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1、圆钢与方钢尺寸、外形、厚度理论范围允许偏差、重量允许偏差rolled round and square steel bars Dimension， shape，weight and tolera nee说明：此规范根据中华人民共和国国家标准 GJ/G709-2014圆钢与方钢的尺 寸、外形、重量及允许偏差，结合我们钢材贸易商的实际使用情况做了一些补 充，对国家标准毫无影响。1、 范围：本标准规定了圆钢与方钢的截面形状、截面特性、理论重量允许偏差、 尺寸允许偏差、厚度允许偏差及咼频焊钢规格等。2、截面形状：3、截面特性d或 a/mm圆钢方钢截面面积/cm2每米 重量 /kg/m截面特性截面面积/
2、cm2每米重量/kg/m截面特性I/cm4W/cm3i/cmIx/cm4Wx/cm3ix/cm5.50.2380.1870.00450.01630.1380.3030.2370.00760.02770.15960.2830.2220.00630.02120.150.360.2830.01080.0360.1736.50.3320.26：0.00880.0270.163：0.4230.332 10.0149 :0.04580.18870.3850.3020.01180.03370.1750.490.3850.020.05720.20280.5030.3950.02010.05030.20.640
3、.5020.03410.08530.2319 :0.6360.4990.03220.07160.225r 0.810.6360.05470.12150.26100.7850.6170.04910.09820.2510.7850.08330.16670.289110.950.7460.07190.13070.2751.210.950.1220.22180.318121.1310.8880.10180.16960.31.441.130.17280.2880.346131.3271.0420.14020.21570.3251.691.3270.2380.36620.375141.5391.2080.
4、18860.26940.351.961.5390.32010.45730.404151.7671.3870.24850.33130.375:2.251.7660.4219 :0.56250.433162.0111.5780.32170.40210.42.562.010.54610.68270.462172.271.7820.410.48230.4252.892.2690.6960.81880.491182.5451.9980.51530.57260.45:3.242.5430.8748 :0.9720.52192.8352.2260.63970.67340.4753.612.834 1.086
5、1.1430.548203.1422.4660.78540.78540.543.141.3331.3330.577213.4642.7190.95470.90920.525r 4.413.4621.621 :1.5440.606223.8012.9841.151.0450.554.843.7991.9521.7750.635234.1553.2611.3741.1940.5755.294.1532.3322.0280.664244.5243.5511.6291.3570.65.764.5222.765 12.3040.693254.9093.8531.9171.5340.6256.254.90
6、6 3.2552.6040.722265.3094.1682.2431.7260.656.765.3073.8082.9290.751275.7264.4952.6091.9320.6757.295.7234.429 13.2810.779286.1584.8341 3.0172.1550.71 7.846.1545.122 13.6590.808296.6055.1853.4722.3940.7258.416.5945.8944.0650.837307.0695.5493.9762.6510.75r 97.0656.75 :4.50.866317.5485.9251 4.5332.9250.
7、7751 9.617.5447.696 14.9650.895328.0426.3135.1473.2170.810.248.0388.7385.4610.924338.5536.7145.8213.5280.825M0.898.5499.883 15.990.953349.0797.1276.563.8590.8511.569.07511.146.5510.981359.6217.5537.3664.2090.87512.259.61612.517.1461.013610.187.998.2454.580.9M2.9610.1714 17.7761.0393811.348.90310.245
8、.3870.9514.4411.3417.389.1451.0974012.579.86512.576.28311612.5621.3310.671.1554213.8510.8715.277.2741.0517.6413.8525.9312.351.2124515.912.48r 20.138.9461.12520.2515.9 134.17 115.191.2994818.114.2126.0810.861.223.0418.0944.2418.431.3865019.6415.4230.6812.271.252519.6352.0820.831.4435221.2416.6735.891
9、3.81.327.0421.2360.9323.431.5015523.7618.6544.9216.331.37530.2523.7576.2627.731.5885624.6319.3348.2717.241.431.3624.6281.9529.271.6175826.4220.7455.5519.161.4533.6426.41194.332.521.6746028.2722.1963.6221.211.53628.26108361.7326331.1724.4777.3324.551.57539.6931.16131.341.671.8196533.1826.0587.6226.96
10、1.625M2.2533.17148.8 :45.771.8766836.3228.5110530.871.746.2436.3178.252.411.9637038.4830.21117.933.671.754938.46200.157.172.0217544.1834.68155.341.421.87556.2544.16263.770.312.1658050.2739.46201.150.2726450.24341.385.332.3098556.7544.55256.260.292.12572.2556.72435102.42.4549063.6249.94322.171.572.25
11、P 8163.59 546.8121.52.5989570.8855.64399.884.172.37590.2570.85678.8142.92.74210078.5461.65490.998.172.510078.5833.3166.72.887105 :86.5967.97:596.7113.62.625：110.386.551013 :192.93.03111095.0374.6718.7130.72.7512194.99 1220221.83.175115103.881.5858.5149.32.875132.3103.81458253.53.32120 :113.188.78P 1018169.63P 144113 11728 :2883.464125122.796.331198191.73.125156.3122.72035325.53.608130132.7104.21402215.73.25169132.72380366.23.753140 :153.9120.8P 1886269.43.5P 196153.93201 :457.34.041150176.7138.72485331.33.75225176.64219562.54.33160201.1157
