對邊間隔s/mm
|
答應(yīng)偏差/mm
|
截面面積/cm2
|
理論質(zhì)量(kg/m)
|
||||
l組
|
2組
|
3組
|
六角鋼
|
八角鋼
|
六角鋼
|
八角鋼
|
|
8
|
±O.25
|
±0.35
|
±O.40
|
O.5543
|
|
0.435
|
|
9
|
O.7015
|
|
0.551
|
|
|||
10
|
0.866
|
|
0.680
|
|
|||
ll
|
1.048
|
|
0.823
|
|
|||
12
|
1.247
|
|
O.979
|
|
|||
13
|
1.464
|
|
1.15
|
|
|||
14
|
1.697
|
|
1.33
|
|
|||
15
|
1.949
|
|
1.53
|
|
|||
16
|
2.217
|
2.120
|
1.74
|
1.66
|
|||
17
|
2.503
|
|
1.96
|
|
|||
18
|
2.806
|
2.683
|
2.20
|
2.16
|
|||
19
|
3.126
|
|
2.45
|
|
|||
20
|
3.464
|
3.312
|
2.72
|
2.60
|
|||
21
|
±O.30
|
±O.40
|
±0.50
|
3.819
|
|
3.00
|
|
22
|
4.192
|
4.008
|
3.29
|
3.15
|
|||
23
|
4.581
|
|
3.60
|
|
|||
24
|
4.988
|
|
3.92
|
|
|||
25
|
5.413
|
5.175
|
4.25
|
4.06
|
|||
26
|
5.854
|
|
4.60
|
|
|||
27
|
6.314
|
|
4.96
|
|
|||
28
|
6.790
|
6.492
|
5.33
|
5.10
|
|||
30
|
7.794
|
7.452
|
6.12
|
5.85
|
|||
32
|
±O.40
|
±O.50
|
±0.60
|
8.868
|
8.479
|
6.96
|
6.66
|
34
|
lO.011
|
9.572
|
7.86
|
7.51
|
|||
36
|
11.223
|
10.731
|
8.81
|
8.42
|
|||
38
|
12.505
|
11.956
|
9.82
|
9.39
|
|||
40
|
13.86
|
13.25
|
10.88
|
10.40
|
|||
42
|
±0.40
|
±O.50
|
±O.60
|
15.28
|
|
11.99
|
|
45
|
17.54
|
|
13.77
|
|
|||
48
|
19.95
|
|
15.66
|
|
|||
50
|
21.65
|
|
17.00
|
|
|||
53
|
24.33
|
|
19.10
|
|
|||
56
|
27.16
|
|
21.32
|
|
|||
58
|
29.13
|
|
22.87
|
|
|||
60
|
±O.60
|
±0.70
|
±O.80
|
31.18
|
|
24.50
|
--
|
63
|
34.37
|
|
26.98
|
|
|||
65
|
36.59
|
|
28.72
|
|
|||
68
|
40.04
|
|
31.43
|
|
|||
70
|
42.43
|
|
33.30
|
|