热轧圆钢和方钢的理论重量.doc

热轧圆钢和方钢的尺寸规格直径d(或边长a)mm精度组别截面面积cm理论质量(kgm)1组2组3组圆 钢方 钢圆 钢方 钢允许偏差mm5.50.200.300.40.23750.300.1860.23760.28270.360.2220.2836.50.33180.420.2600.33270.38480.490.3020.38580.250.350.400.50770.640.3950.50290.63620.810.4990.636100.78541.00.6170.785*110.95031.210.7460.95121.1311.440.8881.13131.3271.691.041.33141.5391.961.211.54151.7672.251.391.77162.0112.561.582.01172.2702.891.782.27182.5453.242.002.54192.8353.612.232.83203.1424.002.473.1421. 30. 40. 503.4644.412.723.46223.8014.842.983.80*234.1555.293.264.15244.5245.763.554.52254.9096.253.854.91265.3096.764.175.31*275.7267.294.495.72286.1587.844.836.15*296.6058.415.186.60307.0699.005.557.06*310.400.500.607.5489.615.937.54328.04210.246.318.04*338.55310.896.718.55349.09711.567.139.07*359.62112.257.559.623610.1812.967.9910.23811.3414.448.9011.34012.5716.009.8612.64213.8517.6410.913.84515.9020.2512.515.94818.1023.0414.218.15019.6425.0015.419.6530.60. 700.8022.0628.0917.322.*5523.7630.2518.623.75624.6331.3619.324.6*5826.4233.6420.726.460. 60. 700.8028.2736.0022.228.36331.1739.6924.531.2*6533.1842.2526.33.2*6836.3246.2428.536.37038.4849.0030.238.57544.1856.2534.744.28050.2764.0039.550.285. 91.01.156.7572.2544.556.79063.6281.0049.963.69570.8890.2555.670.810078.54100.0061.778.510586.59110.2568.086.511095.03121.0074.695.01151.21.31.4103.82132.2681.5104120113.10144.0088.8113125122.72156.2596.3123130132.73169.00104133140153.94196.00121154150176.72225.00139177160-2.0201.06256.00158201170226.98289.00178227180254.47324.00200