b-边宽；d-边厚；r-内圆弧半径
角钢号数22.53b202530尺 寸 （mm）d3434343453453456345634584568104567r截面面积(cm2)1.1321.4591.4321.8591.7492.2762.1092.7563.3822.3593.0863.7912.6593.4864.2925.0762.9713.8974.8035.6883.3434.3905.4158.3674.9786.1437.2889.51511.6575.5706.8758.1609.424理论重量(kg/m)0.8891.1451.1241.4591.3731.7861.6562.1632.6541.8522.4222.9762.0882.7363.3693.9852.3323.0593.7704.4652.6243.4464.2516.5683.9074.8225.7217.4699.1514.3725.3976.4067.398外表面积(m2/m)0.0780.0770.0980.0970.1170.1170.1410.1410.1410.1570.1570.1560.1770.1770.1760.1760.1970.1970.1960.1960.2210.2200.2200.2190.2480.2480.2470.2470.2460.2750.2750.2750.2753.54.53.63644054.54555505.55.65666.36377708(7.5)75880990101001111012.51251414016160181802020085678105678106781012678101214167810121481012141012141610121416121416181416189101214161810.6777.3678.79710.16011.50314.1267.9129.39710.86012.30315.12610.63712.30113.94417.16720.30611.93213.79615.63819.26122.80026.25629.62715.19617.23821.26125.20029.05619.75024.37328.91233.36727.37332.51237.56742.53931.50237.44143.29649.06742.24148.80655.46761.95554.64262.01369.3018.3735.8186.9057.9769.03011.0896.2117.3768.5259.65811.8748.3509.65610.94613.47615.9409.36610.8312.27615.12017.89820.61123.25711.92813.53216.69019.78222.80915.50419.13322.69626.19321.48825.52229.49033.39324.72929.39133.98738.51833.15938.38343.54248.63442.89448.68054.4010.2740.2950.2940.2940.2940.2930.3150.3140.3140.3140.3130.3540.3540.3530.3530.3520.3930.3930.3930.3920.3910.3910.3900.4330.4330.4320.4310.4310.4920.4910.4910.4900.5510.5510.5500.5490.6300.6300.6290.6290.7100.7090.7090.7080.7880.7880.78720200182076.50560.0560.7872490.66171.1680.785注 （1）等边角钢的通常长度：2~4号长3~9m；5~8号长4~12m；9~14号长4~19m；16~20号长6~19m。 （2）制造钢号：A3，A3F，B3F。
（3）标记举例：普通碳素钢甲类平炉3号沸腾钢160mmX160mmX16mm的热轧等边角钢的标记为： 热轧等边角钢160x160x16-YB166-65
A3F-YB170-63
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