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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.

ДСТУ 8938

Geometry

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Outer diameter
Inner diameter
Wall thickness
Section area
Mass per metre
Section perimeter
Second moment of area
Elastic section modulus
Plastic section modulus
Radius of gyration
Torsional constant
Torsional modulus
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 63.5x14 63.5 35.5* 14 21.771 17.09 199.491 72.015 22.682 35.218 1.819 144.03 45.364
ДСТУ 8938 seamless tube 68x3 68 62* 3 6.126 4.809 213.628 32.422 9.536 12.684 2.301 64.845 19.072
ДСТУ 8938 seamless tube 68x3.2 68 61.6* 3.2 6.514 5.114 213.628 34.276 10.081 13.448 2.294 68.552 20.162
ДСТУ 8938 seamless tube 68x3.5 68 61* 3.5 7.092 5.567 213.628 36.99 10.879 14.575 2.284 73.98 21.759
ДСТУ 8938 seamless tube 68x4 68 60* 4 8.042 6.313 213.628 41.338 12.158 16.405 2.267 82.677 24.317
ДСТУ 8938 seamless tube 68x4.5 68 59* 4.5 8.977 7.047 213.628 45.475 13.375 18.176 2.251 90.949 26.75
ДСТУ 8938 seamless tube 68x5 68 58* 5 9.896 7.768 213.628 49.406 14.531 19.887 2.234 98.812 29.062
ДСТУ 8938 seamless tube 68x5.5 68 57* 5.5 10.799 8.477 213.628 53.139 15.629 21.54 2.218 106.278 31.258
ДСТУ 8938 seamless tube 68x6 68 56* 6 11.687 9.174 213.628 56.681 16.671 23.136 2.202 113.361 33.342
ДСТУ 8938 seamless tube 68x6.5 68 55* 6.5 12.559 9.858 213.628 60.038 17.658 24.676 2.186 120.075 35.316
ДСТУ 8938 seamless tube 68x7 68 54* 7 13.415 10.53 213.628 63.216 18.593 26.161 2.171 126.433 37.186
ДСТУ 8938 seamless tube 68x7.5 68 53* 7.5 14.255 11.19 213.628 66.223 19.477 27.593 2.155 132.447 38.955
ДСТУ 8938 seamless tube 68x8 68 52* 8 15.08 11.838 213.628 69.065 20.313 28.971 2.14 138.13 40.626
ДСТУ 8938 seamless tube 68x8.5 68 51* 8.5 15.889 12.473 213.628 71.747 21.102 30.297 2.125 143.494 42.204
ДСТУ 8938 seamless tube 68x9 68 50* 9 16.682 13.095 213.628 74.276 21.846 31.572 2.11 148.552 43.692
ДСТУ 8938 seamless tube 68x9.5 68 49* 9.5 17.459 13.706 213.628 76.658 22.546 32.797 2.095 153.315 45.093
ДСТУ 8938 seamless tube 68x10 68 48* 10 18.221 14.304 213.628 78.898 23.205 33.973 2.081 157.796 46.411
ДСТУ 8938 seamless tube 68x11 68 46* 11 19.698 15.463 213.628 82.977 24.405 36.183 2.052 165.954 48.81
ДСТУ 8938 seamless tube 68x12 68 44* 12 21.112 16.573 213.628 86.557 25.458 38.208 2.025 173.114 50.916
ДСТУ 8938 seamless tube 68x13 68 42* 13 22.462 17.633 213.628 89.681 26.377 40.057 1.998 179.362 52.754
ДСТУ 8938 seamless tube 68x14 68 40* 14 23.75 18.644 213.628 92.389 27.173 41.739 1.972 184.778 54.347
ДСТУ 8938 seamless tube 68x15 68 38* 15 24.976 19.606 213.628 94.72 27.859 43.26 1.947 189.44 55.718
ДСТУ 8938 seamless tube 68x16 68 36* 16 26.138 20.518 213.628 96.711 28.444 44.629 1.924 193.422 56.889
ДСТУ 8938 seamless tube 70x3 70 64* 3 6.315 4.957 219.911 35.504 10.144 13.476 2.371 71.008 20.288
ДСТУ 8938 seamless tube 70x3.2 70 63.6* 3.2 6.715 5.272 219.911 37.543 10.727 14.29 2.364 75.087 21.453
ДСТУ 8938 seamless tube 70x3.5 70 63* 3.5 7.312 5.74 219.911 40.532 11.58 15.492 2.354 81.063 23.161
ДСТУ 8938 seamless tube 70x4 70 62* 4 8.294 6.511 219.911 45.326 12.95 17.445 2.338 90.651 25.9
ДСТУ 8938 seamless tube 70x4.5 70 61* 4.5 9.26 7.269 219.911 49.893 14.255 19.337 2.321 99.786 28.51
ДСТУ 8938 seamless tube 70x5 70 60* 5 10.21 8.015 219.911 54.242 15.498 21.167 2.305 108.483 30.995
ДСТУ 8938 seamless tube 70x5.5 70 59* 5.5 11.145 8.749 219.911 58.378 16.679 22.937 2.289 116.756 33.359
ДСТУ 8938 seamless tube 70x6 70 58* 6 12.064 9.47 219.911 62.309 17.803 24.648 2.273 124.618 35.605
ДСТУ 8938 seamless tube 70x6.5 70 57* 6.5 12.967 10.179 219.911 66.042 18.869 26.301 2.257 132.084 37.738
ДСТУ 8938 seamless tube 70x7 70 56* 7 13.854 10.876 219.911 69.584 19.881 27.897 2.241 139.168 39.762
ДСТУ 8938 seamless tube 70x7.5 70 55* 7.5 14.726 11.56 219.911 72.941 20.84 29.438 2.226 145.882 41.68
ДСТУ 8938 seamless tube 70x8 70 54* 8 15.582 12.232 219.911 76.12 21.748 30.923 2.21 152.239 43.497
ДСТУ 8938 seamless tube 70x8.5 70 53* 8.5 16.423 12.892 219.911 79.127 22.608 32.354 2.195 158.253 45.215
ДСТУ 8938 seamless tube 70x9 70 52* 9 17.247 13.539 219.911 81.968 23.419 33.732 2.18 163.936 46.839
ДСТУ 8938 seamless tube 70x9.5 70 51* 9.5 18.056 14.174 219.911 84.65 24.186 35.058 2.165 169.3 48.372
ДСТУ 8938 seamless tube 70x10 70 50* 10 18.85 14.797 219.911 87.179 24.908 36.333 2.151 174.358 49.817
ДСТУ 8938 seamless tube 70x11 70 48* 11 20.389 16.005 219.911 91.801 26.229 38.735 2.122 183.602 52.458
ДСТУ 8938 seamless tube 70x12 70 46* 12 21.865 17.164 219.911 95.88 27.394 40.944 2.094 191.76 54.789
ДСТУ 8938 seamless tube 70x13 70 44* 13 23.279 18.274 219.911 99.46 28.417 42.969 2.067 198.921 56.835
ДСТУ 8938 seamless tube 70x14 70 42* 14 24.63 19.335 219.911 102.584 29.31 44.819 2.041 205.169 58.62
ДСТУ 8938 seamless tube 70x15 70 40* 15 25.918 20.346 219.911 105.292 30.084 46.5 2.016 210.585 60.167
ДСТУ 8938 seamless tube 70x16 70 38* 16 27.143 21.308 219.911 107.623 30.75 48.021 1.991 215.247 61.499
ДСТУ 8938 seamless tube 73x3 73 67* 3 6.597 5.179 229.336 40.483 11.091 14.709 2.477 80.966 22.182
ДСТУ 8938 seamless tube 73x3.2 73 66.6* 3.2 7.017 5.508 229.336 42.824 11.733 15.601 2.47 85.648 23.465
ДСТУ 8938 seamless tube 73x3.5 73 66* 3.5 7.642 5.999 229.336 46.258 12.673 16.92 2.46 92.515 25.347
ДСТУ 8938 seamless tube 73x4 73 65* 4 8.671 6.807 229.336 51.775 14.185 19.065 2.444 103.551 28.37
ДСТУ 8938 seamless tube 73x4.5 73 64* 4.5 9.684 7.602 229.336 57.045 15.629 21.146 2.427 114.089 31.257
ДСТУ 8938 seamless tube 73x5 73 63* 5 10.681 8.385 229.336 62.072 17.006 23.162 2.411 124.145 34.012
ДСТУ 8938 seamless tube 73x5.5 73 62* 5.5 11.663 9.156 229.336 66.866 18.32 25.115 2.394 133.733 36.639
ДСТУ 8938 seamless tube 73x6 73 61* 6 12.629 9.914 229.336 71.434 19.571 27.006 2.378 142.868 39.142
ДСТУ 8938 seamless tube 73x6.5 73 60* 6.5 13.58 10.66 229.336 75.782 20.762 28.836 2.362 151.565 41.525
ДСТУ 8938 seamless tube 73x7 73 59* 7 14.514 11.394 229.336 79.919 21.896 30.606 2.347 159.837 43.791
ДСТУ 8938 seamless tube 73x7.5 73 58* 7.5 15.433 12.115 229.336 83.85 22.973 32.318 2.331 167.7 45.945
ДСТУ 8938 seamless tube 73x8 73 57* 8 16.336 12.824 229.336 87.583 23.995 33.971 2.315 175.166 47.991
ДСТУ 8938 seamless tube 73x8.5 73 56* 8.5 17.224 13.521 229.336 91.125 24.966 35.567 2.3 182.249 49.931
ДСТУ 8938 seamless tube 73x9 73 55* 9 18.096 14.205 229.336 94.482 25.885 37.107 2.285 188.963 51.771
ДСТУ 8938 seamless tube 73x9.5 73 54* 9.5 18.952 14.877 229.336 97.66 26.756 38.592 2.27 195.321 53.512
ДСТУ 8938 seamless tube 73x10 73 53* 10 19.792 15.537 229.336 100.667 27.58 40.023 2.255 201.334 55.16
ДСТУ 8938 seamless tube 73x11 73 51* 11 21.426 16.819 229.336 106.191 29.093 42.728 2.226 212.382 58.187
ДСТУ 8938 seamless tube 73x12 73 49* 12 22.996 18.052 229.336 111.102 30.439 45.228 2.198 222.203 60.878
ДСТУ 8938 seamless tube 73x13 73 47* 13 24.504 19.236 229.336 115.446 31.629 47.532 2.171 230.893 63.258
ДСТУ 8938 seamless tube 73x14 73 45* 14 25.95 20.37 229.336 119.271 32.677 49.649 2.144 238.541 65.354
ДСТУ 8938 seamless tube 73x15 73 43* 15 27.332 21.456 229.336 122.618 33.594 51.585 2.118 245.235 67.188
ДСТУ 8938 seamless tube 73x16 73 41* 16 28.651 22.491 229.336 125.529 34.391 53.349 2.093 251.057 68.783
ДСТУ 8938 seamless tube 73x17 73 39* 17 29.908 23.478 229.336 128.043 35.08 54.95 2.069 256.087 70.161
ДСТУ 8938 seamless tube 73x18 73 37* 18 31.102 24.415 229.336 130.2 35.671 56.394 2.046 260.4 71.342
ДСТУ 8938 seamless tube 73x19 73 35* 19 32.233 25.303 229.336 132.033 36.174 57.69 2.024 264.067 72.347
ДСТУ 8938 seamless tube 76x3 76 70* 3 6.88 5.401 238.761 45.907 12.081 15.996 2.583 91.815 24.162
ДСТУ 8938 seamless tube 76x3.2 76 69.6* 3.2 7.319 5.745 238.761 48.578 12.784 16.97 2.576 97.157 25.568
ДСТУ 8938 seamless tube 76x3.5 76 69* 3.5 7.972 6.258 238.761 52.499 13.816 18.411 2.566 104.998 27.631
ДСТУ 8938 seamless tube 76x4 76 68* 4 9.048 7.103 238.761 58.811 15.476 20.757 2.55 117.621 30.953
ДСТУ 8938 seamless tube 76x4.5 76 67* 4.5 10.108 7.935 238.761 64.85 17.066 23.036 2.533 129.699 34.131
ДСТУ 8938 seamless tube 76x5 76 66* 5 11.153 8.755 238.761 70.624 18.585 25.247 2.516 141.248 37.171
ДСТУ 8938 seamless tube 76x5.5 76 65* 5.5 12.182 9.562 238.761 76.142 20.037 27.392 2.5 152.284 40.075
ДСТУ 8938 seamless tube 76x6 76 64* 6 13.195 10.358 238.761 81.411 21.424 29.472 2.484 162.822 42.848
ДСТУ 8938 seamless tube 76x6.5 76 63* 6.5 14.192 11.141 238.761 86.439 22.747 31.488 2.468 172.878 45.494
ДСТУ 8938 seamless tube 76x7 76 62* 7 15.174 11.912 238.761 91.233 24.009 33.441 2.452 182.466 48.017
ДСТУ 8938 seamless tube 76x7.5 76 61* 7.5 16.14 12.67 238.761 95.801 25.211 35.333 2.436 191.601 50.421
ДСТУ 8938 seamless tube 76x8 76 60* 8 17.09 13.416 238.761 100.149 26.355 37.163 2.421 200.298 52.71
ДСТУ 8938 seamless tube 76x8.5 76 59* 8.5 18.025 14.15 238.761 104.285 27.443 38.933 2.405 208.57 54.887
ДСТУ 8938 seamless tube 76x9 76 58* 9 18.944 14.871 238.761 108.216 28.478 40.644 2.39 216.433 56.956
ДСТУ 8938 seamless tube 76x9.5 76 57* 9.5 19.847 15.58 238.761 111.95 29.46 42.297 2.375 223.899 58.921
ДСТУ 8938 seamless tube 76x10 76 56* 10 20.735 16.277 238.761 115.491 30.392 43.893 2.36 230.982 60.785
ДСТУ 8938 seamless tube 76x11 76 54* 11 22.462 17.633 238.761 122.027 32.112 46.919 2.331 244.054 64.225
ДСТУ 8938 seamless tube 76x12 76 52* 12 24.127 18.94 238.761 127.875 33.651 49.728 2.302 255.751 67.303
ДСТУ 8938 seamless tube 76x13 76 50* 13 25.73 20.198 238.761 133.087 35.023 52.329 2.274 266.173 70.046
ДСТУ 8938 seamless tube 76x14 76 48* 14 27.269 21.406 238.761 137.709 36.239 54.731 2.247 275.417 72.478
ДСТУ 8938 seamless tube 76x15 76 46* 15 28.746 22.565 238.761 141.788 37.313 56.94 2.221 283.575 74.625
ДСТУ 8938 seamless tube 76x16 76 44* 16 30.159 23.675 238.761 145.368 38.255 58.965 2.195 290.736 76.509
ДСТУ 8938 seamless tube 76x17 76 42* 17 31.51 24.735 238.761 148.492 39.077 60.815 2.171 296.983 78.154
ДСТУ 8938 seamless tube 76x18 76 40* 18 32.798 25.747 238.761 151.2 39.789 62.496 2.147 302.4 79.579
ДСТУ 8938 seamless tube 76x19 76 38* 19 34.023 26.708 238.761 153.531 40.403 64.017 2.124 307.062 80.806
ДСТУ 8938 seamless tube 82.5x3.5 82.5 75.5* 3.5 8.687 6.819 259.181 67.899 16.46 21.858 2.796 135.797 32.921
ДСТУ 8938 seamless tube 82.5x4 82.5 74.5* 4 9.865 7.744 259.181 76.182 18.468 24.67 2.779 152.365 36.937
ДСТУ 8938 seamless tube 82.5x4.5 82.5 73.5* 4.5 11.027 8.656 259.181 84.139 20.397 27.408 2.762 168.279 40.795
ДСТУ 8938 seamless tube 82.5x5 82.5 72.5* 5 12.174 9.556 259.181 91.778 22.249 30.073 2.746 183.556 44.498
ДСТУ 8938 seamless tube 82.5x5.5 82.5 71.5* 5.5 13.305 10.444 259.181 99.107 24.026 32.665 2.729 198.214 48.052

* Calculated value: worked out from the dimensions the standard specifies, not listed in the standard itself.