71.768 | 102.144 | 3.28 | 746.382 | 143.535 |
| ДСТУ 8938 seamless tube 104x13 | 104 | 78* | 13 | 37.165 | 29.175 | 326.726 | 392.556 | 75.491 | 108.385 | 3.25 | 785.111 | 150.983 |
| ДСТУ 8938 seamless tube 104x14 | 104 | 76* | 14 | 39.584 | 31.073 | 326.726 | 410.487 | 78.94 | 114.315 | 3.22 | 820.974 | 157.88 |
| ДСТУ 8938 seamless tube 104x15 | 104 | 74* | 15 | 41.94 | 32.923 | 326.726 | 427.057 | 82.126 | 119.94 | 3.191 | 854.113 | 164.253 |
| ДСТУ 8938 seamless tube 104x16 | 104 | 72* | 16 | 44.234 | 34.723 | 326.726 | 442.336 | 85.065 | 125.269 | 3.162 | 884.672 | 170.129 |
| ДСТУ 8938 seamless tube 104x17 | 104 | 70* | 17 | 46.464 | 36.474 | 326.726 | 456.394 | 87.768 | 130.311 | 3.134 | 912.788 | 175.536 |
| ДСТУ 8938 seamless tube 104x18 | 104 | 68* | 18 | 48.632 | 38.176 | 326.726 | 469.297 | 90.249 | 135.072 | 3.106 | 938.595 | 180.499 |
| ДСТУ 8938 seamless tube 104x19 | 104 | 66* | 19 | 50.737 | 39.828 | 326.726 | 481.111 | 92.521 | 139.561 | 3.079 | 962.222 | 185.043 |
| ДСТУ 8938 seamless tube 104x20 | 104 | 64* | 20 | 52.779 | 41.431 | 326.726 | 491.898 | 94.596 | 143.787 | 3.053 | 983.796 | 189.192 |
| ДСТУ 8938 seamless tube 104x22 | 104 | 60* | 22 | 56.674 | 44.489 | 326.726 | 510.636 | 98.199 | 151.477 | 3.002 | 1021.271 | 196.398 |
| ДСТУ 8938 seamless tube 104x24 | 104 | 56* | 24 | 60.319 | 47.35 | 326.726 | 525.978 | 101.15 | 158.208 | 2.953 | 1051.956 | 202.299 |
| ДСТУ 8938 seamless tube 108x4 | 108 | 100* | 4 | 13.069 | 10.259 | 339.292 | 176.955 | 32.769 | 43.285 | 3.68 | 353.909 | 65.539 |
| ДСТУ 8938 seamless tube 108x4.5 | 108 | 99* | 4.5 | 14.632 | 11.486 | 339.292 | 196.297 | 36.351 | 48.236 | 3.663 | 392.594 | 72.703 |
| ДСТУ 8938 seamless tube 108x5 | 108 | 98* | 5 | 16.179 | 12.701 | 339.292 | 215.062 | 39.826 | 53.087 | 3.646 | 430.124 | 79.653 |
| ДСТУ 8938 seamless tube 108x5.5 | 108 | 97* | 5.5 | 17.711 | 13.903 | 339.292 | 233.261 | 43.197 | 57.84 | 3.629 | 466.523 | 86.393 |
| ДСТУ 8938 seamless tube 108x6 | 108 | 96* | 6 | 19.227 | 15.093 | 339.292 | 250.906 | 46.464 | 62.496 | 3.612 | 501.813 | 92.928 |
| ДСТУ 8938 seamless tube 108x6.5 | 108 | 95* | 6.5 | 20.727 | 16.27 | 339.292 | 268.009 | 49.631 | 67.056 | 3.596 | 536.017 | 99.262 |
| ДСТУ 8938 seamless tube 108x7 | 108 | 94* | 7 | 22.211 | 17.436 | 339.292 | 284.579 | 52.7 | 71.521 | 3.579 | 569.158 | 105.4 |
| ДСТУ 8938 seamless tube 108x7.5 | 108 | 93* | 7.5 | 23.68 | 18.589 | 339.292 | 300.629 | 55.672 | 75.893 | 3.563 | 601.259 | 111.344 |
| ДСТУ 8938 seamless tube 108x8 | 108 | 92* | 8 | 25.133 | 19.729 | 339.292 | 316.17 | 58.55 | 80.171 | 3.547 | 632.34 | 117.1 |
| ДСТУ 8938 seamless tube 108x8.5 | 108 | 91* | 8.5 | 26.57 | 20.857 | 339.292 | 331.212 | 61.336 | 84.357 | 3.531 | 662.424 | 122.671 |
| ДСТУ 8938 seamless tube 108x9 | 108 | 90* | 9 | 27.992 | 21.973 | 339.292 | 345.766 | 64.031 | 88.452 | 3.515 | 691.532 | 128.062 |
| ДСТУ 8938 seamless tube 108x9.5 | 108 | 89* | 9.5 | 29.397 | 23.077 | 339.292 | 359.843 | 66.638 | 92.457 | 3.499 | 719.686 | 133.275 |
| ДСТУ 8938 seamless tube 108x10 | 108 | 88* | 10 | 30.788 | 24.168 | 339.292 | 373.454 | 69.158 | 96.373 | 3.483 | 746.907 | 138.316 |
| ДСТУ 8938 seamless tube 108x11 | 108 | 86* | 11 | 33.521 | 26.314 | 339.292 | 399.316 | 73.947 | 103.943 | 3.451 | 798.633 | 147.895 |
| ДСТУ 8938 seamless tube 108x12 | 108 | 84* | 12 | 36.191 | 28.41 | 339.292 | 423.436 | 78.414 | 111.168 | 3.421 | 846.873 | 156.828 |
| ДСТУ 8938 seamless tube 108x13 | 108 | 82* | 13 | 38.799 | 30.457 | 339.292 | 445.894 | 82.573 | 118.057 | 3.39 | 891.787 | 165.146 |
| ДСТУ 8938 seamless tube 108x14 | 108 | 80* | 14 | 41.343 | 32.455 | 339.292 | 466.767 | 86.438 | 124.619 | 3.36 | 933.533 | 172.876 |
| ДСТУ 8938 seamless tube 108x15 | 108 | 78* | 15 | 43.825 | 34.403 | 339.292 | 486.131 | 90.024 | 130.86 | 3.331 | 972.262 | 180.049 |
| ДСТУ 8938 seamless tube 108x16 | 108 | 76* | 16 | 46.244 | 36.302 | 339.292 | 504.062 | 93.345 | 136.789 | 3.302 | 1008.125 | 186.69 |
| ДСТУ 8938 seamless tube 108x17 | 108 | 74* | 17 | 48.6 | 38.151 | 339.292 | 520.632 | 96.413 | 142.415 | 3.273 | 1041.264 | 192.827 |
| ДСТУ 8938 seamless tube 108x18 | 108 | 72* | 18 | 50.894 | 39.952 | 339.292 | 535.912 | 99.243 | 147.744 | 3.245 | 1071.823 | 198.486 |
| ДСТУ 8938 seamless tube 108x19 | 108 | 70* | 19 | 53.124 | 41.703 | 339.292 | 549.97 | 101.846 | 152.785 | 3.218 | 1099.939 | 203.692 |
| ДСТУ 8938 seamless tube 108x20 | 108 | 68* | 20 | 55.292 | 43.404 | 339.292 | 562.873 | 104.236 | 157.547 | 3.191 | 1125.746 | 208.471 |
| ДСТУ 8938 seamless tube 108x22 | 108 | 64* | 22 | 59.439 | 46.66 | 339.292 | 585.473 | 108.421 | 166.261 | 3.138 | 1170.947 | 216.842 |
| ДСТУ 8938 seamless tube 108x24 | 108 | 60* | 24 | 63.335 | 49.718 | 339.292 | 604.211 | 111.891 | 173.952 | 3.089 | 1208.422 | 223.782 |
| ДСТУ 8938 seamless tube 108x25 | 108 | 58* | 25 | 65.188 | 51.173 | 339.292 | 612.279 | 113.385 | 177.433 | 3.065 | 1224.557 | 226.77 |
| ДСТУ 8938 seamless tube 108x26 | 108 | 56* | 26 | 66.979 | 52.578 | 339.292 | 619.553 | 114.732 | 180.683 | 3.041 | 1239.107 | 229.464 |
| ДСТУ 8938 seamless tube 108x28 | 108 | 52* | 28 | 70.372 | 55.242 | 339.292 | 631.938 | 117.025 | 186.517 | 2.997 | 1263.875 | 234.051 |
| ДСТУ 8938 seamless tube 114x4 | 114 | 106* | 4 | 13.823 | 10.851 | 358.142 | 209.349 | 36.728 | 48.421 | 3.892 | 418.699 | 73.456 |
| ДСТУ 8938 seamless tube 114x4.5 | 114 | 105* | 4.5 | 15.48 | 12.152 | 358.142 | 232.406 | 40.773 | 53.987 | 3.875 | 464.812 | 81.546 |
| ДСТУ 8938 seamless tube 114x5 | 114 | 104* | 5 | 17.122 | 13.441 | 358.142 | 254.813 | 44.704 | 59.447 | 3.858 | 509.627 | 89.408 |
| ДСТУ 8938 seamless tube 114x5.5 | 114 | 103* | 5.5 | 18.747 | 14.717 | 358.142 | 276.584 | 48.523 | 64.803 | 3.841 | 553.167 | 97.047 |
| ДСТУ 8938 seamless tube 114x6 | 114 | 102* | 6 | 20.358 | 15.981 | 358.142 | 297.729 | 52.233 | 70.056 | 3.824 | 595.457 | 104.466 |
| ДСТУ 8938 seamless tube 114x6.5 | 114 | 101* | 6.5 | 21.952 | 17.232 | 358.142 | 318.261 | 55.835 | 75.207 | 3.808 | 636.522 | 111.671 |
| ДСТУ 8938 seamless tube 114x7 | 114 | 100* | 7 | 23.531 | 18.471 | 358.142 | 338.193 | 59.332 | 80.257 | 3.791 | 676.385 | 118.664 |
| ДСТУ 8938 seamless tube 114x7.5 | 114 | 99* | 7.5 | 25.093 | 19.698 | 358.142 | 357.535 | 62.725 | 85.208 | 3.775 | 715.07 | 125.451 |
| ДСТУ 8938 seamless tube 114x8 | 114 | 98* | 8 | 26.641 | 20.913 | 358.142 | 376.3 | 66.018 | 90.059 | 3.758 | 752.6 | 132.035 |
| ДСТУ 8938 seamless tube 114x8.5 | 114 | 97* | 8.5 | 28.172 | 22.115 | 358.142 | 394.499 | 69.21 | 94.812 | 3.742 | 788.999 | 138.421 |
| ДСТУ 8938 seamless tube 114x9 | 114 | 96* | 9 | 29.688 | 23.305 | 358.142 | 412.144 | 72.306 | 99.468 | 3.726 | 824.289 | 144.612 |
| ДСТУ 8938 seamless tube 114x9.5 | 114 | 95* | 9.5 | 31.188 | 24.483 | 358.142 | 429.247 | 75.306 | 104.028 | 3.71 | 858.493 | 150.613 |
| ДСТУ 8938 seamless tube 114x10 | 114 | 94* | 10 | 32.673 | 25.648 | 358.142 | 445.817 | 78.214 | 108.493 | 3.694 | 891.634 | 156.427 |
| ДСТУ 8938 seamless tube 114x11 | 114 | 92* | 11 | 35.594 | 27.941 | 358.142 | 477.408 | 83.756 | 117.143 | 3.662 | 954.816 | 167.512 |
| ДСТУ 8938 seamless tube 114x12 | 114 | 90* | 12 | 38.453 | 30.186 | 358.142 | 507.004 | 88.948 | 125.424 | 3.631 | 1014.008 | 177.896 |
| ДСТУ 8938 seamless tube 114x13 | 114 | 88* | 13 | 41.249 | 32.381 | 358.142 | 534.692 | 93.806 | 133.345 | 3.6 | 1069.383 | 187.611 |
| ДСТУ 8938 seamless tube 114x14 | 114 | 86* | 14 | 43.982 | 34.526 | 358.142 | 560.554 | 98.343 | 140.915 | 3.57 | 1121.109 | 196.686 |
| ДСТУ 8938 seamless tube 114x15 | 114 | 84* | 15 | 46.653 | 36.622 | 358.142 | 584.674 | 102.574 | 148.14 | 3.54 | 1169.349 | 205.149 |
| ДСТУ 8938 seamless tube 114x16 | 114 | 82* | 16 | 49.26 | 38.669 | 358.142 | 607.132 | 106.514 | 155.029 | 3.511 | 1214.263 | 213.029 |
| ДСТУ 8938 seamless tube 114x17 | 114 | 80* | 17 | 51.805 | 40.667 | 358.142 | 628.004 | 110.176 | 161.591 | 3.482 | 1256.009 | 220.352 |
| ДСТУ 8938 seamless tube 114x18 | 114 | 78* | 18 | 54.287 | 42.615 | 358.142 | 647.369 | 113.574 | 167.832 | 3.453 | 1294.738 | 227.147 |
| ДСТУ 8938 seamless tube 114x19 | 114 | 76* | 19 | 56.706 | 44.514 | 358.142 | 665.3 | 116.719 | 173.761 | 3.425 | 1330.6 | 233.439 |
| ДСТУ 8938 seamless tube 114x20 | 114 | 74* | 20 | 59.062 | 46.364 | 358.142 | 681.87 | 119.626 | 179.387 | 3.398 | 1363.74 | 239.253 |
| ДСТУ 8938 seamless tube 114x22 | 114 | 70* | 22 | 63.586 | 49.915 | 358.142 | 711.208 | 124.773 | 189.757 | 3.344 | 1422.415 | 249.547 |
| ДСТУ 8938 seamless tube 114x24 | 114 | 66* | 24 | 67.858 | 53.269 | 358.142 | 735.924 | 129.11 | 199.008 | 3.293 | 1471.849 | 258.219 |
| ДСТУ 8938 seamless tube 114x25 | 114 | 64* | 25 | 69.9 | 54.872 | 358.142 | 746.711 | 131.002 | 203.233 | 3.268 | 1493.423 | 262.004 |
| ДСТУ 8938 seamless tube 114x26 | 114 | 62* | 26 | 71.88 | 56.426 | 358.142 | 756.533 | 132.725 | 207.203 | 3.244 | 1513.066 | 265.45 |
| ДСТУ 8938 seamless tube 114x28 | 114 | 58* | 28 | 75.65 | 59.385 | 358.142 | 773.517 | 135.705 | 214.405 | 3.198 | 1547.033 | 271.409 |
* Calculated value: worked out from the dimensions the standard specifies, not listed in the standard itself.