GB 702-2008d ，a /mm 圆 钢方 钢
5.50.1860.23760.2220.283
6.50.2600.33270.3020.38580.3950.50290.4990.636100.6170.785110.7460.95120.888 1.1313 1.04 1.3314 1.21 1.5415 1.39 1.7716 1.58 2.0117 1.78 2.2718 2.00 2.5419 2.23 2.8320 2.47 3.1421 2.72 3.4622 2.98 3.823 3.26 4.1524 3.55 4.5225 3.85 4.9126 4.17 5.3127 4.49 5.7228 4.83 6.1529 5.19 6.630 5.55
7.0631 5.927.5432 6.31
8.0433 6.718.55347.13
9.07357.559.62
理论质量 /kg·m -1热轧圆钢和方钢的尺寸和理论重量