| 圆钢理论重量表大全 | |||
| 圆钢直径d(型号) | 理论重量 kg/m | 圆钢直径d(型号) | 理论重量kg/m |
| 圆钢 | 圆钢 | ||
| 5.5 | 0.186 | 13 | 1.04 |
| 6 | 0.222 | 14 | 1.21 |
| 6.5 | 0.26 | 15 | 1.39 |
| 7 | 0.302 | 16 | 1.58 |
| 8 | 0.395 | 17 | 1.78 |
| 9 | 0.499 | 18 | 2 |
| 10 | 0.617 | 19 | 2.23 |
| * 11 | 0.746 | 20 | 2.47 |
| 12 | 0.888 | 21 | 2.72 |
| 22 | 2.98 | 63 | 24.5 |
| * 23 | 3.26 | * 65 | 26 |
| 24 | 3.55 | * 68 | 28.5 |
| 25 | 3.85 | 70 | 30.2 |
| 26 | 4.17 | 75 | 34.7 |
| * 27 | 4.49 | 80 | 39.5 |
| 28 | 4.83 | 85 | 44.5 |
| * 29 | 5.18 | 90 | 49.9 |
| 30 | 5.55 | 95 | 55.6 |
| * 31 | 5.92 | 100 | 61.7 |
| 32 | 6.31 | 105 | 68 |
| * 33 | 6.71 | 110 | 74.6 |
| 34 | 7.13 | 115 | 81.5 |
| * 35 | 7.55 | 120 | 88.8 |
| 36 | 7.99 | 125 | 96.3 |
| 38 | 8.9 | 130 | 104 |
| 40 | 9.86 | 140 | 121 |
| 42 | 10.9 | 150 | 139 |
| 45 | 12.5 | 160 | 158 |
| 48 | 14.2 | 170 | 178 |
| 50 | 15.4 | 180 | 200 |
| 53 | 17.3 | 190 | 223 |
| * 55 | 18.6 | 200 | 247 |
| 56 | 19.3 | 220 | 298 |
| * 58 | 20.7 | 250 | 385 |
| 60 | 22.2 |
| 序号 | 规格 | 壁厚 （mm） | 每米理论重量 （kg） | 通常长度 | 备注 | |
| 通经 | 外径（mm） | |||||
| 1、热轧无缝钢管 | ||||||
| 1 | DN40 | 43 | 3 | 2. | 9米/根或 10米/根 | |
| 2 | DN50 | 57 | 3 | 4 | ||
| 3 | 60 | 3 | 4.22 | |||
| 4 | DN65 | 73 | 3.5 | 6 | ||
| 5 | 76 | 3.5 | 6.26 | |||
| 6 | DN80 | 3.5 | 7.38 | |||
| 7 | DN100 | 108 | 4 | 10.26 | ||
| 8 | DN125 | 133 | 4 | 12.73 | ||
| 9 | DN150 | 159 | 4.5 | 17.15 | ||
| 10 | DN200 | 219 | 6 | 31.52 | ||
| 11 | DN250 | 273 | 7 | 45.92 | ||
| 12 | DN300 | 325 | 8 | 62.54 | ||
| 2、低压流体输送焊接钢管 | ||||||
| 1 | DN15（1/2”） | 21.3 | 2.75 | 1.26 | 6米/根 | 括号内的表示英制通经 |
| 2 | DN20(3/4”) | 26.8 | 2.75 | 1.63 | ||
| 3 | DN25(1”) | 33.5 | 3.25 | 2.42 | ||
| 4 | DN32(1-1/4”) | 42.3 | 3.25 | 3.13 | ||
| 5 | DN40(1-1/2”) | 48 | 3.5 | 3.84 | ||
| 6 | DN50(2”) | 60 | 3.5 | 4.88 | ||
| 7 | DN65(2-1/2”) | 75.5 | 3.75 | 6. | ||
| 8 | DN80(3”) | 88.5 | 4 | 8.34 | ||
| 9 | DN100(4”) | 114 | 4 | 10.85 | ||
| 10 | DN125(5”) | 140 | 4.5 | 15.04 | ||
| 11 | DN150(6”) | 165 | 4.5 | 17.81 | ||
| 3、螺旋缝埋弧焊钢管 | ||||||
| 1 | DN200 | 219 | 6 | 32.03 | 12米/根 | |
| 2 | DN250 | 273 | 6 | 40.01 | ||
| 3 | DN300 | 325 | 6 | 47.54 | ||
| 4 | DN350 | 377 | 6 | 55.4 | ||
| 5 | DN400 | 426 | 6 | 62.65 | ||
| 6 | DN450 | 480 | 8 | 104.52 | ||
| 7 | DN500 | 529 | 8 | 115.62 | ||
| 8 | DN600 | 630 | 8 | 137.81 | ||
| 9 | DN700 | 720 | 10 | 175.6 | ||
| 10 | DN800 | 820 | 10 | 200.26 | ||
| 11 | DN900 | 920 | 10 | 224.92 | ||
| 12 | DN1000 | 1020 | 10 | 249.58 | ||
| 名称 | 公称通经DN /mm | 外径D*壁厚 （mm*mm） | 单位长度重量 kg/m |
| 无缝钢管 | DN65 | 76*4 | 7.10 |
| DN80 | *4 | 8.38 | |
| DN100 | 108*4 | 10.26 | |
| DN125 | 133*4.5 | 14.26 | |
| DN150 | 159*5 | 18.99 | |
| 螺旋焊缝钢管 | DN200 | 219*6 | 31.52 |
| DN250 | 273*6 | 39.51 | |
| DN300 | 325*6 | 47.20 | |
| DN350 | 377*6 | 54.90 | |
| DN400 | 426*6 | 62.15 | |
| DN450 | 478*6 | 69.84 | |
| 钢板卷焊管 | DN500 | 530*6 | 77.53 |
| DN600 | 630*6 | 92.33 | |
| DN700 | 720*6 | 105. | |
| DN800 | 820*6 | 120.44 | |
| DN900 | 920*6 | 135.24 | |
| DN1000 | 1020*6 | 150.03 |
W=3.1416*ρδ（D—δ）/1000
W——钢管每米理论重量kg/m；
ρ——钢的密度kg/dm-3；7.81、7.85、7.91
D——钢管的公称外径mm；
δ——钢管的公称壁厚mm；
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