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|
邊長（mm) |
截面面積(cm2) |
理論重量 (kg/m) |
|
邊長（mm) |
截面面積(cm2) |
理論重量(kg/m) |
|
5 |
0.25 |
0.196 |
30 |
9.00 |
7.06 | |
|
6 |
0.36 |
0.283 |
32 |
10.24 |
8.04 | |
|
7 |
0.49 |
0.385 |
34 |
11.56 |
9.07 | |
|
8 |
0.64 |
0.502 |
36 |
12.96 |
10.17 | |
|
9 |
0.81 |
0.636 |
38 |
14.44 |
11.24 | |
|
10 |
1.00 |
0.785 |
40 |
16.00 |
12.56 | |
|
11 |
1.21 |
0.95 |
42 |
17.64 |
13.85 | |
|
12 |
1.44 |
1.13 |
45 |
20.25 |
15.90 | |
|
13 |
1.69 |
1.33 |
48 |
23.04 |
18.09 | |
|
14 |
1.96 |
1.54 |
50 |
25.00 |
19.63 | |
|
15 |
2.25 |
1.77 |
53 |
28.09 |
22.05 | |
|
16 |
2.56 |
2.01 |
56 |
31.36 |
24.61 | |
|
17 |
2.89 |
2.27 |
60 |
36.00 |
28.26 | |
|
18 |
3.24 |
2.54 |
63 |
39.69 |
31.16 | |
|
19 |
3.61 |
2.82 |
65 |
42.25 |
33.17 | |
|
20 |
4.00 |
3.14 |
70 |
49.00 |
38.49 | |
|
21 |
4.41 |
3.46 |
75 |
56.25 |
44.16 | |
|
22 |
4.84 |
3.80 |
80 |
64.00 |
50.24 | |
|
24 |
5.76 |
4.52 |
85 |
72.25 |
56.72 | |
|
25 |
6.25 |
4.91 |
90 |
81.00 |
63.59 | |
|
26 |
6.76 |
5.30 |
95 |
90.25 |
70.85 | |
|
28 |
7.84 |
6.15 |
100 |
100.00 |
78.50 |
| ||