大口径方管尺寸规格型号: 边长/mm 壁厚/mm 截面面积/cm2 理论重量/kg/M 惯性矩/cm4 截面模数/cm3 40 3.5 4.9 3.85 11.16 5.58 50 4 7.09 5.56 25.56 10.22 60 5 10.58 8.3 54.57 18.19 70 5 12.58 9.87 90.26 25.79 80 5 14.58 11.44 138.9 34.72 92 5 16.98 13.33 217.1 47.19 100 5 18.58 14.58 282.8 56.57 108 5 19.96 15.67 346.99 72.14 120 5 22.36 17.55 485.47 89.79 110 7 28.01 21.99 503.4 91.54 150 6 33.63 26.4 1145.91 168.85 180 16 98.37 77.22 4252.42 590.55 200 8 59.79 46.94 3621 400.25 250 10 93.42 73.33 8841.87 781.73 16 162.37 127.46 18462.79 1521.42 200.65