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 356x40 | 356 | 276* | 40 | 397.097 | 311.721 | 1118.407 | 50359.881 | 2829.207 | 4015.573 | 11.261 | 100719.762 | 5658.414 |
| ДСТУ 8938 seamless tube 356x42 | 356 | 272* | 42 | 414.313 | 325.236 | 1118.407 | 51975.596 | 2919.977 | 4165.728 | 11.2 | 103951.192 | 5839.955 |
| ДСТУ 8938 seamless tube 356x45 | 356 | 266* | 45 | 439.666 | 345.138 | 1118.407 | 54269.06 | 3048.824 | 4382.82 | 11.11 | 108538.12 | 6097.647 |
| ДСТУ 8938 seamless tube 356x48 | 356 | 260* | 48 | 464.453 | 364.596 | 1118.407 | 56412.468 | 3169.24 | 4590.336 | 11.021 | 112824.937 | 6338.48 |
| ДСТУ 8938 seamless tube 356x50 | 356 | 256* | 50 | 480.664 | 377.321 | 1118.407 | 57761.354 | 3245.02 | 4723.467 | 10.962 | 115522.708 | 6490.04 |
| ДСТУ 8938 seamless tube 356x56 | 356 | 244* | 56 | 527.788 | 414.313 | 1118.407 | 61445.028 | 3451.968 | 5098.539 | 10.79 | 122890.057 | 6903.936 |
| ДСТУ 8938 seamless tube 356x60 | 356 | 236* | 60 | 557.947 | 437.988 | 1118.407 | 63617.1 | 3573.994 | 5328.96 | 10.678 | 127234.201 | 7147.989 |
| ДСТУ 8938 seamless tube 356x63 | 356 | 230* | 63 | 579.907 | 455.227 | 1118.407 | 65107.562 | 3657.728 | 5491.836 | 10.596 | 130215.125 | 7315.456 |
| ДСТУ 8938 seamless tube 356x65 | 356 | 226* | 65 | 594.232 | 466.472 | 1118.407 | 66038.516 | 3710.029 | 5595.807 | 10.542 | 132077.031 | 7420.058 |
| ДСТУ 8938 seamless tube 356x70 | 356 | 216* | 70 | 628.947 | 493.723 | 1118.407 | 68158.97 | 3829.156 | 5840.053 | 10.41 | 136317.94 | 7658.311 |
| ДСТУ 8938 seamless tube 356x75 | 356 | 206* | 75 | 662.091 | 519.741 | 1118.407 | 70004.5 | 3932.837 | 6062.7 | 10.283 | 140009 | 7865.674 |
| ДСТУ 8938 seamless tube 377x9 | 377 | 359* | 9 | 104.05 | 81.679 | 1184.38 | 17624.043 | 934.962 | 1219.059 | 13.015 | 35248.085 | 1869.925 |
| ДСТУ 8938 seamless tube 377x9.5 | 377 | 358* | 9.5 | 109.681 | 86.099 | 1184.38 | 18528.729 | 982.956 | 1283.32 | 12.997 | 37057.459 | 1965.913 |
| ДСТУ 8938 seamless tube 377x10 | 377 | 357* | 10 | 115.296 | 90.508 | 1184.38 | 19425.867 | 1030.55 | 1347.223 | 12.98 | 38851.733 | 2061.1 |
| ДСТУ 8938 seamless tube 377x11 | 377 | 355* | 11 | 126.481 | 99.287 | 1184.38 | 21197.661 | 1124.544 | 1473.96 | 12.946 | 42395.322 | 2249.089 |
| ДСТУ 8938 seamless tube 377x12 | 377 | 353* | 12 | 137.602 | 108.017 | 1184.38 | 22939.761 | 1216.963 | 1599.276 | 12.912 | 45879.522 | 2433.927 |
| ДСТУ 8938 seamless tube 377x13 | 377 | 351* | 13 | 148.66 | 116.698 | 1184.38 | 24652.501 | 1307.825 | 1723.18 | 12.878 | 49305.002 | 2615.65 |
| ДСТУ 8938 seamless tube 377x14 | 377 | 349* | 14 | 159.656 | 125.33 | 1184.38 | 26336.212 | 1397.147 | 1845.681 | 12.844 | 52672.424 | 2794.293 |
| ДСТУ 8938 seamless tube 377x15 | 377 | 347* | 15 | 170.588 | 133.912 | 1184.38 | 27991.224 | 1484.946 | 1966.785 | 12.81 | 55982.448 | 2969.891 |
| ДСТУ 8938 seamless tube 377x16 | 377 | 345* | 16 | 181.458 | 142.445 | 1184.38 | 29617.866 | 1571.24 | 2086.501 | 12.776 | 59235.731 | 3142.479 |
| ДСТУ 8938 seamless tube 377x17 | 377 | 343* | 17 | 192.265 | 150.928 | 1184.38 | 31216.462 | 1656.046 | 2204.838 | 12.742 | 62432.924 | 3312.091 |
| ДСТУ 8938 seamless tube 377x18 | 377 | 341* | 18 | 203.01 | 159.363 | 1184.38 | 32787.338 | 1739.381 | 2321.802 | 12.709 | 65574.676 | 3478.763 |
| ДСТУ 8938 seamless tube 377x19 | 377 | 339* | 19 | 213.691 | 167.748 | 1184.38 | 34330.816 | 1821.263 | 2437.402 | 12.675 | 68661.632 | 3642.527 |
| ДСТУ 8938 seamless tube 377x20 | 377 | 337* | 20 | 224.31 | 176.083 | 1184.38 | 35847.216 | 1901.709 | 2551.647 | 12.642 | 71694.432 | 3803.418 |
| ДСТУ 8938 seamless tube 377x22 | 377 | 333* | 22 | 245.358 | 192.606 | 1184.38 | 38800.055 | 2058.358 | 2776.099 | 12.575 | 77600.11 | 4116.717 |
| ДСТУ 8938 seamless tube 377x24 | 377 | 329* | 24 | 266.156 | 208.932 | 1184.38 | 41648.381 | 2209.463 | 2995.224 | 12.509 | 83296.763 | 4418.926 |
| ДСТУ 8938 seamless tube 377x25 | 377 | 327* | 25 | 276.46 | 217.021 | 1184.38 | 43034.133 | 2282.978 | 3102.808 | 12.476 | 86068.266 | 4565.956 |
| ДСТУ 8938 seamless tube 377x26 | 377 | 325* | 26 | 286.702 | 225.061 | 1184.38 | 44394.69 | 2355.156 | 3209.085 | 12.444 | 88789.38 | 4710.312 |
| ДСТУ 8938 seamless tube 377x28 | 377 | 321* | 28 | 306.996 | 240.992 | 1184.38 | 47041.447 | 2495.567 | 3417.745 | 12.379 | 94082.895 | 4991.135 |
| ДСТУ 8938 seamless tube 377x30 | 377 | 317* | 30 | 327.04 | 256.726 | 1184.38 | 49591.088 | 2630.827 | 3621.27 | 12.314 | 99182.176 | 5261.654 |
| ДСТУ 8938 seamless tube 377x32 | 377 | 313* | 32 | 346.832 | 272.263 | 1184.38 | 52046.018 | 2761.062 | 3819.723 | 12.25 | 104092.036 | 5522.124 |
| ДСТУ 8938 seamless tube 377x34 | 377 | 309* | 34 | 366.373 | 287.602 | 1184.38 | 54408.611 | 2886.398 | 4013.167 | 12.186 | 108817.223 | 5772.797 |
| ДСТУ 8938 seamless tube 377x35 | 377 | 307* | 35 | 376.049 | 295.198 | 1184.38 | 55556.016 | 2947.269 | 4108.032 | 12.155 | 111112.032 | 5894.538 |
| ДСТУ 8938 seamless tube 377x36 | 377 | 305* | 36 | 385.662 | 302.745 | 1184.38 | 56681.214 | 3006.961 | 4201.668 | 12.123 | 113362.427 | 6013.922 |
| ДСТУ 8938 seamless tube 377x38 | 377 | 301* | 38 | 404.7 | 317.689 | 1184.38 | 58866.139 | 3122.872 | 4385.289 | 12.061 | 117732.279 | 6245.744 |
| ДСТУ 8938 seamless tube 377x40 | 377 | 297* | 40 | 423.487 | 332.437 | 1184.38 | 60965.673 | 3234.253 | 4564.093 | 11.998 | 121931.346 | 6468.506 |
| ДСТУ 8938 seamless tube 377x42 | 377 | 293* | 42 | 442.022 | 346.987 | 1184.38 | 62982.07 | 3341.224 | 4738.146 | 11.937 | 125964.139 | 6682.448 |
| ДСТУ 8938 seamless tube 377x45 | 377 | 287* | 45 | 469.354 | 368.443 | 1184.38 | 65855.638 | 3493.668 | 4990.455 | 11.845 | 131711.277 | 6987.336 |
| ДСТУ 8938 seamless tube 377x48 | 377 | 281* | 48 | 496.12 | 389.454 | 1184.38 | 68554.525 | 3636.845 | 5232.432 | 11.755 | 137109.05 | 7273.69 |
| ДСТУ 8938 seamless tube 377x50 | 377 | 277* | 50 | 513.65 | 403.216 | 1184.38 | 70260.312 | 3727.337 | 5388.117 | 11.696 | 140520.624 | 7454.675 |
| ДСТУ 8938 seamless tube 377x56 | 377 | 265* | 56 | 564.733 | 443.315 | 1184.38 | 74952.029 | 3976.235 | 5828.835 | 11.52 | 149904.059 | 7952.47 |
| ДСТУ 8938 seamless tube 377x60 | 377 | 257* | 60 | 597.531 | 469.062 | 1184.38 | 77745.495 | 4124.429 | 6101.34 | 11.407 | 155490.991 | 8248.859 |
| ДСТУ 8938 seamless tube 377x63 | 377 | 251* | 63 | 621.47 | 487.854 | 1184.38 | 79676.32 | 4226.86 | 6294.897 | 11.323 | 159352.64 | 8453.721 |
| ДСТУ 8938 seamless tube 377x65 | 377 | 247* | 65 | 637.115 | 500.135 | 1184.38 | 80888.916 | 4291.189 | 6418.902 | 11.268 | 161777.831 | 8582.378 |
| ДСТУ 8938 seamless tube 377x70 | 377 | 237* | 70 | 675.128 | 529.976 | 1184.38 | 83672.865 | 4438.879 | 6711.763 | 11.133 | 167345.73 | 8877.758 |
| ДСТУ 8938 seamless tube 377x75 | 377 | 227* | 75 | 711.571 | 558.583 | 1184.38 | 86125.853 | 4569.011 | 6980.925 | 11.002 | 172251.707 | 9138.022 |
| ДСТУ 8938 seamless tube 402x9 | 402 | 384* | 9 | 111.118 | 87.228 | 1262.92 | 21463.856 | 1067.854 | 1390.284 | 13.898 | 42927.712 | 2135.707 |
| ДСТУ 8938 seamless tube 402x9.5 | 402 | 383* | 9.5 | 117.142 | 91.957 | 1262.92 | 22571.313 | 1122.951 | 1463.82 | 13.881 | 45142.626 | 2245.902 |
| ДСТУ 8938 seamless tube 402x10 | 402 | 382* | 10 | 123.15 | 96.673 | 1262.92 | 23670.129 | 1177.618 | 1536.973 | 13.864 | 47340.258 | 2355.237 |
| ДСТУ 8938 seamless tube 402x11 | 402 | 380* | 11 | 135.12 | 106.069 | 1262.92 | 25842.019 | 1285.673 | 1682.135 | 13.829 | 51684.037 | 2571.345 |
| ДСТУ 8938 seamless tube 402x12 | 402 | 378* | 12 | 147.027 | 115.416 | 1262.92 | 27979.885 | 1392.034 | 1825.776 | 13.795 | 55959.77 | 2784.068 |
| ДСТУ 8938 seamless tube 402x13 | 402 | 376* | 13 | 158.87 | 124.713 | 1262.92 | 30084.085 | 1496.721 | 1967.905 | 13.761 | 60168.17 | 2993.441 |
| ДСТУ 8938 seamless tube 402x14 | 402 | 374* | 14 | 170.651 | 133.961 | 1262.92 | 32154.974 | 1599.75 | 2108.531 | 13.727 | 64309.947 | 3199.5 |
| ДСТУ 8938 seamless tube 402x15 | 402 | 372* | 15 | 182.369 | 143.16 | 1262.92 | 34192.905 | 1701.14 | 2247.66 | 13.693 | 68385.81 | 3402.279 |
| ДСТУ 8938 seamless tube 402x16 | 402 | 370* | 16 | 194.025 | 152.309 | 1262.92 | 36198.23 | 1800.907 | 2385.301 | 13.659 | 72396.46 | 3601.814 |
| ДСТУ 8938 seamless tube 402x17 | 402 | 368* | 17 | 205.617 | 161.41 | 1262.92 | 38171.298 | 1899.07 | 2521.463 | 13.625 | 76342.597 | 3798.139 |
| ДСТУ 8938 seamless tube 402x18 | 402 | 366* | 18 | 217.147 | 170.46 | 1262.92 | 40112.458 | 1995.645 | 2656.152 | 13.591 | 80224.916 | 3991.289 |
| ДСТУ 8938 seamless tube 402x19 | 402 | 364* | 19 | 228.614 | 179.462 | 1262.92 | 42022.055 | 2090.65 | 2789.377 | 13.558 | 84044.111 | 4181.299 |
| ДСТУ 8938 seamless tube 402x20 | 402 | 362* | 20 | 240.018 | 188.414 | 1262.92 | 43900.434 | 2184.101 | 2921.147 | 13.524 | 87800.867 | 4368.202 |
| ДСТУ 8938 seamless tube 402x22 | 402 | 358* | 22 | 262.637 | 206.17 | 1262.92 | 47564.9 | 2366.413 | 3180.349 | 13.458 | 95129.801 | 4732.826 |
| ДСТУ 8938 seamless tube 402x24 | 402 | 354* | 24 | 285.005 | 223.729 | 1262.92 | 51108.573 | 2542.715 | 3433.824 | 13.391 | 102217.146 | 5085.43 |
| ДСТУ 8938 seamless tube 402x25 | 402 | 352* | 25 | 296.095 | 232.435 | 1262.92 | 52835.951 | 2628.654 | 3558.433 | 13.358 | 105671.902 | 5257.309 |
| ДСТУ 8938 seamless tube 402x26 | 402 | 350* | 26 | 307.122 | 241.091 | 1262.92 | 54534.135 | 2713.141 | 3681.635 | 13.325 | 109068.271 | 5426.282 |
| ДСТУ 8938 seamless tube 402x28 | 402 | 346* | 28 | 328.988 | 258.255 | 1262.92 | 57844.242 | 2877.823 | 3923.845 | 13.26 | 115688.483 | 5755.646 |
| ДСТУ 8938 seamless tube 402x30 | 402 | 342* | 30 | 350.602 | 275.222 | 1262.92 | 61041.516 | 3036.891 | 4160.52 | 13.195 | 122083.032 | 6073.783 |
| ДСТУ 8938 seamless tube 402x32 | 402 | 338* | 32 | 371.965 | 291.992 | 1262.92 | 64128.552 | 3190.475 | 4391.723 | 13.13 | 128257.103 | 6380.95 |
| ДСТУ 8938 seamless tube 402x34 | 402 | 334* | 34 | 393.076 | 308.565 | 1262.92 | 67107.913 | 3338.702 | 4617.517 | 13.066 | 134215.825 | 6677.404 |
| ДСТУ 8938 seamless tube 402x35 | 402 | 332* | 35 | 403.538 | 316.777 | 1262.92 | 68558.008 | 3410.846 | 4728.407 | 13.034 | 137116.015 | 6821.692 |
| ДСТУ 8938 seamless tube 402x36 | 402 | 330* | 36 | 413.936 | 324.94 | 1262.92 | 69982.132 | 3481.698 | 4837.968 | 13.002 | 139964.264 | 6963.396 |
| ДСТУ 8938 seamless tube 402x38 | 402 | 326* | 38 | 434.545 | 341.118 | 1262.92 | 72753.713 | 3619.588 | 5053.139 | 12.939 | 145507.425 | 7239.175 |
| ДСТУ 8938 seamless tube 402x40 | 402 | 322* | 40 | 454.903 | 357.099 | 1262.92 | 75425.128 | 3752.494 | 5263.093 | 12.877 | 150850.257 | 7504.988 |
| ДСТУ 8938 seamless tube 402x42 | 402 | 318* | 42 | 475.009 | 372.882 | 1262.92 | 77998.822 | 3880.538 | 5467.896 | 12.814 | 155997.643 | 7761.077 |
| ДСТУ 8938 seamless tube 402x45 | 402 | 312* | 45 | 504.697 | 396.187 | 1262.92 | 81681.402 | 4063.751 | 5765.58 | 12.722 | 163362.803 | 8127.503 |
| ДСТУ 8938 seamless tube 402x48 | 402 | 306* | 48 | 533.819 | 419.048 | 1262.92 | 85157.544 | 4236.694 | 6052.032 | 12.63 | 170315.087 | 8473.387 |
| ДСТУ 8938 seamless tube 402x50 | 402 | 302* | 50 | 552.92 | 434.042 | 1262.92 | 87364.173 | 4346.476 | 6236.867 | 12.57 | 174728.346 | 8692.953 |
| ДСТУ 8938 seamless tube 402x56 | 402 | 290* | 56 | 608.715 | 477.841 | 1262.92 | 93477.318 | 4650.613 | 6762.635 | 12.392 | 186954.636 | 9301.226 |
| ДСТУ 8938 seamless tube 402x60 | 402 | 282* | 60 | 644.655 | 506.054 | 1262.92 | 97152.704 | 4833.468 | 7089.84 | 12.276 | 194305.407 | 9666.936 |
| ДСТУ 8938 seamless tube 402x63 | 402 | 276* | 63 | 670.95 | 526.696 | 1262.92 | 99711.548 | 4960.774 | 7323.372 | 12.191 | 199423.097 | 9921.547 |
| ДСТУ 8938 seamless tube 402x65 | 402 | 272* | 65 | 688.166 | 540.21 | 1262.92 | 101327.263 | 5041.157 | 7473.527 | 12.134 | 202654.526 | 10082.315 |
| ДСТУ 8938 seamless tube 402x70 | 402 | 262* | 70 | 730.106 | 573.133 | 1262.92 | 105065.923 | 5227.16 | 7830.013 | 11.996 | 210131.846 | 10454.321 |
| ДСТУ 8938 seamless tube 402x75 | 402 | 252* | 75 | 770.476 | 604.823 | 1262.92 | 108400.138 | 5393.042 | 8160.3 | 11.861 | 216800.276 | 10786.083 |
| ДСТУ 8938 seamless tube 406x9 | 406 | 388* | 9 | 112.249 | 88.116 | 1275.487 | 22125.702 | 1089.936 | 1418.724 | 14.04 | 44251.404 | 2179.872 |
| ДСТУ 8938 seamless tube 406x9.5 | 406 | 387* | 9.5 | 118.336 | 92.894 | 1275.487 | 23268.174 | 1146.215 | 1493.802 | 14.022 | 46536.349 | 2292.431 |
| ДСТУ 8938 seamless tube 406x10 | 406 | 386* | 10 | 124.407 | 97.66 | 1275.487 | 24401.825 | 1202.06 | 1568.493 | 14.005 | 48803.649 | 2404.121 |
| ДСТУ 8938 seamless tube 406x11 | 406 | 384* | 11 | 136.502 | 107.154 | 1275.487 | 26642.841 | 1312.455 | 1716.719 | 13.971 | 53285.682 | 2624.91 |
| ДСТУ 8938 seamless tube 406x12 | 406 | 382* | 12 | 148.535 | 116.6 | 1275.487 | 28849.113 | 1421.139 | 1863.408 | 13.936 | 57698.227 | 2842.277 |
| ДСТУ 8938 seamless tube 406x13 | 406 | 380* | 13 | 160.504 | 125.996 | 1275.487 | 31021.003 | 1528.128 | 2008.569 | 13.902 | 62042.007 | 3056.256 |
| ДСТУ 8938 seamless tube 406x14 | 406 | 378* | 14 | 172.411 | 135.342 | 1275.487 | 33158.87 | 1633.442 | 2152.211 | 13.868 | 66317.739 | 3266.884 |
| ДСТУ 8938 seamless tube 406x15 | 406 | 376* | 15 | 184.254 | 144.64 | 1275.487 | 35263.069 | 1737.097 | 2294.34 | 13.834 | 70526.139 | 3474.194 |
| ДСТУ 8938 seamless tube 406x16 | 406 | 374* | 16 | 196.035 | 153.888 | 1275.487 | 37333.958 | 1839.111 | 2434.965 | 13.8 | 74667.916 | 3678.222 |
| ДСТУ 8938 seamless tube 406x17 | 406 | 372* | 17 | 207.754 | 163.087 | 1275.487 | 39371.889 | 1939.502 | 2574.095 | 13.766 | 78743.779 | 3879.004 |
| ДСТУ 8938 seamless tube 406x18 | 406 | 370* | 18 | 219.409 | 172.236 | 1275.487 | 41377.214 | 2038.286 | 2711.736 | 13.733 | 82754.429 | 4076.573 |
| ДСТУ 8938 seamless tube 406x19 | 406 | 368* | 19 | 231.001 | 181.336 | 1275.487 | 43350.283 | 2135.482 | 2847.897 | 13.699 | 86700.566 | 4270.964 |
| ДСТУ 8938 seamless tube 406x20 | 406 | 366* | 20 | 242.531 | 190.387 | 1275.487 | 45291.443 | 2231.106 | 2982.587 | 13.665 | 90582.886 | 4462.211 |
| ДСТУ 8938 seamless tube 406x22 | 406 | 362* | 22 | 265.402 | 208.34 | 1275.487 | 49079.418 | 2417.705 | 3247.581 | 13.599 | 98158.836 | 4835.411 |
| ДСТУ 8938 seamless tube 406x24 | 406 | 358* | 24 | 288.021 | 226.097 | 1275.487 | 52743.885 | 2598.221 | 3506.784 | 13.532 | 105487.77 | 5196.442 |
| ДСТУ 8938 seamless tube 406x25 | 406 | 356* | 25 | 299.237 | 234.901 | 1275.487 | 54530.652 | 2686.239 | 3634.233 | 13.499 | 109061.304 | 5372.478 |
| ДСТУ 8938 seamless tube 406x26 | 406 | 354* | 26 | 310.389 | 243.656 | 1275.487 | 56287.557 | 2772.786 | 3760.259 | 13.466 | 112575.115 | 5545.572 |
| ДСТУ 8938 seamless tube 406x28 | 406 | 350* | 28 | 332.506 | 261.017 | 1275.487 | 59713.12 | 2941.533 | 4008.069 | 13.401 | 119426.24 | 5883.066 |
| ДСТУ 8938 seamless tube 406x30 | 406 | 346* | 30 | 354.372 | 278.182 | 1275.487 | 63023.226 | 3104.592 | 4250.28 | 13.336 | 126046.453 | 6209.185 |
* Calculated value: worked out from the dimensions the standard specifies, not listed in the standard itself.