Q345D圆钢理论重量表
直径d（型号）  理论重量 kg/m     直径d（型号）     理论重量kg/m
5.5         0.186              13             1.04
6           0.222              14             1.21
6.5         0.26               15             1.39
7           0.302              16             1.58
8           0.395              17             1.78
9           0.499              18             2
10          0.617              19             2.23
11          0.746              20             2.47
12          0.888              21             2.72
22          2.98               63             24.5
23          3.26               65             26
24          3.55               68             28.5
25          3.85               70             30.2
26          4.17               75             34.7
27          4.49               80             39.5
28          4.83               85             44.5
29          5.18               90             49.9
30          5.55               95             55.6
31          5.92               100            61.7
32          6.31               105            68
33          6.71               110            74.6
34          7.13               115            81.5
35          7.55               120            88.8
36          7.99               125            96.3
38          8.9                130            104
40          9.86               140            121
42          10.9               150            139
45          12.5               160            158
48          14.2               170            178
50          15.4               180            200
53          17.3               190            223
55          18.6               200            247
56          19.3               220            298