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Dimension sheet of Hollow Section Tube Nominal Pipe Thickness 1 2 3 4 5 r b c size DN ourside diameter pipe s si sa2 s si sa2 s si sa2 s si sa2 s si sa2 type 2 3.1 1.3 - - 3.8 1.7 5.6 2.6 6.7 3.2 17.5 28 7 15 21.3 3 1.6 2.2 1.4 - - - 2 2.7 1.8 3.2 4.2 2.8 4 5.2 3.4 28 38 12 5 1.9 1.5 - - 24 1.8 3.8 2.9 4.7 3.6 42.5 53 18 2 2.7 1.4 - - 3.7 1.9 5.1 2.7 6.2 3.3 25 39 10 20 26.9 3 1.6 2.4 1.4 - - - 2.3 3.4 2 3.2 4.6 2.7 4 5.6 3.3 29 43 12 5 1.9 1.5 - - 2.7 2.1 3.7 2.9 4.6 3.6 57.5 70 24 2 4.2 1.6 - - 5.3 2.1 6.3 2.6 7.5 3.1 25 42 10 25 33.7 3 2 2.9 1.7 - - - 2.6 3.7 2.2 3.2 4.5 2.7 4 5.5 3.4 38 56 16 5 2.4 1.9 - - 3 2.4 3.7 2.9 4.6 3.6 72.5 90 30 2 4.1 1.6 - - 5.2 2.1 6.9 2.9 7.5 3.1 32 53 13 32 42.4 3 2 2.9 1.7 - - - 2.6 3.7 2.2 3.6 5 3.1 4 5.5 3.4 48 69 20 5 2.3 1.9 - - 3 2.4 4.2 3.3 4.6 3.6 92.5 114 38 2 3.9 1.6 - - 4.9 2.1 7.3 3.2 8.8 3.9 38 62 16 40 48.3 3 2 2.8 1.7 - - - 2.6 3.6 2.3 4 5.5 3.4 5 6.8 4.2 57 82 24 5 2.3 1.9 - - 3 2.4 4.6 3.7 5.7 4.5 107.5 132 45 2 3.5 1.7 - - 5 2.4 7.6 3.7 9.2 4.5 51 81 21 3 2.7 1.8 - - 3.9 2.5 6 3.9 7.4 4.8 76 106 32 50 60.3 5 2 2.3 1.9 - - - 2.9 3.4 2.7 4.5 5.2 4.1 5.6 6.4 5.1 135 165 56 10 2.2 1.9 - - 3.2 2.8 4.9 4.3 6 5.3 254 284 105 20 2.1 2 - - 3 2.9 4.7 4.4 5.8 5.4 508 538 210 2 4.1 1.9 - - 5.1 2.4 8.6 4 11.8 5.6 63 102 26 3 3.1 2 - - 3.9 2.5 6.7 4.3 9.3 6 95 133 38 55 76.1 5 2.3 2.7 2.1 - - - 2.9 3.3 2.7 5 5.7 4.6 7.1 8.1 6.5 175 213 73 10 2.5 2.2 - - 3.2 2.8 5.4 4.8 7.6 6.7 318 356 132 20 2.4 2.3 - - 3 2.9 5.2 4.9 7.3 6.9 635 673 268 2 4 1.9 - - 5.5 2.6 9.4 4.6 130 6.4 76 121 32 3 3.1 2 - - 4.3 2.8 7.4 4.8 10.5 6.8 114 159 47 80 88.9 5 2.3 2.7 2.1 - - - 3.2 3.7 3 5.6 6.4 5.1 8 9.1 7.3 205 250 85 10 2.5 2.2 - - 3.5 3.1 6.1 5.4 8.6 7.6 381 425 158 20 2.4 2.3 - - 3.3 3.2 5.8 5.5 8.3 7.8 762 506 316 2 4.3 2.2 - - 5.9 3 10.2 5.2 13.9 7.1 102 159 42 3 3.4 2.3 - - 4.7 3.1 8.2 5.5 11.3 7.6 152 210 63 100 114.3 5 2.6 3 2.4 - - - 3.6 4.1 3.3 6.3 7.2 5.8 8.8 10 8 270 327 112 10 2.8 2.5 - - 3.9 3.5 6.8 6 9.4 8.4 508 565 210 20 2.7 2.6 - - 3.8 3.6 6.5 6.2 9.1 8.6 1016 1073 421 2 4.3 2.2 - - 6.5 3.3 10.1 5.2 15.6 8.1 127 197 53 3 3.4 2.3 - - 5.2 3.5 8.2 5.5 12.8 8.6 190 260 79 125 139.7 5 2.6 3 2.4 - - - 4 4.6 3.7 6.3 7.2 5.8 10 11.3 9.1 330 400 137 10 2.8 2.5 - - 4.3 3.9 6.8 6.1 10.7 9.5 635 705 263 20 2.7 2.6 - - 4.2 3.9 6.5 6.2 10.3 9.7 1270 1340 526 2 4.3 2.2 6.5 3.3 7.3 3.7 11.45 5.8 17.3 8.9 152 237 63 3 3.4 2.3 5.2 3.5 5.9 3.9 9.2 6.2 14.1 9.5 229 313 95 150 168.3 5 2.6 3 2.4 4 4.6 3.7 4.5 5.2 4.1 7.1 8.1 6.5 11 12.5 10 390 474 162 10 2.8 2.5 4.3 3.9 4.9 4.3 7.6 6.8 11.8 10.5 762 846 316 20 2.7 2.6 4.2 3.9 4.7 4.4 7.4 7 11.3 10.7 1524 1608 631 2 4.7 2.4 7.2 3.7 10 5.2 12.6 6.6 19.3 10.2 203 313 84 3 3.8 2.6 5.8 3.9 8.1 5.5 10.3 7 15.9 10.8 305 414 126
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