截面面积／mm2理论质量／(kg／
m)截面面积／mm2理论质量／(kg／m)截面面积／mm2理论质量
／(kg／
m)
37.0690.05559O.07067.794O.0612
3.28.042O.063l 10.240.08048.868O.0696
3.59.621O.075512.25O.096210.6l O.0833
4.O 12.570.0986160.12613.860.109
4.51
5.9O.12520.25O.15917.54O.138519.830.15425O.19621.65O.170
5.523.76O.18730.250.2372
6.20.206
6.O 28.27O.222360.28331.180.245
6.331.17O.24539.69O.31234.37O.270
7.O 38.48O.30249O.38542.44O.333
7.544.18O.34756.25O.442 850.270.395640.50255.43O.435
8.556.750.44572.250.567
9.O 63.62O.49981O.63670.150.55l
9.570.88O.55690.25O.708 1078.540.617100.O 0.78586.6O.68010.586.59O.680110.2O.865 1195.03O.746121O.950104.80.82311.5103.90.815132.2 1.04 12113.1O.888144.O 1.13124.7O.979
13.O 132.7 1.04169 1.33146.4 1.15
14.O 153.9 1.21196.O 1.54169.7 1.33
15.O 176.7 1.39225.O 1.77194.9 1.53
16.O 201.1 1.58256 2.01221.7 1.7417227 1.78289 2.27250.3 1.9618254.52324 2.54280.6 2.219283.5 2.23361.O 2.83312.6 2.4520314.2 2.47400.O 3.14346.4 2.72
21.O 346.4 2.72441.O 3.46381.93
22.O 380.1 2.98484 3.8419.2 3.2924452.4 3.55576.O 4.52498.8 3.92
25.O 490.9 3.85625.O 4.91541.3 4.25
26.O 530.9 4.17676.O 5.31585.4 4.6
28.O 615.8 4.83784.O 6.15679.O 5.33
30.O 706.9 5.55900.O 7.06779.4 6.1232804.2 6.3l 102.48.04886-8 6.96
34.O 907.97.1311569.0710017.86
35.O 962.17.5512259.62 1
36.O 11228.81
38.O 11348.9144411.3125l 9.824012579.86160012.6138610.942138510.9176413.8152812.O 1
45.O 159012.5202515.9175413.8
48.O 181014.2230418.11991515.750196815.4250019.6216517.O
52.O 220617.3280922243319.1
55.O 262020.556246319.3313624.6
尺寸／mm 圆 钢方 钢六角钢
冷拉圆钢、方钢、六角钢尺寸（GB/T 905-1994）
60.O282722.2360028.3311824.5 63.O311724.5396931.2
65365428.7 67352627.7448935.2
70.O384830.2490038.5424433.1 75441834.7562544.2487138.2 80.O502739.5640050.2554343.5