方钢尺寸规格表2015讲解.doc
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方钢尺寸规格表
(1)尺寸规格见表6—40-表6—45。GB/76728-2007
表6-40冷拔无缝方形钢管的尺寸规格
基本尺寸 截面面积F／cm2 理论质量G／(kg／m) 惯性矩Jx=Jy／cm4 截面系数Wx=Wy／cm3 A S mm 12 O.81.0 O.348
0 423 O.273
0.332 O.0739
O.0873 O.123
O.146 14 1.0
1.5 0.503
O.712 O.394
O.559 0.144
O.192 O.206
0.274 16 1.O
1.5 O.583
O.832 O.458
0.653 O.222
O.300 O.278
O.374 18 1.O
1.5
2.O 0.663
0.952
1.21 O.521
0.747
O.952 O.324
O.442
0.535 O.360
O.491
0.595 20 1.0
1.5
2.0
2.5 O.743
1.07
1.37
1.64 0.583
O.841
1.08
1.29 O.453
0.624
O.763
O.874 0 453
O.624
O.763
O.874 22 1
1.5
27
2.5 O.823
1.19
1.53
1.84 O.646
O.936
1.20
1.45 O.612
0.850
1.05
1.21 O.556
O.773
O.953
1.10 25 2.5
3 2.14
2.49 1.68
1.95 1.86
2.08 1.49
1.57 30 2.5
3
3.5
4 2.64
3.01
3.50
3.89 2.08
2.42
2.75
3.05 3.41
3.86
4.25
4.58 2.27
2.58
2.83
3.05 32 2.5
3
3.5 2.84
3.33
3 78 2.23
2.61
2.97 4.21
4.79
5.29 2.63
3.00
3.31 32 4 4.21 3.30 5.73 3.58 35 2.5
3
3.5
4
5 3.14
3.69
4.20
4.68
5.58 2.47
2.89
3.30
3.68
4.38 5.54
6.45
7.16
7.78
8.79 3.22
3.68
4.09
4.45
5.02 36 2.5
3
3.5
4
5 3.24
3.81
4.3_4
4.85
5.75 2.55
2.99
3.4l
3.8l
4.53 6.18
7.07
7.87
8.56
9.70 3.43
3.93
4.37
4.76
5.39 40 2.5
3
3.5
4
5
6 3.64
4.29
4.90
5.49
6.58
7.55 2.86
3.37
3.85
4.3l
5.16
5.93 8.68
9.98
11.16
12.21
13.98
15.34 4.34
4.99
5.58
6.1l
6.99
7.67 42 2.5
3
3.5
4
5
6 3.84
4.53
5.18
5.81
6.98
8.03 3.02
3.55
4.07
4.56
5.48
6.30 10.15
11.70
13.10
14.37
16.56
18.22 4.83
5.57
6.24
6.84
7.87
8.58 45 3.5
4
5 5.60
6.23
7.58 4.40
4.94
5.95 16.43
18.07
20.90 7.30
8.03
9.29 45 6
7
8 8.75
9.81
10.8 6.87
7.80
8.44 23.19
24.97
26.30 lO.31
11.10
11.59 50 4
5
6
7
8 7.09
8.58
9.95
11.21
12.35 5.56
6.73
7.8l
8.80
9.70 25.56
29.81
33.35
36.23
38.51 10.22
11.93
13.34
14.49
15.41 55 4
5
6
7
8 7.89
9.58
11.15
12.51
13.95 6.19
7.52
8.75
9.90
10.95 34.87
40.95
46.13
50.47
54.04 12.58
14.89
16.77
18.35
19.65 60 4
5
6
7
8 8.69
10.58
12.35
14.0l
15.55 6.82
8.30
9.69
11.00
12.21 46.21
54.57
61.82
68.03
73.28 15.4
18.19
20.61
22.68
24.43 65 4
5
6
7
8 9.49
11.58
13.55
15.41
17.15 7.45
9.07
10.64
12.10
13.47 59.78
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