| 规格 |
尺寸/mm |
截面面积
/cm2 |
理论质量
W/（kg/m） |
| 边宽b |
边厚d |
| 2 |
20
20
|
3
4
|
1.13
1.46
|
0.889
1.145
|
| 2.5 |
25
25
|
3
4
|
1.43
1.86
|
1.124
1.459
|
|
3
|
30
30
|
3
4
|
1.75
2.28
|
1.373
1.786
|
|
3.6
|
36
36
36
|
3
4
5
|
2.11
2.76
3.38
|
1.656
2.163
2.654
|
|
4
|
40
40
40
|
3
4
5
|
2.36
3.09
3.79
|
1.852
2.422
2.976
|
|
4.5
|
45
45
45
45
|
3
4
5
6
|
2.66
3.49
4.29
5.08
|
2.088
2.736
3.369
3.985
|
|
5
|
50
50
50
50
|
3
4
5
6
|
2.97
3.9
4.803
5.688
|
2.332
3.059
3.77
4.465
|
|
5.6
|
56
56
56
56
|
3
4
5
8
|
3.343
4.39
5.415
8.367
|
2.624
3.446
4.251
6.568
|
|
6.3
|
63
63
63
63
63
|
4
5
6
8
10
|
4.978
6.143
7.288
9.515
11.657
|
3.907
4.822
5.721
7.469
9.151
|
|
7
|
70
70
70
70
70
|
4
5
6
7
8
|
5.57
6.875
8.16
9.424
10.667
|
4.372
5.397
6.406
7.398
8.373
|
|
7.5
|
75
75
75
75
75
|
5
6
7
8
10
|
7.412
8.797
10.16
11.503
14.126
|
5.818
6.905
7.976
9.03
11.089
|
|
8
|
80
80
80
80
80
|
5
6
7
8
10
|
7.912
9.397
10.86
12.303
15.126
|
6.211
7.376
8.525
9.658
11.874
|
|
9
|
90
90
90
90
90
|
6
7
8
10
12
|
10.637
12.301
13.944
17.167
20.306
|
8.35
9.656
10.946
13.476
15.94
|
|
10
|
100
100
100
100
100
100
100
|
6
7
8
10
12
14
16
|
11.932
13.796
15.638
19.261
22.8
26.256
29.627
|
9.366
10.83
12.276
15.12
17.898
20.611
23.257
|
|
11
|
110
110
110
110
110
|
7
8
10
12
14
|
15.196
17.238
21.261
25.2
29.056
|
11.928
13.532
16.69
19.782
22.809
|
|
12.5
|
125
125
125
125
|
8
10
12
14
|
19.75
24.373
28.912
33.367
|
15.504
19.133
22.696
26.193
|
|
14
|
140
140
140
140
|
10
12
14
16
|
27.373
32.512
37.567
42.539
|
21.488
25.522
29.49
33.393
|
|
16
|
160
160
160
160
|
10
12
14
16
|
31.502
37.441
43.296
49.067
|
24.729
29.391
33.987
38.518
|
|
18
|
180
180
180
180
|
12
14
16
18
|
42.241
48.896
55.467
61.955
|
33.159
38.383
43.542
48.634
|
|
20
|
200
200
200
200
200
|
14
16
18
20
24
|
54.642
62.013
69.301
76.505
90.661
|
42.894
48.68
54.401
60.056
71.168
|
