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1、熱軋不等邊角鋼(GB/T9788--1988)www.zh818.com 2009-4-2417:40:58 中國鋼材價格網(wǎng)(1)尺寸規(guī)格見表4-21。(2)允許偏差見表4_22。?表4~21熱軋不等邊角鋼的尺寸規(guī)格角鋼號數(shù)尺?寸/m截面面積/cm2理論質(zhì)量/(kg/m)外表面積/(m2/m)參考數(shù)值x-xY-YX1~X1Y1-Y1U-UBbdrIx/cm4ix/cmWx/cm3Iy/cm4Iy/cmWy/cm3Ix1/cm4Yo/cmIyo/cm4Xo/cmIu/cm4iu/cmWu/cm3tana2.5/1.625?16?343.51.1
2、621.499O.9121.176O.080O.079O.700.88O.780.770.43O.55O.22O.270.44O.430.190.241.562.09O.860.90O.43O.59O.420.460.14O.17O.340.34O.160.200.3920.3813.2/23220341.4921.9391.1711.522O.1020.1011.531.931.011.00O.72O.93O.46O.57O.55O.540.30O.393.274.371.081.120.821.12O.49O.530.28O.350.43
3、O.420.25O.32O.3820.3744/2.540253441.8902.4671.4841.9360.127O.1273.083.931.281.361.151.490.931.180.700.690.49O.635.398.531.321.371.592.14O.59O.63O.56O.710.540.54O.40O.52O.386O.3814.5/2.845283452.1492.8061.6872.203O.1430.1434.455.691.441.421.471.911.341.700.79O.780.62O.809.10
4、12.131.471.512.233.00O.640.68O.801.02O.610.600.51O.660.383O.3805/3.2?50?3234?2.4311.9082.4940.161O.1606.248.021.601.591.842.392.022.58O.910.900.821.0612.491.601.653.314.450.73O.771.201.53O.70O.69O.680.870.4040.4025.53.17716.65?????????????角鋼號數(shù)尺?寸/m截面面積/cm2理論質(zhì)量/(kg/m)外表面積/(m
5、2/m)參考數(shù)值x-xY-YX1~X1Y1-Y1U-UBbdrIx/cm4ix/cmWx/cm3Iy/cm4Iy/cmWy/cm3Ix1/cm4Yo/cmIyo/cm4Xo/cmIu/cm4iu/cmWu/cm3tana5.6/3.6?56??36?345?6?2.7433.5904.4152.1532.8183.466O.181O.180O.1808.8811.4513.861.801.791.772.323.033.712.923.764.491.031.021.011.051.371.6517.5423.3929.251.781.821
6、.874.706.337.94O.800.850.881.732.232.670.790.790.78O.871.131.360.4080.408O.4046.3/4??63??40?4567?7?4.0584.9935.9086.8023.1853.9204.6385.3390.202O.202O.201O.20116.4920.0223.3626.532.022.001.961.983.874.745.596.405.236.317.298.241.141.121.111.101.702.712.432.7833.3041.6349.98
7、58.072.042.082.122.158.6310.8613.1215.470.92O.950.991.033.123.764.344.97O.88O.870.86O.861.401.711.992.290.398O.396O.3930.3897/4.5??70??45?45677.5?4.5475.6096.6477.6573.5704.4035.2186.011O.2260.2250.2250.22523.1727.9532.5437.222.262.232.212.204.865.926.958.037.559.131O.6212.
8、011.291.281.261.252.172.653.123.5745.9257.1068.3579.992.242.282.322.3612.2615.3918