f?2.x方钢尺寸规格表尺寸规格见表一表一。国标号 GB/76728-2007表冷拔无缝方形钢管的尺寸规格V—上/-A-x基本尺寸截面面积/理论质量//惯性矩/截面系数/■42.51.841.451.211.10252.52.141.681.861.4932.491.952.081.572.52.642.083.412.273033.012.423.862.583.53.502.754.252.8343.893.054.583.052.52.842.234.212.633233.332.614.793.003.53782.975.293.313244.213.305.733.582.53.142.475.543.2233.692.896.453.68353.54.203.307.164.0944.683.687.784.4555.584.388.795.022.53.242.556.183.4333.812.997.073.93363.54.3_43.4l7.874.3744.853.8l8.564.7655.754.539.705.392.53.642.868.684.3434.293.379.984.99403.54.903.8511.165.5845.494.3l12.216.1l56.585.1613.986.9967.555.9315.347.67422.53.843.0210.154.8334.533.5511.705.573.5:65.185.816.988.034.074.565.486.3013.1014.3716.5618.226.246.847.878.58453.5:5.606.237.584.404.945.9516.4318.0720.907.308.039.294568.759.8110.86.877.808.4423.1924.9726.3010.3111.1011.5950:67.098.589.9511.2112.355.566.737.818.809.7025.5629.8133.3536.2338.5110.2211.9313.3414.4915.4155:67.899.5811.1512.5113.956.197.528.759.9010.9534.8740.9546.1350.4754.0412.5814.8916.7718.3519.6560:68.6910.5812.3514.0115.556.828.309.6911.0012.2146.2154.5761.8268.0373.2815.418.1920.6122.6824.4365:69.4911.5813.5515.417.459.0710.6412.1059.7870.9280.7289.2718.3921.8224.8427.46注：理论质量计算式中每米钢管的质量/式中每米钢管的质量/1.520.7110.8910.5590.7000.06540.07280.3150.3730.1640.1820.3150.373100.811.520.4430.5430.7710.9710.3480.4260.6060.7630.07480.08840.1150.1320.2270.2720.3670.4380.1500.1770.2290.2630.2270.2720.3670.438120.811.522.50.4750.5830.8311.051.240.3730.4580.6530.8250.9760.1140.1360.1800.2110.2310.2560.3080.4180.5030.5650.1900.2260.3000.3520.3850.2560.3080.4180.5030.5652290.811.522.50.4590.5630.8011.0111.190.3610.4420.6290.7940.9360.06400.07530.09670.1100.1170.2710.3250.4400.5270.5890.1420.1670.2150.2440.2590.2460.2950.4000.4790.536140.811.522.50.5390.6630.9511.211.440.4230.5200.7460.9511.130.1770.2120.2860.3410.3810.3610.4350.5980.7270.8280.2530.3030.4080.4870.5440.3280.3960.5430.6610.75324120.811.52...
