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 273x13 | 273 | 247* | 13 | 106.186 | 83.356 | 857.655 | 8995.135 | 658.984 | 879.532 | 9.204 | 17990.269 | 1317.968 |
| ДСТУ 8938 seamless tube 273x14 | 273 | 245* | 14 | 113.914 | 89.423 | 857.655 | 9579.753 | 701.813 | 940.049 | 9.17 | 19159.506 | 1403.627 |
| ДСТУ 8938 seamless tube 273x15 | 273 | 243* | 15 | 121.58 | 95.44 | 857.655 | 10150.228 | 743.606 | 999.585 | 9.137 | 20300.456 | 1487.213 |
| ДСТУ 8938 seamless tube 273x16 | 273 | 241* | 16 | 129.182 | 101.408 | 857.655 | 10706.79 | 784.38 | 1058.149 | 9.104 | 21413.579 | 1568.76 |
| ДСТУ 8938 seamless tube 273x17 | 273 | 239* | 17 | 136.722 | 107.327 | 857.655 | 11249.666 | 824.151 | 1115.75 | 9.071 | 22499.333 | 1648.303 |
| ДСТУ 8938 seamless tube 273x18 | 273 | 237* | 18 | 144.199 | 113.196 | 857.655 | 11779.084 | 862.937 | 1172.394 | 9.038 | 23558.168 | 1725.873 |
| ДСТУ 8938 seamless tube 273x19 | 273 | 235* | 19 | 151.613 | 119.016 | 857.655 | 12295.267 | 900.752 | 1228.09 | 9.005 | 24590.534 | 1801.504 |
| ДСТУ 8938 seamless tube 273x20 | 273 | 233* | 20 | 158.965 | 124.787 | 857.655 | 12798.438 | 937.614 | 1282.847 | 8.973 | 25596.875 | 1875.229 |
| ДСТУ 8938 seamless tube 273x22 | 273 | 229* | 22 | 173.479 | 136.181 | 857.655 | 13766.623 | 1008.544 | 1389.571 | 8.908 | 27533.246 | 2017.088 |
| ДСТУ 8938 seamless tube 273x24 | 273 | 225* | 24 | 187.742 | 147.377 | 857.655 | 14685.381 | 1075.852 | 1492.632 | 8.844 | 29370.762 | 2151.704 |
| ДСТУ 8938 seamless tube 273x25 | 273 | 223* | 25 | 194.779 | 152.901 | 857.655 | 15126.761 | 1108.188 | 1542.808 | 8.813 | 30253.522 | 2216.375 |
| ДСТУ 8938 seamless tube 273x26 | 273 | 221* | 26 | 201.753 | 158.376 | 857.655 | 15556.423 | 1139.665 | 1592.093 | 8.781 | 31112.847 | 2279.329 |
| ДСТУ 8938 seamless tube 273x28 | 273 | 217* | 28 | 215.513 | 169.178 | 857.655 | 16381.432 | 1200.105 | 1688.017 | 8.718 | 32762.864 | 2400.21 |
| ДСТУ 8938 seamless tube 273x30 | 273 | 213* | 30 | 229.022 | 179.782 | 857.655 | 17162.058 | 1257.294 | 1780.47 | 8.657 | 34324.115 | 2514.587 |
| ДСТУ 8938 seamless tube 273x32 | 273 | 209* | 32 | 242.28 | 190.19 | 857.655 | 17899.922 | 1311.35 | 1869.515 | 8.595 | 35799.843 | 2622.699 |
| ДСТУ 8938 seamless tube 273x34 | 273 | 205* | 34 | 255.286 | 200.399 | 857.655 | 18596.615 | 1362.389 | 1955.215 | 8.535 | 37193.229 | 2724.779 |
| ДСТУ 8938 seamless tube 273x35 | 273 | 203* | 35 | 261.695 | 205.43 | 857.655 | 18930.011 | 1386.814 | 1996.832 | 8.505 | 37860.022 | 2773.628 |
| ДСТУ 8938 seamless tube 273x36 | 273 | 201* | 36 | 268.041 | 210.412 | 857.655 | 19253.697 | 1410.527 | 2037.636 | 8.475 | 38507.395 | 2821.055 |
| ДСТУ 8938 seamless tube 273x38 | 273 | 197* | 38 | 280.544 | 220.227 | 857.655 | 19872.701 | 1455.876 | 2116.841 | 8.416 | 39745.402 | 2911.751 |
| ДСТУ 8938 seamless tube 273x40 | 273 | 193* | 40 | 292.796 | 229.845 | 857.655 | 20455.125 | 1498.544 | 2192.893 | 8.358 | 40910.25 | 2997.088 |
| ДСТУ 8938 seamless tube 273x42 | 273 | 189* | 42 | 304.797 | 239.266 | 857.655 | 21002.44 | 1538.64 | 2265.858 | 8.301 | 42004.881 | 3077.281 |
| ДСТУ 8938 seamless tube 273x45 | 273 | 183* | 45 | 322.327 | 253.027 | 857.655 | 21760.726 | 1594.192 | 2369.655 | 8.217 | 43521.452 | 3188.385 |
| ДСТУ 8938 seamless tube 273x48 | 273 | 177* | 48 | 339.292 | 266.344 | 857.655 | 22447.983 | 1644.541 | 2466.864 | 8.134 | 44895.967 | 3289.082 |
| ДСТУ 8938 seamless tube 273x50 | 273 | 173* | 50 | 350.288 | 274.976 | 857.655 | 22868.963 | 1675.382 | 2528.117 | 8.08 | 45737.925 | 3350.764 |
| ДСТУ 8938 seamless tube 299x7.5 | 299 | 284* | 7.5 | 68.683 | 53.916 | 939.336 | 7300.023 | 488.296 | 637.433 | 10.309 | 14600.046 | 976.592 |
| ДСТУ 8938 seamless tube 299x8 | 299 | 283* | 8 | 73.136 | 57.412 | 939.336 | 7747.417 | 518.222 | 677.619 | 10.292 | 15494.834 | 1036.444 |
| ДСТУ 8938 seamless tube 299x8.5 | 299 | 282* | 8.5 | 77.574 | 60.895 | 939.336 | 8190.094 | 547.832 | 717.522 | 10.275 | 16380.188 | 1095.665 |
| ДСТУ 8938 seamless tube 299x9 | 299 | 281* | 9 | 81.996 | 64.367 | 939.336 | 8628.086 | 577.13 | 757.143 | 10.258 | 17256.172 | 1154.259 |
| ДСТУ 8938 seamless tube 299x9.5 | 299 | 280* | 9.5 | 86.402 | 67.825 | 939.336 | 9061.427 | 606.116 | 796.483 | 10.241 | 18122.854 | 1212.231 |
| ДСТУ 8938 seamless tube 299x10 | 299 | 279* | 10 | 90.792 | 71.272 | 939.336 | 9490.15 | 634.793 | 835.543 | 10.224 | 18980.3 | 1269.585 |
| ДСТУ 8938 seamless tube 299x11 | 299 | 277* | 11 | 99.526 | 78.128 | 939.336 | 10333.873 | 691.229 | 912.828 | 10.19 | 20667.746 | 1382.458 |
| ДСТУ 8938 seamless tube 299x12 | 299 | 275* | 12 | 108.196 | 84.934 | 939.336 | 11159.517 | 746.456 | 989.004 | 10.156 | 22319.034 | 1492.912 |
| ДСТУ 8938 seamless tube 299x13 | 299 | 273* | 13 | 116.804 | 91.691 | 939.336 | 11967.342 | 800.491 | 1064.08 | 10.122 | 23934.685 | 1600.982 |
| ДСТУ 8938 seamless tube 299x14 | 299 | 271* | 14 | 125.35 | 98.399 | 939.336 | 12757.607 | 853.352 | 1138.065 | 10.088 | 25515.214 | 1706.703 |
| ДСТУ 8938 seamless tube 299x15 | 299 | 269* | 15 | 133.832 | 105.058 | 939.336 | 13530.567 | 905.055 | 1210.965 | 10.055 | 27061.134 | 1810.109 |
| ДСТУ 8938 seamless tube 299x16 | 299 | 267* | 16 | 142.251 | 111.667 | 939.336 | 14286.477 | 955.617 | 1282.789 | 10.022 | 28572.955 | 1911.234 |
| ДСТУ 8938 seamless tube 299x17 | 299 | 265* | 17 | 150.608 | 118.227 | 939.336 | 15025.591 | 1005.056 | 1353.546 | 9.988 | 30051.181 | 2010.112 |
| ДСТУ 8938 seamless tube 299x18 | 299 | 263* | 18 | 158.902 | 124.738 | 939.336 | 15748.157 | 1053.388 | 1423.242 | 9.955 | 31496.314 | 2106.777 |
| ДСТУ 8938 seamless tube 299x19 | 299 | 261* | 19 | 167.133 | 131.199 | 939.336 | 16454.426 | 1100.631 | 1491.886 | 9.922 | 32908.852 | 2201.261 |
| ДСТУ 8938 seamless tube 299x20 | 299 | 259* | 20 | 175.301 | 137.611 | 939.336 | 17144.644 | 1146.799 | 1559.487 | 9.889 | 34289.288 | 2293.598 |
| ДСТУ 8938 seamless tube 299x22 | 299 | 255* | 22 | 191.449 | 150.287 | 939.336 | 18477.906 | 1235.98 | 1691.587 | 9.824 | 36955.813 | 2471.961 |
| ДСТУ 8938 seamless tube 299x24 | 299 | 251* | 24 | 207.345 | 162.766 | 939.336 | 19749.881 | 1321.062 | 1819.608 | 9.76 | 39499.763 | 2642.125 |
| ДСТУ 8938 seamless tube 299x25 | 299 | 249* | 25 | 215.199 | 168.931 | 939.336 | 20363.484 | 1362.106 | 1882.108 | 9.728 | 40726.967 | 2724.212 |
| ДСТУ 8938 seamless tube 299x26 | 299 | 247* | 26 | 222.99 | 175.047 | 939.336 | 20962.477 | 1402.172 | 1943.613 | 9.696 | 41924.954 | 2804.345 |
| ДСТУ 8938 seamless tube 299x28 | 299 | 243* | 28 | 238.384 | 187.131 | 939.336 | 22117.57 | 1479.436 | 2063.665 | 9.632 | 44235.14 | 2958.872 |
| ДСТУ 8938 seamless tube 299x30 | 299 | 239* | 30 | 253.527 | 199.018 | 939.336 | 23217.009 | 1552.977 | 2179.83 | 9.57 | 46434.017 | 3105.954 |
| ДСТУ 8938 seamless tube 299x32 | 299 | 235* | 32 | 268.418 | 210.708 | 939.336 | 24262.609 | 1622.917 | 2292.171 | 9.507 | 48525.219 | 3245.834 |
| ДСТУ 8938 seamless tube 299x34 | 299 | 231* | 34 | 283.057 | 222.2 | 939.336 | 25256.159 | 1689.375 | 2400.751 | 9.446 | 50512.318 | 3378.75 |
| ДСТУ 8938 seamless tube 299x35 | 299 | 229* | 35 | 290.283 | 227.872 | 939.336 | 25733.965 | 1721.335 | 2453.652 | 9.415 | 51467.93 | 3442.671 |
| ДСТУ 8938 seamless tube 299x36 | 299 | 227* | 36 | 297.446 | 233.495 | 939.336 | 26199.415 | 1752.469 | 2505.636 | 9.385 | 52398.83 | 3504.938 |
| ДСТУ 8938 seamless tube 299x38 | 299 | 223* | 38 | 311.583 | 244.593 | 939.336 | 27094.103 | 1812.315 | 2606.889 | 9.325 | 54188.206 | 3624.629 |
| ДСТУ 8938 seamless tube 299x40 | 299 | 219* | 40 | 325.469 | 255.493 | 939.336 | 27941.92 | 1869.025 | 2704.573 | 9.266 | 55883.841 | 3738.05 |
| ДСТУ 8938 seamless tube 299x42 | 299 | 215* | 42 | 339.104 | 266.196 | 939.336 | 28744.533 | 1922.711 | 2798.754 | 9.207 | 57489.066 | 3845.422 |
| ДСТУ 8938 seamless tube 299x45 | 299 | 209* | 45 | 359.084 | 281.881 | 939.336 | 29867.264 | 1997.81 | 2933.595 | 9.12 | 59734.528 | 3995.621 |
| ДСТУ 8938 seamless tube 299x48 | 299 | 203* | 48 | 378.499 | 297.122 | 939.336 | 30897.353 | 2066.713 | 3060.912 | 9.035 | 61794.707 | 4133.425 |
| ДСТУ 8938 seamless tube 299x50 | 299 | 199* | 50 | 391.128 | 307.036 | 939.336 | 31535.207 | 2109.378 | 3141.717 | 8.979 | 63070.414 | 4218.757 |
| ДСТУ 8938 seamless tube 299x56 | 299 | 187* | 56 | 427.508 | 335.594 | 939.336 | 33230.726 | 2222.791 | 3365.283 | 8.817 | 66461.451 | 4445.582 |
| ДСТУ 8938 seamless tube 299x60 | 299 | 179* | 60 | 450.504 | 353.646 | 939.336 | 34193.846 | 2287.214 | 3499.26 | 8.712 | 68387.692 | 4574.428 |
| ДСТУ 8938 seamless tube 299x63 | 299 | 173* | 63 | 467.092 | 366.667 | 939.336 | 34836.305 | 2330.188 | 3592.197 | 8.636 | 69672.61 | 4660.375 |
| ДСТУ 8938 seamless tube 299x65 | 299 | 169* | 65 | 477.836 | 375.101 | 939.336 | 35229.074 | 2356.46 | 3650.682 | 8.586 | 70458.149 | 4712.92 |
| ДСТУ 8938 seamless tube 299x70 | 299 | 159* | 70 | 503.597 | 395.324 | 939.336 | 36095.966 | 2414.446 | 3785.203 | 8.466 | 72191.932 | 4828.892 |
| ДСТУ 8938 seamless tube 299x75 | 299 | 149* | 75 | 527.788 | 414.313 | 939.336 | 36813.842 | 2462.464 | 3903.825 | 8.352 | 73627.685 | 4924.929 |
| ДСТУ 8938 seamless tube 324x7.5 | 324 | 309* | 7.5 | 74.574 | 58.54 | 1017.876 | 9342.995 | 576.728 | 751.433 | 11.193 | 18685.989 | 1153.456 |
| ДСТУ 8938 seamless tube 324x8 | 324 | 308* | 8 | 79.419 | 62.344 | 1017.876 | 9919.491 | 612.314 | 799.019 | 11.176 | 19838.982 | 1224.628 |
| ДСТУ 8938 seamless tube 324x8.5 | 324 | 307* | 8.5 | 84.25 | 66.136 | 1017.876 | 10490.399 | 647.556 | 846.297 | 11.159 | 20980.798 | 1295.111 |
| ДСТУ 8938 seamless tube 324x9 | 324 | 306* | 9 | 89.064 | 69.915 | 1017.876 | 11055.756 | 682.454 | 893.268 | 11.141 | 22111.512 | 1364.908 |
| ДСТУ 8938 seamless tube 324x9.5 | 324 | 305* | 9.5 | 93.863 | 73.682 | 1017.876 | 11615.597 | 717.012 | 939.933 | 11.124 | 23231.194 | 1434.024 |
| ДСТУ 8938 seamless tube 324x10 | 324 | 304* | 10 | 98.646 | 77.437 | 1017.876 | 12169.958 | 751.232 | 986.293 | 11.107 | 24339.916 | 1502.464 |
| ДСТУ 8938 seamless tube 324x11 | 324 | 302* | 11 | 108.165 | 84.91 | 1017.876 | 13262.385 | 818.666 | 1078.103 | 11.073 | 26524.771 | 1637.332 |
| ДСТУ 8938 seamless tube 324x12 | 324 | 300* | 12 | 117.621 | 92.333 | 1017.876 | 14333.323 | 884.773 | 1168.704 | 11.039 | 28666.646 | 1769.546 |
| ДСТУ 8938 seamless tube 324x13 | 324 | 298* | 13 | 127.015 | 99.706 | 1017.876 | 15383.055 | 949.571 | 1258.105 | 11.005 | 30766.109 | 1899.143 |
| ДСТУ 8938 seamless tube 324x14 | 324 | 296* | 14 | 136.345 | 107.031 | 1017.876 | 16411.862 | 1013.078 | 1346.315 | 10.971 | 32823.724 | 2026.156 |
| ДСТУ 8938 seamless tube 324x15 | 324 | 294* | 15 | 145.613 | 114.306 | 1017.876 | 17420.026 | 1075.31 | 1433.34 | 10.938 | 34840.051 | 2150.62 |
| ДСТУ 8938 seamless tube 324x16 | 324 | 292* | 16 | 154.818 | 121.532 | 1017.876 | 18407.823 | 1136.285 | 1519.189 | 10.904 | 36815.646 | 2272.571 |
| ДСТУ 8938 seamless tube 324x17 | 324 | 290* | 17 | 163.96 | 128.708 | 1017.876 | 19375.53 | 1196.02 | 1603.871 | 10.871 | 38751.06 | 2392.041 |
| ДСТУ 8938 seamless tube 324x18 | 324 | 288* | 18 | 173.039 | 135.836 | 1017.876 | 20323.422 | 1254.532 | 1687.392 | 10.837 | 40646.843 | 2509.064 |
| ДСТУ 8938 seamless tube 324x19 | 324 | 286* | 19 | 182.055 | 142.913 | 1017.876 | 21251.77 | 1311.838 | 1769.761 | 10.804 | 42503.539 | 2623.675 |
| ДСТУ 8938 seamless tube 324x20 | 324 | 284* | 20 | 191.009 | 149.942 | 1017.876 | 22160.845 | 1367.953 | 1850.987 | 10.771 | 44321.69 | 2735.907 |
| ДСТУ 8938 seamless tube 324x22 | 324 | 280* | 22 | 208.727 | 163.851 | 1017.876 | 23922.249 | 1476.682 | 2010.037 | 10.706 | 47844.498 | 2953.364 |
| ДСТУ 8938 seamless tube 324x24 | 324 | 276* | 24 | 226.195 | 177.563 | 1017.876 | 25609.761 | 1580.849 | 2164.608 | 10.64 | 51219.521 | 3161.699 |
| ДСТУ 8938 seamless tube 324x25 | 324 | 274* | 25 | 234.834 | 184.345 | 1017.876 | 26426.463 | 1631.263 | 2240.233 | 10.608 | 52852.926 | 3262.526 |
| ДСТУ 8938 seamless tube 324x26 | 324 | 272* | 26 | 243.411 | 191.077 | 1017.876 | 27225.475 | 1680.585 | 2314.763 | 10.576 | 54450.951 | 3361.17 |
| ДСТУ 8938 seamless tube 324x28 | 324 | 268* | 28 | 260.375 | 204.395 | 1017.876 | 28771.46 | 1776.016 | 2460.565 | 10.512 | 57542.919 | 3552.032 |
| ДСТУ 8938 seamless tube 324x30 | 324 | 264* | 30 | 277.088 | 217.514 | 1017.876 | 30249.748 | 1867.268 | 2602.08 | 10.448 | 60499.497 | 3734.537 |
| ДСТУ 8938 seamless tube 324x32 | 324 | 260* | 32 | 293.55 | 230.437 | 1017.876 | 31662.348 | 1954.466 | 2739.371 | 10.386 | 63324.696 | 3908.932 |
| ДСТУ 8938 seamless tube 324x34 | 324 | 256* | 34 | 309.761 | 243.162 | 1017.876 | 33011.234 | 2037.73 | 2872.501 | 10.323 | 66022.467 | 4075.461 |
| ДСТУ 8938 seamless tube 324x35 | 324 | 254* | 35 | 317.772 | 249.451 | 1017.876 | 33662.393 | 2077.925 | 2937.527 | 10.292 | 67324.785 | 4155.851 |
| ДСТУ 8938 seamless tube 324x36 | 324 | 252* | 36 | 325.72 | 255.69 | 1017.876 | 34298.35 | 2117.182 | 3001.536 | 10.262 | 68596.701 | 4234.364 |
| ДСТУ 8938 seamless tube 324x38 | 324 | 248* | 38 | 341.428 | 268.021 | 1017.876 | 35525.614 | 2192.939 | 3126.539 | 10.2 | 71051.227 | 4385.878 |
| ДСТУ 8938 seamless tube 324x40 | 324 | 244* | 40 | 356.885 | 280.155 | 1017.876 | 36694.908 | 2265.118 | 3247.573 | 10.14 | 73389.816 | 4530.236 |
| ДСТУ 8938 seamless tube 324x42 | 324 | 240* | 42 | 372.09 | 292.091 | 1017.876 | 37808.089 | 2333.833 | 3364.704 | 10.08 | 75616.177 | 4667.665 |
| ДСТУ 8938 seamless tube 324x45 | 324 | 234* | 45 | 394.427 | 309.625 | 1017.876 | 39376.629 | 2430.656 | 3533.22 | 9.992 | 78753.259 | 4861.312 |
| ДСТУ 8938 seamless tube 324x48 | 324 | 228* | 48 | 416.198 | 326.716 | 1017.876 | 40829.043 | 2520.311 | 3693.312 | 9.905 | 81658.086 | 5040.623 |
| ДСТУ 8938 seamless tube 324x50 | 324 | 224* | 50 | 430.398 | 337.863 | 1017.876 | 41735.713 | 2576.279 | 3795.467 | 9.847 | 83471.426 | 5152.557 |
| ДСТУ 8938 seamless tube 324x56 | 324 | 212* | 56 | 471.49 | 370.12 | 1017.876 | 44178.634 | 2727.076 | 4080.683 | 9.68 | 88357.268 | 5454.152 |
| ДСТУ 8938 seamless tube 324x60 | 324 | 204* | 60 | 497.628 | 390.638 | 1017.876 | 45592.703 | 2814.364 | 4253.76 | 9.572 | 91185.405 | 5628.729 |
| ДСТУ 8938 seamless tube 324x63 | 324 | 198* | 63 | 516.572 | 405.509 | 1017.876 | 46549.602 | 2873.432 | 4374.972 | 9.493 | 93099.203 | 5746.864 |
| ДСТУ 8938 seamless tube 324x65 | 324 | 194* | 65 | 528.887 | 415.176 | 1017.876 | 47141.032 | 2909.94 | 4451.807 | 9.441 | 94282.063 | 5819.88 |
| ДСТУ 8938 seamless tube 324x70 | 324 | 184* | 70 | 558.575 | 438.482 | 1017.876 | 48467.568 | 2991.825 | 4630.453 | 9.315 | 96935.136 | 5983.65 |
| ДСТУ 8938 seamless tube 324x75 | 324 | 174* | 75 | 586.692 | 460.554 | 1017.876 | 49594.578 | 3061.394 | 4790.7 | 9.194 | 99189.155 | 6122.787 |
* Calculated value: worked out from the dimensions the standard specifies, not listed in the standard itself.