尺 寸
|
特 性**
|
公称*尺寸
|
壁厚
|
每英尺重量
|
截面积
|
X-X轴
|
Y-Y轴
|
Ix
|
Sx
|
rx
|
Iy
|
Sy
|
ry
|
ln.
|
ln.
|
Lb.
|
ln.2
|
ln.4
|
ln.3
|
ln.
|
ln.4
|
ln.3
|
ln.
|
8×3
|
.3750
|
3/8
|
24.93
|
7.33
|
51.0
|
12.7
|
2.64
|
10.4
|
6.92
|
1.19
|
|
.3125
|
5/16
|
21.21
|
6.23
|
44.7
|
11.2
|
2.68
|
9.25
|
6.16
|
1.22
|
|
.2500
|
1/4
|
17.32
|
5.09
|
37.6
|
9.40
|
2.72
|
7.90
|
5.26
|
1.25
|
|
.1875
|
3/16
|
13.25
|
3.89
|
29.6
|
7.40
|
2.76
|
6.31
|
4.21
|
1.27
|
8×2
|
.3750
|
3/8
|
22.37
|
6.58
|
40.1
|
10.0
|
2.47
|
3.85
|
3.85
|
.765
|
|
.3125
|
5/16
|
19.08
|
5.61
|
35.5
|
8.87
|
2.51
|
3.52
|
3.52
|
.792
|
|
.2500
|
1/4
|
15.62
|
4.59
|
30.1
|
7.52
|
2.56
|
3.08
|
3.08
|
.819
|
|
.1875
|
3/16
|
11.97
|
3.52
|
23.9
|
5.97
|
2.60
|
2.52
|
2.52
|
.847
|
7×5
|
.5000
|
1/2
|
35.24
|
10.4
|
63.5
|
18.1
|
2.48
|
37.2
|
14.9
|
1.90
|
|
.3750
|
3/8
|
27.48
|
8.08
|
52.2
|
14.9
|
2.54
|
30.8
|
12.3
|
1.95
|
|
.3125
|
5/16
|
23.34
|
6.86
|
45.5
|
13.0
|
2.58
|
26.9
|
10.8
|
1.98
|
|
.2500
|
1/4
|
19.02
|
5.59
|
38.0
|
10.9
|
2.61
|
22.6
|
9.04
|
2.01
|
|
.1875
|
3/16
|
14.53
|
4.27
|
29.8
|
8.50
|
2.64
|
17.7
|
7.10
|
2.04
|
7×4
|
.3750
|
3/8
|
24.93
|
7.33
|
44.0
|
12.6
|
2.45
|
18.1
|
9.06
|
1.57
|
|
.3125
|
5/16
|
21.21
|
6.23
|
38.5
|
11.0
|
2.49
|
16.0
|
7.98
|
1.60
|
|
.2500
|
1/4
|
17.32
|
5.09
|
32.3
|
9.23
|
2.52
|
13.5
|
6.75
|
1.63
|
|
.1875
|
3/16
|
13.25
|
3.89
|
25.4
|
7.26
|
2.55
|
10.7
|
5.34
|
1.66
|
7×3
|
.3750
|
3/8
|
22.37
|
6.58
|
35.7
|
10.2
|
2.33
|
9.08
|
6.05
|
1.18
|
|
.3125
|
5/16
|
19.08
|
5.61
|
31.5
|
9.00
|
2.37
|
8.11
|
5.41
|
1.20
|
|
.2500
|
1/4
|
15.62
|
4.59
|
26.6
|
7.61
|
2.41
|
6.95
|
4.63
|
1.23
|
|
.1875
|
3/16
|
11.97
|
3.52
|
21.1
|
6.02
|
2.45
|
5.57
|
3.71
|
1.26
|
6×4
|
.5000
|
1/2
|
28.43
|
8.36
|
35.3
|
11.8
|
2.06
|
18.4
|
9.21
|
1.48
|
|
.3750
|
3/8
|
22.37
|
6.58
|
29.7
|
9.90
|
2.13
|
15.6
|
7.82
|
1.54
|
|
.3125
|
5/16
|
19.08
|
5.61
|
26.2
|
8.72
|
2.16
|
13.8
|
6.92
|
1.57
|
|
.2500
|
1/4
|
15.62
|
4.59
|
22.1
|
7.36
|
2.19
|
11.7
|
5.87
|
1.60
|
|
.1875
|
3/16
|
11.97
|
3.52
|
17.4
|
5.81
|
2.23
|
9.32
|
4.66
|
1.63
|
*指平直边的外部尺寸
**特性是根据外圆角公称半径等于壁厚的两倍计算的。
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