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管壁厚分级表 | 公称 | 外径 | 公称壁厚(T) | 通径 | DN | A系列 | B系列 | SCH5s | SCH10s | SCH20s | SCH20 | SCH30 | SCH40 | SCH60 | SCH80 | SCH100 | SCH120 | SCH140 | SCH160 | 15 | 21.3 | 18 | 1.6 | 2.1 | 2.6 | - | - | 2.9 | - | 3.6 | - | - | - | 4.5 | 20 | 26.9 | 25 | 1.6 | 2.1 | 2.6 | - | - | 2.9 | - | 4 | - | - | - | 5.6 | 25 | 33.7 | 32 | 1.6 | 2.8 | 3.2 | - | - | 3.2 | - | 4.5 | - | - | - | 6.3 | 32 | 42.4 | 39 | 1.6 | 2.8 | 3.2 | - | - | 3.6 | - | 5 | - | - | - | 6.3 | 40 | 48.3 | 45 | 1.6 | 2.8 | 3.2 | - | - | 3.6 | - | 5 | - | - | - | 7.1 | 50 | 60.3 | 57 | 1.6 | 2.8 | 3.2 | 3.6 | - | 4 | - | 5.6 | - | - | - | 8.8 | 65 | 76.1 | 76 | 2 | 3 | 3.6 | 4.5 | - | 5 | - | 7.1 | - | - | - | 10 | -73 | 80 | 88.9 | 89 | 2 | 3 | 4 | 4.5 | - | 5.6 | - | 8 | - | - | - | 11 | 90 | 101.6 | - | 2 | 3 | 4 | 4.5 | - | 5.6 | - | 8 | - | - | - | 12.5 | 100 | 114.6 | 108 | 2 | 3 | 4 | 5 | - | 5.9 | - | 8.8 | - | 11 | - | 14.2 | 125 | 139.7 | 133 | 2.9 | 3.4 | 4.5 | 5 | - | 6.3 | - | 10 | - | 12.5 | - | 16 | 150 | 168.3 | 159 | 2.9 | 3.4 | 5 | 5.6 | - | 7.1 | - | 11 | - | 14.2 | - | 17.5 | 200 | 219.1 | 219 | 2.9 | 4 | 5 | 6.3 | 7.1 | 8 | 10 | 12.5 | 16 | 17.5 | 20 | 22.2 | 250 | 273 | 273 | 3.6 | 4 | 6.3 | 6.3 | 8 | 8.8 | 12.5 | 16 | 17.5 | 22.2 | 25 | 28 | 300 | 323.9 | 325 | 4 | 4.5 | 6.3 | 6.3 | 8.8 | 10 | 14.2 | 17.5 | 22.2 | 25 | 28 | 32 | 350 | 355.6 | 377 | 4 | 5 | - | 8 | 10 | 11 | 16 | 20 | 25.8 | 28 | 32 | 36 | 400 | 406.4 | 246 | 4 | 5 | - | 8 | 10 | 12.5 | 17.5 | 22.2 | 28 | 30 | 36 | 40 | 450 | 457 | 478 | 4 | 5 | - | 8 | 11 | 14.2 | 20 | 25 | 30 | 36 | 40 | 45 | 500 | 508 | 529 | 5 | 5.6 | - | 9.5 | 12.5 | 16 | 20 | 28 | 32 | 40 | 45 | 50 | 550 | 558.8 | 580 | 6 | 6.4 | 9.5 | 9.5 | 12.5 | 16 | 22 | 29 | 35 | 41 | 48 | 54 | 600 | 609.6 | 630 | 6 | 6.4 | 9.5 | 9.5 | 14.3 | 17.5 | 25 | 31 | 39 | 46 | 52 | 60 |
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