圆钢直径规格表直径d(或边长／mm5.566.5710*111213141516171819202122*23242526*2728*2930*3132*3334*3536384042485053*5556*58精度组别1组2组允许偏差／mm±0.20±0.30±0.403组圆 钢..23750.28270.33180.38480.50770.63620.780.95031.1311.3271.5391.7672.0112.272.52.8353.1423.43.8014.15.5244.9095.3095.7266.1586.6057.0697.88.0428.5539.0979.62110.1811.3412.5713.8515.918.119.22.0623.7624.6326.42方 钢0.30.360.420.490.0.8111.211.441.691.962.252.562.3.243.6144.414.845.295.766.256.767.297.848.4199.6110.2410.11.5612.2512.9614.441617.20.2523.042528.0930.2531.3633.圆 钢0.1860.2220.260.3020.3950.4990.6170.7460.8881.041.211.391.581.7822.232.472.722.983.263.553.8.174.494.835.185.555.936.316.717.137.557.998.99.8610.912.514.215.417.318.619.320.7方 钢0.2370.2830.3320.3850.5020.6360.7850.951.131.331.1.772.012.272.2.833.143.463.84.1.524.915.315.726.156.67.067.8.048.559.079.6210.211.312.613.815.918.119.622..23.724.626.4截面面积／cm²理论质量(kg／m)±0.25±0.35±0.40±. 30±. 40±. 50±0.40±0.50±0.60±0.60±. 70±0.80圆钢直径规格表6063*65*6870758085909510010511011512012513014015016017018019020022025028.2731.1733.1836.3238.4844.1850.2756.7563.6270.8878.86.5995.03103.82113.1122.72132.73153.94176.72201.06226.982.47283.53314.16380.13490.883639.6942.26.244956.2572.258190.25100110.25121132.26144156.251691962252562324361400--22.224.526..28.530.234.739.4.9.955.661.76874.681.588.6.310412113915817820022324729838528.331.233.236.338.4.250.256.763.670.878.586.59510411312313311772012272283314--±. 60±. 70±0.80±. 9±1.0±1.1±1.2±1.3±1.4--±2.0--±2.5注：1.表中的理论质量是按钢的密度为7.85g／crn3计算的。
2.表中带“*”号的规格，不推荐使用。
