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尺寸規格見表6-97。
1.直縫電焊鋼管（GB/T13793-1992）
(1)
(2)允許偏差見表6-98。
表6-97直縫電焊鋼管的尺寸規格
| 外徑/mm | 壁厚/mm | |||||||||||||||
| O.5 | 0.6 | 0.8 | 1 | 1.2 | 1.4 | 1.5 | 1.6 | 1.8 | 2.O | 2.2 | 2.5 | 2.8 | 3 | 3.2 | 3.5 | |
| 鋼管的理論質量/(kg/m) | ||||||||||||||||
| 5 | O.055 | 0.065 | O.083 | O.099 | - | - | - | - | - | - | - | - | - | - | - | - |
| 8 | 0.092 | O.109 | O.142 | O.173 | O.201 | - | - | - | - | - | - | - | - | - | - | - |
| 10 | 0.117 | O.139 | 0.181 | 0.222 | 0.26 | - | - | - | - | - | - | - | - | - | - | - |
| 12 | 0.142 | O.169 | O.221 | O.271 | O.320 | O.366 | O.388 | 0.41 | - | - | - | - | - | - | - | - |
| 13 | - | O.183 | 0.241 | 0.296 | O.343 | 0.4 | O.425 | 0.45 | - | - | - | - | - | - | - | - |
| 14 | - | 0.198 | O.260 | O.321 | O.379 | O.435 | O.462 | O.489 | - | - | - | - | - | - | - | - |
| 15 | - | O.123 | 0.28 | O.345 | 0.408 | O.470 | O.499 | O.529 | - | - | - | - | - | - | - | - |
| 16 | - | O.228 | O.300 | O.370 | 0.438 | 0.504 | O.536 | O.568 | - | - | - | - | - | - | - | - |
| 17 | - | 0.243 | O.320 | O.395 | O.468 | 0.359 | O.573 | O.608 | - | - | - | - | - | - | - | - |
| 18 | - | 0.257 | 0.339 | O.419 | O.497 | O.573 | 0.61 | 0.647 | - | - | - | - | - | - | - | - |
| 19 | - | O.272 | O.359 | 0/444 | 0.527 | 0.608 | O.647 | O.687 | - | - | - | - | - | - | - | - |
| 20 | - | 0.287 | 0.379 | O.469 | O.556 | O.642 | O.684 | O.726 | 0.808 | 0.888 | - | - | - | - | - | - |
| 21 | - | - | 0.399 | 0.493 | 0.586 | 0.677 | O.721 | O.765 | 0.852 | 0.937 | - | - | - | - | - | - |
| 22 | - | - | O.418 | O.518 | O.616 | O.7U | O.758 | O.805 | O.897 | 0.986 | 1.074 | - | - | - | - | - |
| 25 | - | - | O.477 | O.592 | O.704 | 0.815 | O.869 | O.923 | 1.03 | 1.134 | 1.237 | 1.387 | - | - | - | - |
| 28 | - | - | O.537 | O.666 | O.793 | 0.918 | O.980 | 1.0412 | 1.163 | 1.282 | 1.4 | 1.572 | 1.74 | - | - | - |
| 30 | - | - | 0.576 | O.715 | 0.852 | 0.987 | 1.054 | 1.121 | 1.252 | 1.381 | 1.508 | 1.695 | 1.878 | 1.997 | - | - |
| 32 | - | - | - | O.764 | 0.911 | 1.065 | 1.128 | 1.199 | 1.341 | 1.48 | 1.617 | 1.1819 | 2.016 | 2.145 | - | - |
| 34 | - | - | - | O.814 | O.971 | 1.125 | 1.202 | 1.278 | 1.429 | 1.578 | 1.725 | 1.942 | 2.154 | 2.293 | - | - |
| 37 | - | - | - | O.888 | 1.059 | 1.229 | 1.313 | 1.397 | 1.562 | 1.726 | 1.888 | 2.127 | 2.361 | 2.515 | - | - |
| 38 | - | - | - | 0.912 | 1.089 | 1.264 | 1.35 | 1.436 | 1.607 | 1.776 | 1.942 | 2.189 | 2.43 | 2.589 | 2.746 | 2.978 |
| 40 | - | - | - | O.962 | 1.148 | 1.333 | 1.424 | 1.515 | 1.696 | 1.874 | 2.051 | 2.312 | 2.569 | 2.737 | 2.904 | 3.15 |
| 45 | - | - | - | 1.09 | 1.3 | 1.5l | 1.61 | 1.71 | 1.92 | 2.12 | 2.32 | 2.62 | 2.91 | 3.11 | 3.3 | 3.58 |
| 46 | - | - | - | - | 1.33 | 1.54 | 1.65 | 1.75 | 1.96 | 2.17 | 2.38 | 2.68 | 2.98 | 3.18 | 3.38 | 3.668 |
| 48 | - | - | - | - | 1.38 | 1.6l | 1.72 | 1.83 | 2.05 | 2.27 | 2.48 | 2.81 | 3.12 | 3.33 | 3.54 | 3.84 |
| 50 | - | - | - | - | 1.44 | 1.68 | 1.79 | 1.91 | 2.14 | 2.37 | 2/59 | 2.93 | 3.26 | 3.48 | 3.69 | 4.Ol |
| 5l | - | - | - | - | 1.47 | 1.71 | 1.83 | 1.95 | 2.18 | 2.42 | 2.65 | 2.99 | 3.33 | 3.55 | 3.77 | 4.1 |
| 53 | - | - | - | - | 1.53 | 1.78 | 1.9 | 2.03 | 2.27 | 2.52 | 2.76 | 3.11 | 3.47 | 3.7 | 3.93 | 4.27 |
| 54 | - | - | - | - | 1.56 | 1.82 | 1.94 | 2.07 | 2.32 | 2.56 | 2.81 | 3.17 | 3.54 | 3.77 | 4.01 | 4.36 |
| 60 | - | - | - | - | 1.74 | 2.02 | 2.16 | 2.3 | 2.58 | 2.86 | 3.14 | 3.54 | 3.95 | 4.22 | 4.48 | 4.88 |
| 63.5 | - | - | - | - | 1.84 | 2.14 | 2.29 | 2.44 | 2.74 | 3.03 | 3.33 | 3.76 | 4.19 | 4.48 | 4.76 | 5.18 |
| 65 | - | - | - | - | - | - | 2.35 | 2.5 | 2.81 | 3.11 | 3.41 | 3.85 | 4.29 | 4.59 | 4.88 | 5.31 |
| 70 | - | - | - | - | - | - | 2.37 | 2.7 | 3.03 | 3.35 | 3.68 | 4.16 | 4.64 | 4.96 | 5.27 | 5.74 |
| 76 | - | - | - | - | - | - | 2.76 | 2.94 | 3.29 | 3.65 | 4 | 4.53 | 5.05 | 5.4 | 5.74 | 6.26 |
| 80 | - | - | - | - | - | - | 2.9 | 3.09 | 3.47 | 3.85 | 4.22 | 4.78 | 5.33 | 5.7 | 6.06 | 6.6 |
| 83 | - | - | - | - | - | - | 3.OI | 3.2l | 3.6 | 3.99 | 4.38 | 4.96 | 5.54 | 5.92 | 6.3 | 6.86 |
| 89 | - | - | - | - | - | - | 3.24 | 3.45 | 3.87 | 4.29 | 4.71 | 5.33 | 5.95 | 6.36 | 6.77 | 7.38 |
| 95 | - | - | - | - | - | - | 3.46 | 3.69 | 4.14 | 4.59 | 5.03 | 5.7 | 6.37 | 6.8l | 17.24 | 7.9 |
| 101.6 | - | - | - | - | - | - | 3.7 | 3.95 | 4.43 | 4.91 | 5.39 | 6.11 | 6.82 | 7.29 | 7.76 | 8.47 |
| 102 | - | - | - | - | - | - | 3.72 | 3.96 | 4.45 | 4.93 | 5.41 | 6.13 | 6.85 | 7.32 | 7.8 | 8.5 |
| 外徑/mm | 壁厚/mm | ||||||||||||||||
| 3.8 | 4.O | 4.2 | 4.5 | 4.8 | 5.O | 5.4 | 5.6 | 6.O | 6.5 | 7.O | 8.O | 9.O | 10 | 11 | 12.O | 12.7 | |
| 鋼管的理論質量/(kg/m) | |||||||||||||||||
| 108 | 9.76 | 10.26 | 10.75 | 11.49 | 12.22 | 12.7 | - | - | - | - | - | - | - | - | - | - | - |
| 114 | 10.33 | 10.85 | 11.37 | 12.15 | 12.93 | 13.44 | 14.46 | 14.97 | - | - | - | - | - | - | - | - | - |
| 114.3 | 10.35 | 10_88 | 11.4 | 12.18 | 12.96 | 13.48 | 14.5 | 15.01 | - | - | - | - | - | - | - | - | - |
| 121 | 1O.98 | 11.54 | 12.1 | 12.93 | 13.75 | 14.3 | 15.39 | 15.94 | - | - | - | - | - | - | - | - | - |
| 127 | 11.51 | 12.13 | 12.72 | 13.59 | 14.46 | 15.04 | 16.19 | 16.76 | 17.9 | - | - | - | - | - | - | - | - |
| 133 | 12.11 | 12.72 | 13.3-4 | 14.26 | 15.17 | 15.78 | 16.99 | 17.59 | 18.79 | - | - | - | - | - | - | - | - |
| 139.3 | 12.7 | 13.35 | 13.99 | 14.96 | 15.92 | 16.56 | 17.83 | 18.46 | 19.72 | - | - | - | - | - | - | - | - |
| 140 | 12.76 | 13.42 | 14.07 | 15.04 | 16 | 16.65 | 17.92 | 18.56 | 19.83 | - | - | - | - | - | - | - | - |
| 152 | 13.8 | 14.6 | 15.31 | 16.37 | 17.42 | 18.13 | 19.52 | 20.22 | 21.6 | - | - | - | - | - | - | - | - |
| 159 | - | 15.3 | 16 | 17.1 | 18.3 | 19.O | 20.5 | 21.2 | 22.6 | 24.4 | 26.2 | - | - | - | - | - | - |
| 165.1 | - | 15.9 | 16.7 | 17.8 | 19.O | 19.7 | 21.3 | 22.O | 23.5 | 25.4 | 27.3 | - | - | - | - | - | - |
| 168.3 | - | 16.2 | 17 | 18.2 | 19.4 | 20.1 | 21.7 | 22.5 | 24.O | 25.9 | 27.8 | - | - | - | - | - | - |
| 177.8 | - | 17.1 | 18 | 19.2 | 20.5 | 21.3 | 23.O | 23.8 | 25.4 | 27.5 | 29.5 | 33.5 | - | - | - | - | - |
| 180 | - | 17.4 | 18.2 | 19.5 | 20.7 | 21.6 | 23.3 | 24.1 | 25.7 | 27.8 | 29.9 | 33.9 | - | - | - | - | - |
| 193.7 | - | 18.7 | 19.6 | 21 | 22.4 | 23.3 | 25.1 | 26 | 27.8 | 30.O | 32.2 | 36.6 | - | - | - | - | - |
| 203 | - | - | - | 22 | 23.5 | 2/4.4 | 26.3 | 27.3 | 29.1 | 31.5 | 33.8 | 38.5 | - | - | - | - | - |
| 219.1 | - | - | - | 23.8 | 25.4 | 26.4 | 28.5 | 29.5 | 31.5 | 34.1 | 36.6 | 41.6 | 46.6 | - | - | - | - |
| 244.5 | - | - | - | 26.6 | 28.4 | 29.5 | 31.8 | 33 | 35.3 | 38.1 | 41 | 46.7 | 52.3 | - | - | - | - |
| 267 | - | - | - | - | - | 32.3 | 34.8 | 36.1 | 38.6 | 41.8 | 44.9 | 51.1 | 57.3 | 63.4 | - | - | - |
| 273 | - | - | - | - | - | 33.0 | 35.6 | 36.9 | 39.5 | 39.5 | 42.7 | 48.9 | 52.3 | s8.6 | 64.9 | - | - |
| 298.5 | - | - | - | - | - | - | - | 40.4 | 43.3 | 46.8 | 50.3 | 57.3 | 54.3 | 71.1 | 78.O | - | - |
| 323.9 | - | - | - | - | - | - | - | 44 | 47.O | 50.9 | 54.7 | 62.3 | 69.9 | 77.4 | 84.9 | - | - |
| 325 | - | - | - | - | - | - | - | - | 47.2 | 51.1 | 54.9 | 62.5 | 70.1 | 77.7 | 85.2 | - | - |
| 351 | - | - | - | - | - | - | - | - | 51.O | 55.2 | 59.4 | 67.7 | 75.9 | 84.1 | 92.2 | - | - |
| 355.6 | - | - | - | - | - | - | - | - | 51.7 | 56.O | 60.2 | 68.6 | 76.9 | 85.2 | 93.5 | 101.7 | - |
| 368 | - | - | - | - | - | - | - | - | 53.6 | 57.9 | 62.3 | 71.O | 79.7 | 88.3 | 96.8 | 105.3 | - |
| 377 | - | - | - | - | - | - | - | - | 54.9 | 59.4 | 63.9 | 72.8 | 81.7 | 90.5 | 99.28 | 108.O | - |
| 402 | - | - | - | - | - | - | - | - | 58.6 | 63.4 | 68.2 | 77.7 | 87.2 | 96.7 | 106.1 | 115.4 | - |
| 406.4 | - | - | - | - | - | - | - | - | 59.2 | 64.1 | 68.9 | 78.6 | 88.2 | 97.8 | 107.3 | 116.7 | 123.3 |
| 419 | - | - | - | - | - | - | - | - | 61.1 | 66.1 | 71.1 | 81.1 | 91 | 100.9 | 110.7 | 120.4 | 127.2 |
| 426 | - | - | - | - | - | - | - | - | 62.1 | 67.2 | 72.3 | 82.5 | 92.5 | 102.6 | 112.6 | 122.5 | 129.4 |
| 457 | - | - | - | - | - | - | - | - | 66.7 | 72.2 | 77.7 | 88.5 | 99.4 | 110.2 | 121.O | 131.7 | 139.1 |
| 478 | - | - | - | - | - | - | - | - | 69.8 | 75.6 | 81.3 | 92.7 | 104.1 | 115.4 | 126.7 | 131.7 | 145.7 |
| 480 | - | - | - | - | - | - | - | - | 70.1 | 75.9 | 81.6 | 93.1 | 104.5 | 115.9 | 127.2 | 138.5 | 146.3 |
| 508 | - | - | - | - | - | - | - | - | 74.3 | 80.4 | 85.5 | 98/6 | 110.7 | 122.8 | 134.8 | 146.8 | 155.1 |
表6-98直縫電焊鋼管的外徑和壁厚允許偏差
(mm)
| 外徑 | 高精度D1 | 較高精度D2 | 普通精度D3 |
| 5～20 | ±O.10 | ±O.20 | ±O.30 |
| 21～30 | ±O.10 | ±O.25 | ±0.50 |
| 31～40 | ±O.15 | ±O.30 | ±O.50 |
| 4l～50 | ±O.20 | 士0.35 | ±0.50 |
| 51～323.9 | ±O.5% | ±0.8% | ±1.0% |
| >323.9 | 士O.7% | ±0.8% | 士1.O% |
| 壁厚 | 高精度S1 | 較高精度S2 | 普通精度S3 |
| O.06 | +0.03-O.05 | ±O.06 | ±O.10 |
| 0.60 | +0.04-0.07 | ±O.07 | |
| 0.80 | ±0.08 | ||
| 1.O | +O.05-0.09 | ±0.09 | ±10% |
| 1.2 | ±0.11 | ||
| 1.4 | +O.06-0.1l | ±0.12 | |
| 1.5 | ±O.13 | ||
| 1.6 | +O.07-O.13 | ±O.14 | |
| 1.8 | |||
| 2.0 | ±0.15 | ||
| 2.2 | ±0.16 | ||
| 2.5 | +O.08-0.16 | ±O.17 | |
| 2.8 | ±O.18 | ||
| 3.0 | |||
| 3.2 | +O.10-O.20 | ±O.20 | |
| 3.5 | |||
| 3.8 | ±O.22 | ||
| 4.0 | |||
| 4.2～5.5 | - | ±8% | |
| >5.5 | - | ±10% | ±15% |
(3)力學性能見表6-99。
表6-99直縫電焊鋼管的力學性能
| 牌號 | 軟狀態鋼管R | 低硬狀態鋼管DY | ||
| 抗拉強度ób/MPa | 伸長率δ5(%) | 抗拉強度ób/MPa | 伸長率δ5(%) | |
| ≥ | ||||
| 08F、08、10F、lO | 315 | 22 | 375 | 13 |
| 15F、15 | 355 | 20 | 400 | 11 |
| 20 | 390 | 19 | 440 | 9 |
| Q195 | 315 | 22 | 335 | 14 |
| Q1215-A、B | 335 | 22 | 335 | 13 |
| Q235-A、B | 375 | 20 | 390 | 9 |
(4)用途適用于各種結構件、零件和輸送流體管道。
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