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|
方鋼邊長a mm(型號) |
理論重量kg/m |
方鋼邊長a mm(型號) |
理論重量kg/m |
|
方鋼 |
方鋼 | ||
|
5.5 |
0.237 |
13 |
1.33 |
|
6 |
0.283 |
14 |
1.54 |
|
6.5 |
0.332 |
15 |
1.77 |
|
7 |
0.385 |
16 |
2.01 |
|
8 |
0.502 |
17 |
2.27 |
|
9 |
0.636 |
18 |
2.54 |
|
10 |
0.785 |
19 |
2.83 |
|
* 11 |
0.95 |
20 |
3.14 |
|
12 |
1.13 |
21 |
3.46 |
|
22 |
3.8 |
63 |
31.2 |
|
* 23 |
4.15 |
* 65 |
33.2 |
|
24 |
4.52 |
* 68 |
36.3 |
|
25 |
4.91 |
70 |
38.5 |
|
26 |
5.31 |
75 |
44.2 |
|
* 27 |
5.72 |
80 |
50.2 |
|
28 |
6.15 |
85 |
56.7 |
|
* 29 |
6.6 |
90 |
63.6 |
|
30 |
7.06 |
95 |
70.8 |
|
* 31 |
7.54 |
100 |
78.5 |
|
32 |
8.04 |
105 |
86.5 |
|
* 33 |
8.55 |
110 |
95 |
|
34 |
9.07 |
115 |
104 |
|
* 35 |
9.62 |
120 |
113 |
|
36 |
10.2 |
125 |
123 |
|
38 |
11.3 |
130 |
133 |
|
40 |
12.6 |
140 |
154 |
|
42 |
13.8 |
150 |
177 |
|
45 |
15.9 |
160 |
201 |
|
48 |
18.1 |
170 |
227 |
|
50 |
19.6 |
180 |
254 |
|
53 |
22 |
190 |
283 |
|
* 55 |
23.7 |
200 |
314 |
|
56 |
24.6 |
220 |
|
|
* 58 |
26.4 |
250 |
|
|
60 |
28.3 |
|
|
| ||