CARBON STEEL RECTANGULAR PIPES FOR GENERAL STRUCTURAL PURPOSES Informative Reference Side Length DxB Thickness Calculate Cross Geometrical Moment Modulus of Section (mm.) of Inertia (cm3) Weight Sectional (kg./m.) Area (cm4) Radius of Gyration (cm.) (cm2) mm T W A Ix Iy Zx Zy Ix Iy 2x1 50 x 25 1.60 2.30 3.20 1.75 2.44 3.24 2.23 3.10 4.13 7.42 10.13 13.19 2.47 3.30 4.17 2.97 4.05 5.28 1.98 2.64 3.34 1.82 1.81 1.79 1.05 1.03 1.01 3/8 x 1/4 60 x 30 1.60 2.30 3.20 2.13 2.98 3.99 2.71 3.79 5.09 13.07 18.01 23.72 4.39 5.94 7.63 4.36 6.00 7.91 2.93 3.96 5.09 2.20 2.18 2.16 1.27 1.25 1.23 x 1/2 75 x 38 1.60 2.30 3.20 2.71 3.81 5.15 3.45 4.85 6.56 26.25 36.48 48.58 9.08 12.44 16.26 7.00 9.73 12.96 4.78 6.55 8.56 2.76 2.74 2.72 1.62 1.60 1.57 x 3/4 75 x 45 1.60 2.30 3.20 2.88 4.06 5.50 3.67 5.17 7.01 29.27 40.74 54.36 13.25 18.27 24.08 7.81 10.86 14.50 5.89 8.12 10.70 2.82 2.81 2.79 1.90 1.88 1.85 4x2 100 x 50 1.60 2.30 3.20 4.50 3.64 5.14 7.01 9.55 4.63 6.55 8.93 12.16 62.92 88.18 118.72 159.20 21.48 29.77 39.52 51.90 12.58 17.64 23.75 31.84 8.59 11.91 15.81 20.76 3.69 3.67 3.65 3.62 2.15 2.13 2.10 2.07 in 6.00 9.00 12.27 17.05 15.63 21.67 200.87 269.64 63.93 81.78 40.17 53.93 25.57 32.71 3.59 3.53 2.02 1.94 5x3 125 x 75 1.60 2.30 3.20 4.50 6.00 9.00 4.89 6.95 9.52 13.09 16.98 24.08 6.23 8.85 12.12 16.66 21.63 30.67 139.56 196.77 267.04 362.21 463.18 638.81 63.76 89.38 120.39 161.54 203.99 274.32 22.33 31.48 42.73 57.95 74.11 102.21 17.00 23.83 32.10 43.01 54.40 73.15 4.73 4.72 4.69 4.66 4.63 4.56 3.20 3.18 3.15 3.11 3.07 2.99 6x2 150 x 50 1.60 2.30 3.20 4.50 6.00 9.00 4.89 6.95 9.52 13.09 16.98 24.08 6.23 8.85 12.12 16.66 21.63 30.67 172.46 243.28 330.36 448.48 574.03 792.93 30.85 42.87 57.07 75.27 93.15 120.21 22.99 32.44 44.05 59.80 76.54 105.72 12.34 17.15 22.83 30.11 37.26 48.08 5.26 5.24 5.22 5.19 5.15 5.08 2.23 2.20 2.17 2.13 2.08 1.98 6x3 150 x 75 2.30 3.20 4.50 6.00 9.00 7.85 10.78 14.85 19.34 27.61 10.00 13.72 18.91 24.63 35.17 306.01 416.57 567.60 729.64 1,016.89 104.58 141.03 189.54 239.79 323.63 40.80 55.54 75.68 97.29 135.59 27.89 37.61 50.54 63.94 86.30 5.53 5.51 5.48 5.44 5.38 3.23 3.21 3.17 3.12 3.03 6x4 150 x 100 2.30 3.20 4.50 6.00 9.00 8.76 12.03 16.62 21.69 31.15 11.15 15.32 21.16 27.63 39.67 368.73 502.79 686.72 885.25 1,240.86 197.97 268.70 364.55 466.31 643.50 49.16 67.04 91.56 118.03 165.45 39.59 53.74 72.91 93.26 128.70 5.75 5.73 5.70 5.66 5.59 4.21 4.19 4.15 4.11 4.03 8x4 200 x 100 3.20 4.50 6.00 9.00 14.54 20.15 26.40 38.21 18.52 25.66 33.63 48.67 1,006.74 1,382.70 1,793.91 2,547.15 343.69 467.23 599.03 830.43 100.67 138.27 179.39 254.72 68.74 93.45 119.81 166.09 7.37 7.34 7.30 7.23 4.31 4.27 4.22 4.13