方钢尺寸规格参数表(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截面面积 F/cm2理论质量 G/(kg/m)惯性矩 J=J/cm4xy截面系数 W=W/xySmmO.80.3480.2730.07390.1231.004230.3320.08730.1461.00.5030.3940.1440.2061.50.7120.5590.1920.2741.00.5830.4580.2220.2781.50.8320.6530.3000.3741.O0.6630.5210.3240.3601.50.9520.7470.4420.4912.O1.210.9520.5350.5951.00.7430.5830.45304531.51.070.8410.6240.6242.01.371.080.7630.7632.51.641.290.8740.87410.8230.6460.6120.5561.51.190.9360.8500.773271.531.201.050.9532.51.841.451.211.102.52.141.681.861.4932.491.952.081.572.52.642.083.412.2733.012.423.862.583.53.502.754.252.8343.893.054.583.052.52.842.234.212.6333.332.614.793.003.53782.975.293.3144.213.305.733.582.53.142.475.543.2233.692.896.453.683.54.203.307.164.0944.683.687.784.4555.584.388.795.022.53.242.556.183.4333.812.997.073.933.54.3_43.417.874.3744.853.818.564.7655.754.539.705.392.53.642.868.684.3434.293.379.984.993.54.903.8511.165.5845.494.3112.216.1156.585.1613.986.9967.555.9315.347.672.53.843.0210.154.8334.533.5511.705.573.55.184.0713.106.2445.814.5614.376.8456.985.4816.567.8768.036.3018.228.583.55.604.4016.437.3046.234.9418.078.0357.585.9520.909.2968.756.8723.191O.3179.817.8024.9711.10810.88.4426.3011.5947.095.5625.5610.2258.586.7329.8111.9369.957.8133.3513.34711.218.8036.2314.49812.359.7038.5115.4147.896.1934.8712.5859.587.5240.9514.89611.158.7546.1316.77712.519.9050.4718.35813.9510.9554.0419.6548.696.8246.2115.4510.588.3054.5718.19612.359.6961.8220.61714.0111.0068.0322.68815.5512.2173.2824.4349.497.4559.7818.39511.589.0770.9221.82613.5510.6480.7224.84715.4112.1089.2727.46817.1513.4796.6429.74410.298.0875.7821.65512.589.8790.2625.79614.711.58103.129.47716.8113.19114.532.72818.7514.72124.535.57411.098.7094.425.17513.5810.66112.830.08615.9512.52129.434.507182114.29144.238.44820.3515.98157.341.94411.899.33115.928.96514.5811.44138.934.72617.1513.46159.739.93719.6115.39178.544.63821.9517.23195.448.85516.9813.33217.147.19620.0315.72251.15...
