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方钢尺寸规格表 (1)尺寸规格见表6—40-表6—45。 国标号GB/76728-2007 表6-40冷拔无缝方形钢管的尺寸规格 基本尺寸 A mm O.8 12 1.0 1.0 14 1.5 1.O 16 1.5 1.O 18 1.5 2.O 1.0 1.5 20 2.0 2.5 1 22 1.5 27 1.37 1.64 O.823 1.19 1.53 1.08 1.29 O.646 O.936 1.20 O.763 O.874 O.612 0.850 1.05 O.763 O.874 O.556 O.773 O.953 O.832 0.663 0.952 1.21 O.743 1.07 0.653 O.521 0.747 O.952 0.583 O.841 O.300 O.324 O.442 0.535 O.453 0.624 O.374 O.360 O.491 0.595 0 453 O.624 O.712 O.583 O.559 O.458 O.192 O.222 0.274 O.278 0 423 0.503 0.332 O.394 O.0873 0.144 O.146 O.206 O.348 O.273 O.0739 O.123 S 截面面积F／cm2 理论质量G／(kg／m) 惯性矩Jx=Jy／cm4 截面系数Wx=Wy／cm3 1
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2.5 2.5 25 3 2.5 3 30 3.5 4 2.5 32 3 3.5 32 4 2.5 3 35 3.5 4 5 2.5 3 36 3.5 4 5 2.5 3 3.5 40 4 5 6 2.5 42 3 1.84 2.14 2.49 2.64 3.01 3.50 3.89 2.84 3.33 3 78 4.21 3.14 3.69 4.20 4.68 5.58 3.24 3.81 4.3_4 4.85 5.75 3.64 4.29 4.90 5.49 6.58 7.55 3.84 4.53 1.45 1.68 1.95 2.08 2.42 2.75 3.05 2.23 2.61 2.97 3.30 2.47 2.89 3.30 3.68 4.38 2.55 2.99 3.4l 3.8l 4.53 2.86 3.37 3.85 4.3l 5.16 5.93 3.02 3.55 1.21 1.86 2.08 3.41 3.86 4.25 4.58 4.21 4.79 5.29 5.73 5.54 6.45 7.16 7.78 8.79 6.18 7.07 7.87 8.56 9.70 8.68 9.98 11.16 12.21 13.98 15.34 10.15 11.70 1.10 1.49 1.57 2.27 2.58 2.83 3.05 2.63 3.00 3.31 3.58 3.22 3.68 4.09 4.45 5.02 3.43 3.93 4.37 4.76 5.39 4.34 4.99 5.58 6.1l 6.99 7.67 4.83 5.57 2
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3.5 4 5 6 3.5 45 4 5 6 45 7 8 4 5 50 6 7 8 4 5 55 6 7 8 4 5 60 6 7 8 4 5 65 6 7 5.18 5.81 6.98 8.03 5.60 6.23 7.58 8.75 9.81 10.8 7.09 8.58 9.95 11.21 12.35 7.89 9.58 11.15 12.51 13.95 8.69 10.58 12.35 14.0l 15.55 9.49 11.58 13.55 15.41 4.07 4.56 5.48 6.30 4.40 4.94 5.95 6.87 7.80 8.44 5.56 6.73 7.8l 8.80 9.70 6.19 7.52 8.75 9.90 10.95 6.82 8.30 9.69 11.00 12.21 7.45 9.07 10.64 12.10 13.10 14.37 16.56 18.22 16.43 18.07 20.90 23.19 24.97 26.30 25.56 29.81 33.35 36.23 38.51 34.87 40.95 46.13 50.47 54.04 46.21 54.57 61.82 68.03 73.28 59.78 70.92 80.72 89.27 6.24 6.84 7.87 8.58 7.30 8.03 9.29 lO.31 11.10 11.59 10.22 11.93 13.34 14.49 15.41 12.58 14.89 16.77 18.35 19.65 15.4 18.19 20.61 22.68 24.43 18.39 21.82 24.84 27.46 3